browser.cc revision cedac228d2dd51db4b79ea1e72c7f249408ee061 
1// Copyright 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "chrome/browser/ui/browser.h"
6
7#if defined(OS_WIN)
8#include <windows.h>
9#include <shellapi.h>
10#endif  // defined(OS_WIN)
11
12#include <algorithm>
13#include <string>
14
15#include "base/base_paths.h"
16#include "base/bind.h"
17#include "base/command_line.h"
18#include "base/logging.h"
19#include "base/metrics/histogram.h"
20#include "base/path_service.h"
21#include "base/prefs/pref_service.h"
22#include "base/process/process_info.h"
23#include "base/strings/string_number_conversions.h"
24#include "base/strings/string_util.h"
25#include "base/strings/stringprintf.h"
26#include "base/strings/utf_string_conversions.h"
27#include "base/threading/thread.h"
28#include "base/threading/thread_restrictions.h"
29#include "base/time/time.h"
30#include "chrome/app/chrome_command_ids.h"
31#include "chrome/browser/app_mode/app_mode_utils.h"
32#include "chrome/browser/autofill/personal_data_manager_factory.h"
33#include "chrome/browser/background/background_contents_service.h"
34#include "chrome/browser/background/background_contents_service_factory.h"
35#include "chrome/browser/browser_process.h"
36#include "chrome/browser/browser_shutdown.h"
37#include "chrome/browser/character_encoding.h"
38#include "chrome/browser/chrome_notification_types.h"
39#include "chrome/browser/chrome_page_zoom.h"
40#include "chrome/browser/content_settings/host_content_settings_map.h"
41#include "chrome/browser/content_settings/tab_specific_content_settings.h"
42#include "chrome/browser/custom_handlers/protocol_handler_registry.h"
43#include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
44#include "chrome/browser/custom_handlers/register_protocol_handler_infobar_delegate.h"
45#include "chrome/browser/custom_handlers/register_protocol_handler_permission_request.h"
46#include "chrome/browser/defaults.h"
47#include "chrome/browser/devtools/devtools_toggle_action.h"
48#include "chrome/browser/devtools/devtools_window.h"
49#include "chrome/browser/download/download_item_model.h"
50#include "chrome/browser/download/download_service.h"
51#include "chrome/browser/download/download_service_factory.h"
52#include "chrome/browser/download/download_shelf.h"
53#include "chrome/browser/extensions/browser_extension_window_controller.h"
54#include "chrome/browser/extensions/extension_service.h"
55#include "chrome/browser/extensions/tab_helper.h"
56#include "chrome/browser/favicon/favicon_tab_helper.h"
57#include "chrome/browser/file_select_helper.h"
58#include "chrome/browser/first_run/first_run.h"
59#include "chrome/browser/google/google_url_tracker.h"
60#include "chrome/browser/history/top_sites.h"
61#include "chrome/browser/infobars/infobar_service.h"
62#include "chrome/browser/infobars/simple_alert_infobar_delegate.h"
63#include "chrome/browser/lifetime/application_lifetime.h"
64#include "chrome/browser/notifications/notification_ui_manager.h"
65#include "chrome/browser/pepper_broker_infobar_delegate.h"
66#include "chrome/browser/prefs/incognito_mode_prefs.h"
67#include "chrome/browser/profiles/profile.h"
68#include "chrome/browser/profiles/profile_destroyer.h"
69#include "chrome/browser/profiles/profile_metrics.h"
70#include "chrome/browser/repost_form_warning_controller.h"
71#include "chrome/browser/search/search.h"
72#include "chrome/browser/sessions/session_service.h"
73#include "chrome/browser/sessions/session_service_factory.h"
74#include "chrome/browser/sessions/session_tab_helper.h"
75#include "chrome/browser/sessions/session_types.h"
76#include "chrome/browser/sessions/tab_restore_service.h"
77#include "chrome/browser/sessions/tab_restore_service_factory.h"
78#include "chrome/browser/sync/profile_sync_service.h"
79#include "chrome/browser/sync/profile_sync_service_factory.h"
80#include "chrome/browser/sync/sync_ui_util.h"
81#include "chrome/browser/tab_contents/background_contents.h"
82#include "chrome/browser/tab_contents/retargeting_details.h"
83#include "chrome/browser/tab_contents/tab_util.h"
84#include "chrome/browser/themes/theme_service.h"
85#include "chrome/browser/themes/theme_service_factory.h"
86#include "chrome/browser/translate/translate_tab_helper.h"
87#include "chrome/browser/ui/app_modal_dialogs/javascript_dialog_manager.h"
88#include "chrome/browser/ui/autofill/tab_autofill_manager_delegate.h"
89#include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
90#include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
91#include "chrome/browser/ui/bookmarks/bookmark_utils.h"
92#include "chrome/browser/ui/browser_command_controller.h"
93#include "chrome/browser/ui/browser_commands.h"
94#include "chrome/browser/ui/browser_content_setting_bubble_model_delegate.h"
95#include "chrome/browser/ui/browser_content_translate_driver_observer.h"
96#include "chrome/browser/ui/browser_dialogs.h"
97#include "chrome/browser/ui/browser_finder.h"
98#include "chrome/browser/ui/browser_instant_controller.h"
99#include "chrome/browser/ui/browser_iterator.h"
100#include "chrome/browser/ui/browser_list.h"
101#include "chrome/browser/ui/browser_navigator.h"
102#include "chrome/browser/ui/browser_tab_restore_service_delegate.h"
103#include "chrome/browser/ui/browser_tab_strip_model_delegate.h"
104#include "chrome/browser/ui/browser_tabstrip.h"
105#include "chrome/browser/ui/browser_toolbar_model_delegate.h"
106#include "chrome/browser/ui/browser_ui_prefs.h"
107#include "chrome/browser/ui/browser_window.h"
108#include "chrome/browser/ui/chrome_pages.h"
109#include "chrome/browser/ui/chrome_select_file_policy.h"
110#include "chrome/browser/ui/fast_unload_controller.h"
111#include "chrome/browser/ui/find_bar/find_bar.h"
112#include "chrome/browser/ui/find_bar/find_bar_controller.h"
113#include "chrome/browser/ui/find_bar/find_tab_helper.h"
114#include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
115#include "chrome/browser/ui/global_error/global_error.h"
116#include "chrome/browser/ui/global_error/global_error_service.h"
117#include "chrome/browser/ui/global_error/global_error_service_factory.h"
118#include "chrome/browser/ui/media_utils.h"
119#include "chrome/browser/ui/omnibox/location_bar.h"
120#include "chrome/browser/ui/search/search_delegate.h"
121#include "chrome/browser/ui/search/search_model.h"
122#include "chrome/browser/ui/search/search_tab_helper.h"
123#include "chrome/browser/ui/search_engines/search_engine_tab_helper.h"
124#include "chrome/browser/ui/singleton_tabs.h"
125#include "chrome/browser/ui/status_bubble.h"
126#include "chrome/browser/ui/sync/browser_synced_window_delegate.h"
127#include "chrome/browser/ui/tab_contents/core_tab_helper.h"
128#include "chrome/browser/ui/tab_helpers.h"
129#include "chrome/browser/ui/tab_modal_confirm_dialog.h"
130#include "chrome/browser/ui/tabs/tab_menu_model.h"
131#include "chrome/browser/ui/tabs/tab_strip_model.h"
132#include "chrome/browser/ui/tabs/tab_strip_model_utils.h"
133#include "chrome/browser/ui/toolbar/toolbar_model_impl.h"
134#include "chrome/browser/ui/unload_controller.h"
135#include "chrome/browser/ui/validation_message_bubble.h"
136#include "chrome/browser/ui/website_settings/permission_bubble_manager.h"
137#include "chrome/browser/ui/webui/signin/login_ui_service.h"
138#include "chrome/browser/ui/webui/signin/login_ui_service_factory.h"
139#include "chrome/browser/ui/window_sizer/window_sizer.h"
140#include "chrome/browser/ui/zoom/zoom_controller.h"
141#include "chrome/browser/upgrade_detector.h"
142#include "chrome/browser/web_applications/web_app.h"
143#include "chrome/common/chrome_constants.h"
144#include "chrome/common/chrome_switches.h"
145#include "chrome/common/custom_handlers/protocol_handler.h"
146#include "chrome/common/net/url_fixer_upper.h"
147#include "chrome/common/pref_names.h"
148#include "chrome/common/profiling.h"
149#include "chrome/common/search_types.h"
150#include "chrome/common/url_constants.h"
151#include "components/bookmarks/browser/bookmark_model.h"
152#include "components/bookmarks/browser/bookmark_utils.h"
153#include "components/startup_metric_utils/startup_metric_utils.h"
154#include "components/web_modal/web_contents_modal_dialog_manager.h"
155#include "content/public/browser/devtools_manager.h"
156#include "content/public/browser/download_item.h"
157#include "content/public/browser/download_manager.h"
158#include "content/public/browser/interstitial_page.h"
159#include "content/public/browser/invalidate_type.h"
160#include "content/public/browser/navigation_controller.h"
161#include "content/public/browser/navigation_entry.h"
162#include "content/public/browser/notification_details.h"
163#include "content/public/browser/notification_service.h"
164#include "content/public/browser/plugin_service.h"
165#include "content/public/browser/render_process_host.h"
166#include "content/public/browser/render_view_host.h"
167#include "content/public/browser/render_widget_host_view.h"
168#include "content/public/browser/site_instance.h"
169#include "content/public/browser/user_metrics.h"
170#include "content/public/browser/web_contents.h"
171#include "content/public/common/content_switches.h"
172#include "content/public/common/page_zoom.h"
173#include "content/public/common/renderer_preferences.h"
174#include "content/public/common/webplugininfo.h"
175#include "extensions/browser/extension_prefs.h"
176#include "extensions/browser/extension_system.h"
177#include "extensions/common/constants.h"
178#include "extensions/common/extension.h"
179#include "extensions/common/manifest_handlers/background_info.h"
180#include "grit/chromium_strings.h"
181#include "grit/generated_resources.h"
182#include "grit/locale_settings.h"
183#include "grit/theme_resources.h"
184#include "net/base/filename_util.h"
185#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
186#include "net/cookies/cookie_monster.h"
187#include "net/url_request/url_request_context.h"
188#include "third_party/WebKit/public/web/WebWindowFeatures.h"
189#include "ui/base/l10n/l10n_util.h"
190#include "ui/base/window_open_disposition.h"
191#include "ui/gfx/point.h"
192#include "ui/shell_dialogs/selected_file_info.h"
193
194#if defined(OS_WIN)
195#include "base/win/metro.h"
196#include "chrome/browser/ssl/ssl_error_info.h"
197#include "chrome/browser/task_manager/task_manager.h"
198#include "chrome/browser/ui/view_ids.h"
199#include "components/autofill/core/browser/autofill_ie_toolbar_import_win.h"
200#include "ui/base/win/shell.h"
201#endif  // OS_WIN
202
203#if defined(OS_CHROMEOS)
204#include "chrome/browser/chromeos/drive/file_system_util.h"
205#endif
206
207#if defined(USE_ASH)
208#include "ash/ash_switches.h"
209#endif
210
211using base::TimeDelta;
212using base::UserMetricsAction;
213using content::NativeWebKeyboardEvent;
214using content::NavigationController;
215using content::NavigationEntry;
216using content::OpenURLParams;
217using content::PluginService;
218using content::Referrer;
219using content::RenderWidgetHostView;
220using content::SiteInstance;
221using content::WebContents;
222using extensions::Extension;
223using ui::WebDialogDelegate;
224using web_modal::WebContentsModalDialogManager;
225using blink::WebWindowFeatures;
226
227///////////////////////////////////////////////////////////////////////////////
228
229namespace {
230
231// How long we wait before updating the browser chrome while loading a page.
232const int kUIUpdateCoalescingTimeMS = 200;
233
234BrowserWindow* CreateBrowserWindow(Browser* browser) {
235  return BrowserWindow::CreateBrowserWindow(browser);
236}
237
238// Is the fast tab unload experiment enabled?
239bool IsFastTabUnloadEnabled() {
240  return CommandLine::ForCurrentProcess()->HasSwitch(
241        switches::kEnableFastUnload);
242}
243
244}  // namespace
245
246////////////////////////////////////////////////////////////////////////////////
247// Browser, CreateParams:
248
249Browser::CreateParams::CreateParams(Profile* profile,
250                                    chrome::HostDesktopType host_desktop_type)
251    : type(TYPE_TABBED),
252      profile(profile),
253      host_desktop_type(host_desktop_type),
254      trusted_source(false),
255      initial_show_state(ui::SHOW_STATE_DEFAULT),
256      is_session_restore(false),
257      window(NULL) {
258}
259
260Browser::CreateParams::CreateParams(Type type,
261                                    Profile* profile,
262                                    chrome::HostDesktopType host_desktop_type)
263    : type(type),
264      profile(profile),
265      host_desktop_type(host_desktop_type),
266      trusted_source(false),
267      initial_show_state(ui::SHOW_STATE_DEFAULT),
268      is_session_restore(false),
269      window(NULL) {
270}
271
272// static
273Browser::CreateParams Browser::CreateParams::CreateForApp(
274    const std::string& app_name,
275    bool trusted_source,
276    const gfx::Rect& window_bounds,
277    Profile* profile,
278    chrome::HostDesktopType host_desktop_type) {
279  DCHECK(!app_name.empty());
280
281  CreateParams params(TYPE_POPUP, profile, host_desktop_type);
282  params.app_name = app_name;
283  params.trusted_source = trusted_source;
284  params.initial_bounds = window_bounds;
285
286  return params;
287}
288
289// static
290Browser::CreateParams Browser::CreateParams::CreateForDevTools(
291    Profile* profile,
292    chrome::HostDesktopType host_desktop_type) {
293  CreateParams params(TYPE_POPUP, profile, host_desktop_type);
294  params.app_name = DevToolsWindow::kDevToolsApp;
295  params.trusted_source = true;
296  return params;
297}
298
299////////////////////////////////////////////////////////////////////////////////
300// Browser, InterstitialObserver:
301
302class Browser::InterstitialObserver : public content::WebContentsObserver {
303 public:
304  InterstitialObserver(Browser* browser, content::WebContents* web_contents)
305      : WebContentsObserver(web_contents),
306        browser_(browser) {
307  }
308
309  using content::WebContentsObserver::web_contents;
310
311  virtual void DidAttachInterstitialPage() OVERRIDE {
312    browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
313  }
314
315  virtual void DidDetachInterstitialPage() OVERRIDE {
316    browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
317  }
318
319 private:
320  Browser* browser_;
321
322  DISALLOW_COPY_AND_ASSIGN(InterstitialObserver);
323};
324
325///////////////////////////////////////////////////////////////////////////////
326// Browser, Constructors, Creation, Showing:
327
328Browser::Browser(const CreateParams& params)
329    : type_(params.type),
330      profile_(params.profile),
331      window_(NULL),
332      tab_strip_model_delegate_(new chrome::BrowserTabStripModelDelegate(this)),
333      tab_strip_model_(new TabStripModel(tab_strip_model_delegate_.get(),
334                                         params.profile)),
335      app_name_(params.app_name),
336      is_trusted_source_(params.trusted_source),
337      cancel_download_confirmation_state_(NOT_PROMPTED),
338      override_bounds_(params.initial_bounds),
339      initial_show_state_(params.initial_show_state),
340      is_session_restore_(params.is_session_restore),
341      host_desktop_type_(BrowserWindow::AdjustHostDesktopType(
342          params.host_desktop_type)),
343      content_setting_bubble_model_delegate_(
344          new BrowserContentSettingBubbleModelDelegate(this)),
345      toolbar_model_delegate_(new BrowserToolbarModelDelegate(this)),
346      tab_restore_service_delegate_(new BrowserTabRestoreServiceDelegate(this)),
347      synced_window_delegate_(new BrowserSyncedWindowDelegate(this)),
348      bookmark_bar_state_(BookmarkBar::HIDDEN),
349      command_controller_(new chrome::BrowserCommandController(this)),
350      window_has_shown_(false),
351      chrome_updater_factory_(this),
352      weak_factory_(this),
353      translate_driver_observer_(
354          new BrowserContentTranslateDriverObserver(this)) {
355  // If this causes a crash then a window is being opened using a profile type
356  // that is disallowed by policy. The crash prevents the disabled window type
357  // from opening at all, but the path that triggered it should be fixed.
358  CHECK(IncognitoModePrefs::CanOpenBrowser(profile_));
359  CHECK(!profile_->IsGuestSession() || profile_->IsOffTheRecord())
360      << "Only off the record browser may be opened in guest mode";
361
362  // TODO(jeremy): Move to initializer list once flag is removed.
363  if (IsFastTabUnloadEnabled())
364    fast_unload_controller_.reset(new chrome::FastUnloadController(this));
365  else
366    unload_controller_.reset(new chrome::UnloadController(this));
367
368  if (!app_name_.empty())
369    chrome::RegisterAppPrefs(app_name_, profile_);
370  tab_strip_model_->AddObserver(this);
371
372  toolbar_model_.reset(new ToolbarModelImpl(toolbar_model_delegate_.get()));
373  search_model_.reset(new SearchModel());
374  search_delegate_.reset(new SearchDelegate(search_model_.get()));
375
376  registrar_.Add(this,
377                 chrome::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
378                 content::Source<Profile>(profile_->GetOriginalProfile()));
379  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED,
380                 content::Source<Profile>(profile_->GetOriginalProfile()));
381  registrar_.Add(this,
382                 chrome::NOTIFICATION_EXTENSION_UNINSTALLED_DEPRECATED,
383                 content::Source<Profile>(profile_->GetOriginalProfile()));
384  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
385                 content::NotificationService::AllSources());
386#if defined(ENABLE_THEMES)
387  registrar_.Add(
388      this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
389      content::Source<ThemeService>(
390          ThemeServiceFactory::GetForProfile(profile_)));
391#endif
392  registrar_.Add(this, chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED,
393                 content::NotificationService::AllSources());
394
395  profile_pref_registrar_.Init(profile_->GetPrefs());
396  profile_pref_registrar_.Add(
397      prefs::kDevToolsDisabled,
398      base::Bind(&Browser::OnDevToolsDisabledChanged, base::Unretained(this)));
399  profile_pref_registrar_.Add(
400      prefs::kShowBookmarkBar,
401      base::Bind(&Browser::UpdateBookmarkBarState, base::Unretained(this),
402                 BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE));
403
404  BrowserList::AddBrowser(this);
405
406  // NOTE: These prefs all need to be explicitly destroyed in the destructor
407  // or you'll get a nasty surprise when you run the incognito tests.
408  encoding_auto_detect_.Init(prefs::kWebKitUsesUniversalDetector,
409                             profile_->GetPrefs());
410
411  if (chrome::IsInstantExtendedAPIEnabled() && is_type_tabbed())
412    instant_controller_.reset(new BrowserInstantController(this));
413
414  UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_INIT);
415
416  ProfileMetrics::LogProfileLaunch(profile_);
417
418  window_ = params.window ? params.window : CreateBrowserWindow(this);
419
420  // Create the extension window controller before sending notifications.
421  extension_window_controller_.reset(
422      new BrowserExtensionWindowController(this));
423
424  SessionService* session_service =
425      SessionServiceFactory::GetForProfileForSessionRestore(profile_);
426  if (session_service)
427    session_service->WindowOpened(this);
428
429  // TODO(beng): Move BrowserList::AddBrowser() to the end of this function and
430  //             replace uses of this with BL's notifications.
431  content::NotificationService::current()->Notify(
432      chrome::NOTIFICATION_BROWSER_WINDOW_READY,
433      content::Source<Browser>(this),
434      content::NotificationService::NoDetails());
435
436  // TODO(beng): move to ChromeBrowserMain:
437  if (first_run::ShouldDoPersonalDataManagerFirstRun()) {
438#if defined(OS_WIN)
439    // Notify PDM that this is a first run.
440    ImportAutofillDataWin(
441        autofill::PersonalDataManagerFactory::GetForProfile(profile_));
442#endif  // defined(OS_WIN)
443  }
444
445  fullscreen_controller_.reset(new FullscreenController(this));
446}
447
448Browser::~Browser() {
449  // Stop observing notifications before continuing with destruction. Profile
450  // destruction will unload extensions and reentrant calls to Browser:: should
451  // be avoided while it is being torn down.
452  registrar_.RemoveAll();
453
454  // The tab strip should not have any tabs at this point.
455  DCHECK(tab_strip_model_->empty());
456  tab_strip_model_->RemoveObserver(this);
457
458  // Destroy the BrowserCommandController before removing the browser, so that
459  // it doesn't act on any notifications that are sent as a result of removing
460  // the browser.
461  command_controller_.reset();
462  BrowserList::RemoveBrowser(this);
463
464  SessionService* session_service =
465      SessionServiceFactory::GetForProfile(profile_);
466  if (session_service)
467    session_service->WindowClosed(session_id_);
468
469  TabRestoreService* tab_restore_service =
470      TabRestoreServiceFactory::GetForProfile(profile());
471  if (tab_restore_service)
472    tab_restore_service->BrowserClosed(tab_restore_service_delegate());
473
474#if !defined(OS_MACOSX)
475  if (!chrome::GetTotalBrowserCountForProfile(profile_)) {
476    // We're the last browser window with this profile. We need to nuke the
477    // TabRestoreService, which will start the shutdown of the
478    // NavigationControllers and allow for proper shutdown. If we don't do this
479    // chrome won't shutdown cleanly, and may end up crashing when some
480    // thread tries to use the IO thread (or another thread) that is no longer
481    // valid.
482    // This isn't a valid assumption for Mac OS, as it stays running after
483    // the last browser has closed. The Mac equivalent is in its app
484    // controller.
485    TabRestoreServiceFactory::ResetForProfile(profile_);
486  }
487#endif
488
489  profile_pref_registrar_.RemoveAll();
490
491  encoding_auto_detect_.Destroy();
492
493  // Destroy BrowserExtensionWindowController before the incognito profile
494  // is destroyed to make sure the chrome.windows.onRemoved event is sent.
495  extension_window_controller_.reset();
496
497  // Destroy BrowserInstantController before the incongnito profile is destroyed
498  // because the InstantController destructor depends on this profile.
499  instant_controller_.reset();
500
501  if (profile_->IsOffTheRecord() &&
502      !BrowserList::IsOffTheRecordSessionActiveForProfile(profile_)) {
503    // An incognito profile is no longer needed, this indirectly frees
504    // its cache and cookies once it gets destroyed at the appropriate time.
505    ProfileDestroyer::DestroyProfileWhenAppropriate(profile_);
506  }
507
508  // There may be pending file dialogs, we need to tell them that we've gone
509  // away so they don't try and call back to us.
510  if (select_file_dialog_.get())
511    select_file_dialog_->ListenerDestroyed();
512
513  int num_downloads;
514  if (OkToCloseWithInProgressDownloads(&num_downloads) ==
515          DOWNLOAD_CLOSE_BROWSER_SHUTDOWN &&
516      !browser_defaults::kBrowserAliveWithNoWindows) {
517    DownloadService::CancelAllDownloads();
518  }
519}
520
521///////////////////////////////////////////////////////////////////////////////
522// Getters & Setters
523
524FindBarController* Browser::GetFindBarController() {
525  if (!find_bar_controller_.get()) {
526    FindBar* find_bar = window_->CreateFindBar();
527    find_bar_controller_.reset(new FindBarController(find_bar));
528    find_bar->SetFindBarController(find_bar_controller_.get());
529    find_bar_controller_->ChangeWebContents(
530        tab_strip_model_->GetActiveWebContents());
531    find_bar_controller_->find_bar()->MoveWindowIfNecessary(gfx::Rect(), true);
532  }
533  return find_bar_controller_.get();
534}
535
536bool Browser::HasFindBarController() const {
537  return find_bar_controller_.get() != NULL;
538}
539
540bool Browser::is_app() const {
541  return !app_name_.empty();
542}
543
544bool Browser::is_devtools() const {
545  return app_name_ == DevToolsWindow::kDevToolsApp;
546}
547
548///////////////////////////////////////////////////////////////////////////////
549// Browser, State Storage and Retrieval for UI:
550
551gfx::Image Browser::GetCurrentPageIcon() const {
552  WebContents* web_contents = tab_strip_model_->GetActiveWebContents();
553  // |web_contents| can be NULL since GetCurrentPageIcon() is called by the
554  // window during the window's creation (before tabs have been added).
555  FaviconTabHelper* favicon_tab_helper =
556      web_contents ? FaviconTabHelper::FromWebContents(web_contents) : NULL;
557  return favicon_tab_helper ? favicon_tab_helper->GetFavicon() : gfx::Image();
558}
559
560base::string16 Browser::GetWindowTitleForCurrentTab() const {
561  WebContents* contents = tab_strip_model_->GetActiveWebContents();
562  base::string16 title;
563
564  // |contents| can be NULL because GetWindowTitleForCurrentTab is called by the
565  // window during the window's creation (before tabs have been added).
566  if (contents) {
567    title = contents->GetTitle();
568    FormatTitleForDisplay(&title);
569  }
570  if (title.empty())
571    title = CoreTabHelper::GetDefaultTitle();
572
573#if defined(OS_MACOSX)
574  // On Mac, we don't want to suffix the page title with
575  // the application name.
576  return title;
577#elif defined(USE_ASH)
578  // On Ash, we don't want to suffix the page title with the application name,
579  // but on Windows, where USE_ASH can also be true, we still want the prefix
580  // on desktop.
581  if (host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH)
582    return title;
583#endif
584  // Don't append the app name to window titles on app frames and app popups
585  return is_app() ?
586      title :
587      l10n_util::GetStringFUTF16(IDS_BROWSER_WINDOW_TITLE_FORMAT, title);
588}
589
590// static
591void Browser::FormatTitleForDisplay(base::string16* title) {
592  size_t current_index = 0;
593  size_t match_index;
594  while ((match_index = title->find(L'\n', current_index)) !=
595         base::string16::npos) {
596    title->replace(match_index, 1, base::string16());
597    current_index = match_index;
598  }
599}
600
601///////////////////////////////////////////////////////////////////////////////
602// Browser, OnBeforeUnload handling:
603
604bool Browser::ShouldCloseWindow() {
605  if (!CanCloseWithInProgressDownloads())
606    return false;
607
608  if (IsFastTabUnloadEnabled())
609    return fast_unload_controller_->ShouldCloseWindow();
610  return unload_controller_->ShouldCloseWindow();
611}
612
613bool Browser::CallBeforeUnloadHandlers(
614    const base::Callback<void(bool)>& on_close_confirmed) {
615  cancel_download_confirmation_state_ = RESPONSE_RECEIVED;
616  if (IsFastTabUnloadEnabled()) {
617    return fast_unload_controller_->CallBeforeUnloadHandlers(
618        on_close_confirmed);
619  }
620  return unload_controller_->CallBeforeUnloadHandlers(on_close_confirmed);
621}
622
623void Browser::ResetBeforeUnloadHandlers() {
624  cancel_download_confirmation_state_ = NOT_PROMPTED;
625  if (IsFastTabUnloadEnabled())
626    fast_unload_controller_->ResetBeforeUnloadHandlers();
627  else
628    unload_controller_->ResetBeforeUnloadHandlers();
629}
630
631bool Browser::HasCompletedUnloadProcessing() const {
632  DCHECK(IsFastTabUnloadEnabled());
633  return fast_unload_controller_->HasCompletedUnloadProcessing();
634}
635
636bool Browser::IsAttemptingToCloseBrowser() const {
637  if (IsFastTabUnloadEnabled())
638    return fast_unload_controller_->is_attempting_to_close_browser();
639  return unload_controller_->is_attempting_to_close_browser();
640}
641
642void Browser::OnWindowClosing() {
643  if (!ShouldCloseWindow())
644    return;
645
646  // Application should shutdown on last window close if the user is explicitly
647  // trying to quit, or if there is nothing keeping the browser alive (such as
648  // AppController on the Mac, or BackgroundContentsService for background
649  // pages).
650  bool should_quit_if_last_browser =
651      browser_shutdown::IsTryingToQuit() || !chrome::WillKeepAlive();
652
653  if (should_quit_if_last_browser && chrome::ShouldStartShutdown(this))
654    browser_shutdown::OnShutdownStarting(browser_shutdown::WINDOW_CLOSE);
655
656  // Don't use GetForProfileIfExisting here, we want to force creation of the
657  // session service so that user can restore what was open.
658  SessionService* session_service =
659      SessionServiceFactory::GetForProfile(profile());
660  if (session_service)
661    session_service->WindowClosing(session_id());
662
663  TabRestoreService* tab_restore_service =
664      TabRestoreServiceFactory::GetForProfile(profile());
665
666#if defined(USE_AURA)
667  if (tab_restore_service && is_app() && !is_devtools())
668    tab_restore_service->BrowserClosing(tab_restore_service_delegate());
669#endif
670
671  if (tab_restore_service && is_type_tabbed() && tab_strip_model_->count())
672    tab_restore_service->BrowserClosing(tab_restore_service_delegate());
673
674  // TODO(sky): convert session/tab restore to use notification.
675  content::NotificationService::current()->Notify(
676      chrome::NOTIFICATION_BROWSER_CLOSING,
677      content::Source<Browser>(this),
678      content::NotificationService::NoDetails());
679
680  if (!IsFastTabUnloadEnabled())
681    tab_strip_model_->CloseAllTabs();
682}
683
684////////////////////////////////////////////////////////////////////////////////
685// In-progress download termination handling:
686
687void Browser::InProgressDownloadResponse(bool cancel_downloads) {
688  if (cancel_downloads) {
689    cancel_download_confirmation_state_ = RESPONSE_RECEIVED;
690    chrome::CloseWindow(this);
691    return;
692  }
693
694  // Sets the confirmation state to NOT_PROMPTED so that if the user tries to
695  // close again we'll show the warning again.
696  cancel_download_confirmation_state_ = NOT_PROMPTED;
697
698  // Show the download page so the user can figure-out what downloads are still
699  // in-progress.
700  chrome::ShowDownloads(this);
701
702  // Reset UnloadController::is_attempting_to_close_browser_ so that we don't
703  // prompt every time any tab is closed. http://crbug.com/305516
704  if (IsFastTabUnloadEnabled())
705    fast_unload_controller_->CancelWindowClose();
706  else
707    unload_controller_->CancelWindowClose();
708}
709
710Browser::DownloadClosePreventionType Browser::OkToCloseWithInProgressDownloads(
711    int* num_downloads_blocking) const {
712  DCHECK(num_downloads_blocking);
713  *num_downloads_blocking = 0;
714
715  // If we're not running a full browser process with a profile manager
716  // (testing), it's ok to close the browser.
717  if (!g_browser_process->profile_manager())
718    return DOWNLOAD_CLOSE_OK;
719
720  int total_download_count =
721      DownloadService::NonMaliciousDownloadCountAllProfiles();
722  if (total_download_count == 0)
723    return DOWNLOAD_CLOSE_OK;   // No downloads; can definitely close.
724
725  // Figure out how many windows are open total, and associated with this
726  // profile, that are relevant for the ok-to-close decision.
727  int profile_window_count = 0;
728  int total_window_count = 0;
729  for (chrome::BrowserIterator it; !it.done(); it.Next()) {
730    // Don't count this browser window or any other in the process of closing.
731    Browser* const browser = *it;
732    // Window closing may be delayed, and windows that are in the process of
733    // closing don't count against our totals.
734    if (browser == this || browser->IsAttemptingToCloseBrowser())
735      continue;
736
737    if (it->profile() == profile())
738      profile_window_count++;
739    total_window_count++;
740  }
741
742  // If there aren't any other windows, we're at browser shutdown,
743  // which would cancel all current downloads.
744  if (total_window_count == 0) {
745    *num_downloads_blocking = total_download_count;
746    return DOWNLOAD_CLOSE_BROWSER_SHUTDOWN;
747  }
748
749  // If there aren't any other windows on our profile, and we're an incognito
750  // profile, and there are downloads associated with that profile,
751  // those downloads would be cancelled by our window (-> profile) close.
752  DownloadService* download_service =
753      DownloadServiceFactory::GetForBrowserContext(profile());
754  if ((profile_window_count == 0) &&
755      (download_service->NonMaliciousDownloadCount() > 0) &&
756      profile()->IsOffTheRecord()) {
757    *num_downloads_blocking = download_service->NonMaliciousDownloadCount();
758    return DOWNLOAD_CLOSE_LAST_WINDOW_IN_INCOGNITO_PROFILE;
759  }
760
761  // Those are the only conditions under which we will block shutdown.
762  return DOWNLOAD_CLOSE_OK;
763}
764
765////////////////////////////////////////////////////////////////////////////////
766// Browser, Tab adding/showing functions:
767
768void Browser::WindowFullscreenStateChanged() {
769  fullscreen_controller_->WindowFullscreenStateChanged();
770  command_controller_->FullscreenStateChanged();
771  UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TOGGLE_FULLSCREEN);
772}
773
774void Browser::VisibleSSLStateChanged(content::WebContents* web_contents) {
775  // When the current tab's SSL state changes, we need to update the URL
776  // bar to reflect the new state.
777  DCHECK(web_contents);
778  if (tab_strip_model_->GetActiveWebContents() == web_contents)
779    UpdateToolbar(false);
780}
781
782
783///////////////////////////////////////////////////////////////////////////////
784// Browser, Assorted browser commands:
785
786void Browser::ToggleFullscreenModeWithExtension(const GURL& extension_url) {
787  fullscreen_controller_->
788      ToggleBrowserFullscreenModeWithExtension(extension_url);
789}
790
791bool Browser::SupportsWindowFeature(WindowFeature feature) const {
792  return SupportsWindowFeatureImpl(feature, true);
793}
794
795bool Browser::CanSupportWindowFeature(WindowFeature feature) const {
796  return SupportsWindowFeatureImpl(feature, false);
797}
798
799void Browser::ToggleEncodingAutoDetect() {
800  content::RecordAction(UserMetricsAction("AutoDetectChange"));
801  encoding_auto_detect_.SetValue(!encoding_auto_detect_.GetValue());
802  // If "auto detect" is turned on, then any current override encoding
803  // is cleared. This also implicitly performs a reload.
804  // OTOH, if "auto detect" is turned off, we don't change the currently
805  // active encoding.
806  if (encoding_auto_detect_.GetValue()) {
807    WebContents* contents = tab_strip_model_->GetActiveWebContents();
808    if (contents)
809      contents->ResetOverrideEncoding();
810  }
811}
812
813void Browser::OverrideEncoding(int encoding_id) {
814  content::RecordAction(UserMetricsAction("OverrideEncoding"));
815  const std::string selected_encoding =
816      CharacterEncoding::GetCanonicalEncodingNameByCommandId(encoding_id);
817  WebContents* contents = tab_strip_model_->GetActiveWebContents();
818  if (!selected_encoding.empty() && contents)
819     contents->SetOverrideEncoding(selected_encoding);
820  // Update the list of recently selected encodings.
821  std::string new_selected_encoding_list;
822  if (CharacterEncoding::UpdateRecentlySelectedEncoding(
823        profile_->GetPrefs()->GetString(prefs::kRecentlySelectedEncoding),
824        encoding_id,
825        &new_selected_encoding_list)) {
826    profile_->GetPrefs()->SetString(prefs::kRecentlySelectedEncoding,
827                                    new_selected_encoding_list);
828  }
829}
830
831void Browser::OpenFile() {
832  content::RecordAction(UserMetricsAction("OpenFile"));
833  select_file_dialog_ = ui::SelectFileDialog::Create(
834      this, new ChromeSelectFilePolicy(
835          tab_strip_model_->GetActiveWebContents()));
836
837  const base::FilePath directory = profile_->last_selected_directory();
838
839  // TODO(beng): figure out how to juggle this.
840  gfx::NativeWindow parent_window = window_->GetNativeWindow();
841  ui::SelectFileDialog::FileTypeInfo file_types;
842  file_types.support_drive = true;
843  select_file_dialog_->SelectFile(ui::SelectFileDialog::SELECT_OPEN_FILE,
844                                  base::string16(),
845                                  directory,
846                                  &file_types,
847                                  0,
848                                  base::FilePath::StringType(),
849                                  parent_window,
850                                  NULL);
851}
852
853void Browser::UpdateDownloadShelfVisibility(bool visible) {
854  if (GetStatusBubble())
855    GetStatusBubble()->UpdateDownloadShelfVisibility(visible);
856}
857
858///////////////////////////////////////////////////////////////////////////////
859
860void Browser::UpdateUIForNavigationInTab(WebContents* contents,
861                                         content::PageTransition transition,
862                                         bool user_initiated) {
863  tab_strip_model_->TabNavigating(contents, transition);
864
865  bool contents_is_selected =
866      contents == tab_strip_model_->GetActiveWebContents();
867  if (user_initiated && contents_is_selected && window()->GetLocationBar()) {
868    // Forcibly reset the location bar if the url is going to change in the
869    // current tab, since otherwise it won't discard any ongoing user edits,
870    // since it doesn't realize this is a user-initiated action.
871    window()->GetLocationBar()->Revert();
872  }
873
874  if (GetStatusBubble())
875    GetStatusBubble()->Hide();
876
877  // Update the location bar. This is synchronous. We specifically don't
878  // update the load state since the load hasn't started yet and updating it
879  // will put it out of sync with the actual state like whether we're
880  // displaying a favicon, which controls the throbber. If we updated it here,
881  // the throbber will show the default favicon for a split second when
882  // navigating away from the new tab page.
883  ScheduleUIUpdate(contents, content::INVALIDATE_TYPE_URL);
884
885  if (contents_is_selected)
886    contents->SetInitialFocus();
887}
888
889///////////////////////////////////////////////////////////////////////////////
890// Browser, PageNavigator implementation:
891
892WebContents* Browser::OpenURL(const OpenURLParams& params) {
893  return OpenURLFromTab(NULL, params);
894}
895
896///////////////////////////////////////////////////////////////////////////////
897// Browser, TabStripModelObserver implementation:
898
899void Browser::TabInsertedAt(WebContents* contents,
900                            int index,
901                            bool foreground) {
902  SetAsDelegate(contents, this);
903  SessionTabHelper* session_tab_helper =
904      SessionTabHelper::FromWebContents(contents);
905  session_tab_helper->SetWindowID(session_id());
906
907  content::NotificationService::current()->Notify(
908      chrome::NOTIFICATION_TAB_PARENTED,
909      content::Source<content::WebContents>(contents),
910      content::NotificationService::NoDetails());
911
912  SyncHistoryWithTabs(index);
913
914  // Make sure the loading state is updated correctly, otherwise the throbber
915  // won't start if the page is loading.
916  LoadingStateChanged(contents, true);
917
918  interstitial_observers_.push_back(new InterstitialObserver(this, contents));
919
920  SessionService* session_service =
921      SessionServiceFactory::GetForProfile(profile_);
922  if (session_service) {
923    session_service->TabInserted(contents);
924    int new_active_index = tab_strip_model_->active_index();
925    if (index < new_active_index)
926      session_service->SetSelectedTabInWindow(session_id(),
927                                              new_active_index);
928  }
929}
930
931void Browser::TabClosingAt(TabStripModel* tab_strip_model,
932                           WebContents* contents,
933                           int index) {
934  fullscreen_controller_->OnTabClosing(contents);
935  SessionService* session_service =
936      SessionServiceFactory::GetForProfile(profile_);
937  if (session_service)
938    session_service->TabClosing(contents);
939  content::NotificationService::current()->Notify(
940      chrome::NOTIFICATION_TAB_CLOSING,
941      content::Source<NavigationController>(&contents->GetController()),
942      content::NotificationService::NoDetails());
943
944  // Sever the WebContents' connection back to us.
945  SetAsDelegate(contents, NULL);
946}
947
948void Browser::TabDetachedAt(WebContents* contents, int index) {
949  // TabDetachedAt is called before TabStripModel has updated the
950  // active index.
951  int old_active_index = tab_strip_model_->active_index();
952  if (index < old_active_index && !tab_strip_model_->closing_all()) {
953    SessionService* session_service =
954        SessionServiceFactory::GetForProfileIfExisting(profile_);
955    if (session_service)
956      session_service->SetSelectedTabInWindow(session_id(),
957                                              old_active_index - 1);
958  }
959  TabDetachedAtImpl(contents, index, DETACH_TYPE_DETACH);
960}
961
962void Browser::TabDeactivated(WebContents* contents) {
963  fullscreen_controller_->OnTabDeactivated(contents);
964  search_delegate_->OnTabDeactivated(contents);
965  SearchTabHelper::FromWebContents(contents)->OnTabDeactivated();
966
967  // Save what the user's currently typing, so it can be restored when we
968  // switch back to this tab.
969  window_->GetLocationBar()->SaveStateToContents(contents);
970
971  if (instant_controller_)
972    instant_controller_->TabDeactivated(contents);
973}
974
975void Browser::ActiveTabChanged(WebContents* old_contents,
976                               WebContents* new_contents,
977                               int index,
978                               int reason) {
979  content::RecordAction(UserMetricsAction("ActiveTabChanged"));
980
981  // Update the bookmark state, since the BrowserWindow may query it during
982  // OnActiveTabChanged() below.
983  UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_SWITCH);
984
985  // Let the BrowserWindow do its handling.  On e.g. views this changes the
986  // focused object, which should happen before we update the toolbar below,
987  // since the omnibox expects the correct element to already be focused when it
988  // is updated.
989  window_->OnActiveTabChanged(old_contents, new_contents, index, reason);
990
991  fullscreen_controller_->OnTabDetachedFromView(old_contents);
992
993  // Discarded tabs always get reloaded.
994  if (tab_strip_model_->IsTabDiscarded(index)) {
995    LOG(WARNING) << "Reloading discarded tab at " << index;
996    static int reload_count = 0;
997    UMA_HISTOGRAM_CUSTOM_COUNTS(
998        "Tabs.Discard.ReloadCount", ++reload_count, 1, 1000, 50);
999    chrome::Reload(this, CURRENT_TAB);
1000  }
1001
1002  // If we have any update pending, do it now.
1003  if (chrome_updater_factory_.HasWeakPtrs() && old_contents)
1004    ProcessPendingUIUpdates();
1005
1006  // Propagate the profile to the location bar.
1007  UpdateToolbar((reason & CHANGE_REASON_REPLACED) == 0);
1008
1009  if (chrome::IsInstantExtendedAPIEnabled())
1010    search_delegate_->OnTabActivated(new_contents);
1011
1012  // Update reload/stop state.
1013  command_controller_->LoadingStateChanged(new_contents->IsLoading(), true);
1014
1015  // Update commands to reflect current state.
1016  command_controller_->TabStateChanged();
1017
1018  // Reset the status bubble.
1019  StatusBubble* status_bubble = GetStatusBubble();
1020  if (status_bubble) {
1021    status_bubble->Hide();
1022
1023    // Show the loading state (if any).
1024    status_bubble->SetStatus(CoreTabHelper::FromWebContents(
1025        tab_strip_model_->GetActiveWebContents())->GetStatusText());
1026  }
1027
1028  if (HasFindBarController()) {
1029    find_bar_controller_->ChangeWebContents(new_contents);
1030    find_bar_controller_->find_bar()->MoveWindowIfNecessary(gfx::Rect(), true);
1031  }
1032
1033  // Update sessions. Don't force creation of sessions. If sessions doesn't
1034  // exist, the change will be picked up by sessions when created.
1035  SessionService* session_service =
1036      SessionServiceFactory::GetForProfileIfExisting(profile_);
1037  if (session_service && !tab_strip_model_->closing_all()) {
1038    session_service->SetSelectedTabInWindow(session_id(),
1039                                            tab_strip_model_->active_index());
1040  }
1041
1042  // This needs to be called after notifying SearchDelegate.
1043  if (instant_controller_)
1044    instant_controller_->ActiveTabChanged();
1045
1046  autofill::TabAutofillManagerDelegate::FromWebContents(new_contents)->
1047      TabActivated();
1048  SearchTabHelper::FromWebContents(new_contents)->OnTabActivated();
1049}
1050
1051void Browser::TabMoved(WebContents* contents,
1052                       int from_index,
1053                       int to_index) {
1054  DCHECK(from_index >= 0 && to_index >= 0);
1055  // Notify the history service.
1056  SyncHistoryWithTabs(std::min(from_index, to_index));
1057}
1058
1059void Browser::TabReplacedAt(TabStripModel* tab_strip_model,
1060                            WebContents* old_contents,
1061                            WebContents* new_contents,
1062                            int index) {
1063  TabDetachedAtImpl(old_contents, index, DETACH_TYPE_REPLACE);
1064  fullscreen_controller_->OnTabClosing(old_contents);
1065  SessionService* session_service =
1066      SessionServiceFactory::GetForProfile(profile_);
1067  if (session_service)
1068    session_service->TabClosing(old_contents);
1069  TabInsertedAt(new_contents,
1070                index,
1071                (index == tab_strip_model_->active_index()));
1072
1073  int entry_count = new_contents->GetController().GetEntryCount();
1074  if (entry_count > 0) {
1075    // Send out notification so that observers are updated appropriately.
1076    new_contents->GetController().NotifyEntryChanged(
1077        new_contents->GetController().GetEntryAtIndex(entry_count - 1),
1078        entry_count - 1);
1079  }
1080
1081  if (session_service) {
1082    // The new_contents may end up with a different navigation stack. Force
1083    // the session service to update itself.
1084    session_service->TabRestored(new_contents,
1085                                 tab_strip_model_->IsTabPinned(index));
1086  }
1087}
1088
1089void Browser::TabPinnedStateChanged(WebContents* contents, int index) {
1090  SessionService* session_service =
1091      SessionServiceFactory::GetForProfileIfExisting(profile());
1092  if (session_service) {
1093    SessionTabHelper* session_tab_helper =
1094        SessionTabHelper::FromWebContents(contents);
1095    session_service->SetPinnedState(session_id(),
1096                                    session_tab_helper->session_id(),
1097                                    tab_strip_model_->IsTabPinned(index));
1098  }
1099}
1100
1101void Browser::TabStripEmpty() {
1102  // Close the frame after we return to the message loop (not immediately,
1103  // otherwise it will destroy this object before the stack has a chance to
1104  // cleanly unwind.)
1105  // Note: This will be called several times if TabStripEmpty is called several
1106  //       times. This is because it does not close the window if tabs are
1107  //       still present.
1108  base::MessageLoop::current()->PostTask(
1109      FROM_HERE, base::Bind(&Browser::CloseFrame, weak_factory_.GetWeakPtr()));
1110
1111  // Instant may have visible WebContents that need to be detached before the
1112  // window system closes.
1113  instant_controller_.reset();
1114}
1115
1116bool Browser::CanOverscrollContent() const {
1117#if defined(USE_AURA)
1118  const std::string value = CommandLine::ForCurrentProcess()->
1119      GetSwitchValueASCII(switches::kOverscrollHistoryNavigation);
1120  bool overscroll_enabled = value != "0";
1121  if (!overscroll_enabled)
1122    return false;
1123  if (is_app() || is_devtools() || !is_type_tabbed())
1124    return false;
1125
1126  // The detached bookmark bar has appearance of floating above the
1127  // web-contents. This does not play nicely with overscroll navigation
1128  // gestures. So disable overscroll navigation when the bookmark bar is in the
1129  // detached state and the overscroll effect moves the layers.
1130  if (value == "1" && bookmark_bar_state_ == BookmarkBar::DETACHED)
1131    return false;
1132  return true;
1133#else
1134  return false;
1135#endif
1136}
1137
1138bool Browser::ShouldPreserveAbortedURLs(WebContents* source) {
1139  // Allow failed URLs to stick around in the omnibox on the NTP, but not when
1140  // other pages have committed.
1141  Profile* profile = Profile::FromBrowserContext(source->GetBrowserContext());
1142  if (!profile || !source->GetController().GetLastCommittedEntry())
1143    return false;
1144  GURL committed_url(source->GetController().GetLastCommittedEntry()->GetURL());
1145  return chrome::IsNTPURL(committed_url, profile);
1146}
1147
1148bool Browser::PreHandleKeyboardEvent(content::WebContents* source,
1149                                     const NativeWebKeyboardEvent& event,
1150                                     bool* is_keyboard_shortcut) {
1151  // Escape exits tabbed fullscreen mode.
1152  // TODO(koz): Write a test for this http://crbug.com/100441.
1153  if (event.windowsKeyCode == 27 &&
1154      fullscreen_controller_->HandleUserPressedEscape()) {
1155    return true;
1156  }
1157  return window()->PreHandleKeyboardEvent(event, is_keyboard_shortcut);
1158}
1159
1160void Browser::HandleKeyboardEvent(content::WebContents* source,
1161                                  const NativeWebKeyboardEvent& event) {
1162  DevToolsWindow* devtools_window =
1163      DevToolsWindow::GetInstanceForInspectedWebContents(source);
1164  bool handled = false;
1165  if (devtools_window)
1166    handled = devtools_window->ForwardKeyboardEvent(event);
1167
1168  if (!handled)
1169    window()->HandleKeyboardEvent(event);
1170}
1171
1172bool Browser::TabsNeedBeforeUnloadFired() {
1173  if (IsFastTabUnloadEnabled())
1174    return fast_unload_controller_->TabsNeedBeforeUnloadFired();
1175  return unload_controller_->TabsNeedBeforeUnloadFired();
1176}
1177
1178void Browser::OverscrollUpdate(int delta_y) {
1179  window_->OverscrollUpdate(delta_y);
1180}
1181
1182void Browser::ShowValidationMessage(content::WebContents* web_contents,
1183                                    const gfx::Rect& anchor_in_root_view,
1184                                    const base::string16& main_text,
1185                                    const base::string16& sub_text) {
1186  RenderWidgetHostView* rwhv = web_contents->GetRenderWidgetHostView();
1187  if (rwhv) {
1188    validation_message_bubble_ =
1189        chrome::ValidationMessageBubble::CreateAndShow(
1190            rwhv->GetRenderWidgetHost(),
1191            anchor_in_root_view,
1192            main_text,
1193            sub_text);
1194  }
1195}
1196
1197void Browser::HideValidationMessage(content::WebContents* web_contents) {
1198  validation_message_bubble_.reset();
1199}
1200
1201void Browser::MoveValidationMessage(content::WebContents* web_contents,
1202                                    const gfx::Rect& anchor_in_root_view) {
1203  if (!validation_message_bubble_)
1204    return;
1205  RenderWidgetHostView* rwhv = web_contents->GetRenderWidgetHostView();
1206  if (rwhv) {
1207    validation_message_bubble_->SetPositionRelativeToAnchor(
1208        rwhv->GetRenderWidgetHost(), anchor_in_root_view);
1209  }
1210}
1211
1212bool Browser::PreHandleGestureEvent(content::WebContents* source,
1213                                    const blink::WebGestureEvent& event) {
1214  // Disable pinch zooming in undocked dev tools window due to poor UX.
1215  if (app_name() == DevToolsWindow::kDevToolsApp)
1216    return event.type == blink::WebGestureEvent::GesturePinchBegin ||
1217           event.type == blink::WebGestureEvent::GesturePinchUpdate ||
1218           event.type == blink::WebGestureEvent::GesturePinchEnd;
1219
1220  return false;
1221}
1222
1223bool Browser::IsMouseLocked() const {
1224  return fullscreen_controller_->IsMouseLocked();
1225}
1226
1227void Browser::OnWindowDidShow() {
1228  if (window_has_shown_)
1229    return;
1230  window_has_shown_ = true;
1231
1232// CurrentProcessInfo::CreationTime() is missing on some platforms.
1233#if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
1234  // Measure the latency from startup till the first browser window becomes
1235  // visible.
1236  static bool is_first_browser_window = true;
1237  if (is_first_browser_window &&
1238      !startup_metric_utils::WasNonBrowserUIDisplayed()) {
1239    is_first_browser_window = false;
1240    const base::Time process_creation_time =
1241        base::CurrentProcessInfo::CreationTime();
1242
1243    if (!process_creation_time.is_null()) {
1244      UMA_HISTOGRAM_LONG_TIMES(
1245          "Startup.BrowserWindowDisplay",
1246          base::Time::Now() - process_creation_time);
1247    }
1248  }
1249#endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
1250
1251  // Nothing to do for non-tabbed windows.
1252  if (!is_type_tabbed())
1253    return;
1254
1255  // Show any pending global error bubble.
1256  GlobalErrorService* service =
1257      GlobalErrorServiceFactory::GetForProfile(profile());
1258  GlobalError* error = service->GetFirstGlobalErrorWithBubbleView();
1259  if (error)
1260    error->ShowBubbleView(this);
1261}
1262
1263void Browser::ShowFirstRunBubble() {
1264  window()->GetLocationBar()->ShowFirstRunBubble();
1265}
1266
1267void Browser::ShowDownload(content::DownloadItem* download) {
1268  if (!window())
1269    return;
1270
1271  // If the download occurs in a new tab, and it's not a save page
1272  // download (started before initial navigation completed) close it.
1273  WebContents* source = download->GetWebContents();
1274  if (source && source->GetController().IsInitialNavigation() &&
1275      tab_strip_model_->count() > 1 && !download->IsSavePackageDownload()) {
1276    CloseContents(source);
1277  }
1278
1279  // Some (app downloads) are not supposed to appear on the shelf.
1280  if (!DownloadItemModel(download).ShouldShowInShelf())
1281    return;
1282
1283  // GetDownloadShelf creates the download shelf if it was not yet created.
1284  DownloadShelf* shelf = window()->GetDownloadShelf();
1285  shelf->AddDownload(download);
1286}
1287
1288///////////////////////////////////////////////////////////////////////////////
1289// Browser, content::WebContentsDelegate implementation:
1290
1291WebContents* Browser::OpenURLFromTab(WebContents* source,
1292                                     const OpenURLParams& params) {
1293  chrome::NavigateParams nav_params(this, params.url, params.transition);
1294  FillNavigateParamsFromOpenURLParams(&nav_params, params);
1295  nav_params.source_contents = source;
1296  nav_params.tabstrip_add_types = TabStripModel::ADD_NONE;
1297  if (params.user_gesture)
1298    nav_params.window_action = chrome::NavigateParams::SHOW_WINDOW;
1299  nav_params.user_gesture = params.user_gesture;
1300
1301  PopupBlockerTabHelper* popup_blocker_helper = NULL;
1302  if (source)
1303    popup_blocker_helper = PopupBlockerTabHelper::FromWebContents(source);
1304
1305  if (popup_blocker_helper) {
1306    if ((params.disposition == NEW_POPUP ||
1307         params.disposition == NEW_FOREGROUND_TAB ||
1308         params.disposition == NEW_BACKGROUND_TAB ||
1309         params.disposition == NEW_WINDOW) &&
1310        !params.user_gesture && !CommandLine::ForCurrentProcess()->HasSwitch(
1311                                    switches::kDisablePopupBlocking)) {
1312      if (popup_blocker_helper->MaybeBlockPopup(nav_params,
1313                                                WebWindowFeatures())) {
1314        return NULL;
1315      }
1316    }
1317  }
1318
1319  chrome::Navigate(&nav_params);
1320
1321  return nav_params.target_contents;
1322}
1323
1324void Browser::NavigationStateChanged(const WebContents* source,
1325                                     unsigned changed_flags) {
1326  // Only update the UI when something visible has changed.
1327  if (changed_flags)
1328    ScheduleUIUpdate(source, changed_flags);
1329
1330  // We can synchronously update commands since they will only change once per
1331  // navigation, so we don't have to worry about flickering. We do, however,
1332  // need to update the command state early on load to always present usable
1333  // actions in the face of slow-to-commit pages.
1334  if (changed_flags & (content::INVALIDATE_TYPE_URL |
1335                       content::INVALIDATE_TYPE_LOAD))
1336    command_controller_->TabStateChanged();
1337}
1338
1339void Browser::AddNewContents(WebContents* source,
1340                             WebContents* new_contents,
1341                             WindowOpenDisposition disposition,
1342                             const gfx::Rect& initial_pos,
1343                             bool user_gesture,
1344                             bool* was_blocked) {
1345  chrome::AddWebContents(this, source, new_contents, disposition, initial_pos,
1346                         user_gesture, was_blocked);
1347}
1348
1349void Browser::ActivateContents(WebContents* contents) {
1350  tab_strip_model_->ActivateTabAt(
1351      tab_strip_model_->GetIndexOfWebContents(contents), false);
1352  window_->Activate();
1353}
1354
1355void Browser::DeactivateContents(WebContents* contents) {
1356  window_->Deactivate();
1357}
1358
1359void Browser::LoadingStateChanged(WebContents* source,
1360    bool to_different_document) {
1361  window_->UpdateLoadingAnimations(tab_strip_model_->TabsAreLoading());
1362  window_->UpdateTitleBar();
1363
1364  WebContents* selected_contents = tab_strip_model_->GetActiveWebContents();
1365  if (source == selected_contents) {
1366    bool is_loading = source->IsLoading() && to_different_document;
1367    command_controller_->LoadingStateChanged(is_loading, false);
1368    if (GetStatusBubble()) {
1369      GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
1370          tab_strip_model_->GetActiveWebContents())->GetStatusText());
1371    }
1372  }
1373}
1374
1375void Browser::CloseContents(WebContents* source) {
1376  bool can_close_contents;
1377  if (IsFastTabUnloadEnabled())
1378    can_close_contents = fast_unload_controller_->CanCloseContents(source);
1379  else
1380    can_close_contents = unload_controller_->CanCloseContents(source);
1381
1382  if (can_close_contents)
1383    chrome::CloseWebContents(this, source, true);
1384}
1385
1386void Browser::MoveContents(WebContents* source, const gfx::Rect& pos) {
1387  if (!IsPopupOrPanel(source)) {
1388    NOTREACHED() << "moving invalid browser type";
1389    return;
1390  }
1391  window_->SetBounds(pos);
1392}
1393
1394bool Browser::IsPopupOrPanel(const WebContents* source) const {
1395  return is_type_popup();
1396}
1397
1398void Browser::UpdateTargetURL(WebContents* source, int32 page_id,
1399                              const GURL& url) {
1400  if (!GetStatusBubble())
1401    return;
1402
1403  if (source == tab_strip_model_->GetActiveWebContents()) {
1404    PrefService* prefs = profile_->GetPrefs();
1405    GetStatusBubble()->SetURL(url, prefs->GetString(prefs::kAcceptLanguages));
1406  }
1407}
1408
1409void Browser::ContentsMouseEvent(
1410    WebContents* source, const gfx::Point& location, bool motion) {
1411  if (!GetStatusBubble())
1412    return;
1413
1414  if (source == tab_strip_model_->GetActiveWebContents()) {
1415    GetStatusBubble()->MouseMoved(location, !motion);
1416    if (!motion)
1417      GetStatusBubble()->SetURL(GURL(), std::string());
1418  }
1419}
1420
1421void Browser::ContentsZoomChange(bool zoom_in) {
1422  chrome::ExecuteCommand(this, zoom_in ? IDC_ZOOM_PLUS : IDC_ZOOM_MINUS);
1423}
1424
1425void Browser::WebContentsFocused(WebContents* contents) {
1426  window_->WebContentsFocused(contents);
1427}
1428
1429bool Browser::TakeFocus(content::WebContents* source,
1430                        bool reverse) {
1431  content::NotificationService::current()->Notify(
1432      chrome::NOTIFICATION_FOCUS_RETURNED_TO_BROWSER,
1433      content::Source<Browser>(this),
1434      content::NotificationService::NoDetails());
1435  return false;
1436}
1437
1438gfx::Rect Browser::GetRootWindowResizerRect() const {
1439  return window_->GetRootWindowResizerRect();
1440}
1441
1442void Browser::BeforeUnloadFired(WebContents* web_contents,
1443                                bool proceed,
1444                                bool* proceed_to_fire_unload) {
1445  if (is_devtools() && DevToolsWindow::HandleBeforeUnload(web_contents,
1446        proceed, proceed_to_fire_unload))
1447    return;
1448
1449  if (IsFastTabUnloadEnabled()) {
1450    *proceed_to_fire_unload =
1451        fast_unload_controller_->BeforeUnloadFired(web_contents, proceed);
1452  } else {
1453    *proceed_to_fire_unload =
1454        unload_controller_->BeforeUnloadFired(web_contents, proceed);
1455  }
1456}
1457
1458bool Browser::ShouldFocusLocationBarByDefault(WebContents* source) {
1459  const content::NavigationEntry* entry =
1460      source->GetController().GetActiveEntry();
1461  if (entry) {
1462    GURL url = entry->GetURL();
1463    GURL virtual_url = entry->GetVirtualURL();
1464    if ((url.SchemeIs(content::kChromeUIScheme) &&
1465        url.host() == chrome::kChromeUINewTabHost) ||
1466        (virtual_url.SchemeIs(content::kChromeUIScheme) &&
1467        virtual_url.host() == chrome::kChromeUINewTabHost)) {
1468      return true;
1469    }
1470  }
1471
1472  return chrome::NavEntryIsInstantNTP(source, entry);
1473}
1474
1475void Browser::SetFocusToLocationBar(bool select_all) {
1476  // Two differences between this and FocusLocationBar():
1477  // (1) This doesn't get recorded in user metrics, since it's called
1478  //     internally.
1479  // (2) This checks whether the location bar can be focused, and if not, clears
1480  //     the focus.  FocusLocationBar() is only reached when the location bar is
1481  //     focusable, but this may be reached at other times, e.g. while in
1482  //     fullscreen mode, where we need to leave focus in a consistent state.
1483  window_->SetFocusToLocationBar(select_all);
1484}
1485
1486int Browser::GetExtraRenderViewHeight() const {
1487  return window_->GetExtraRenderViewHeight();
1488}
1489
1490void Browser::ViewSourceForTab(WebContents* source, const GURL& page_url) {
1491  DCHECK(source);
1492  chrome::ViewSource(this, source);
1493}
1494
1495void Browser::ViewSourceForFrame(WebContents* source,
1496                                 const GURL& frame_url,
1497                                 const content::PageState& frame_page_state) {
1498  DCHECK(source);
1499  chrome::ViewSource(this, source, frame_url, frame_page_state);
1500}
1501
1502void Browser::ShowRepostFormWarningDialog(WebContents* source) {
1503  TabModalConfirmDialog::Create(new RepostFormWarningController(source),
1504                                source);
1505}
1506
1507bool Browser::ShouldCreateWebContents(
1508    WebContents* web_contents,
1509    int route_id,
1510    WindowContainerType window_container_type,
1511    const base::string16& frame_name,
1512    const GURL& target_url,
1513    const std::string& partition_id,
1514    content::SessionStorageNamespace* session_storage_namespace) {
1515  if (window_container_type == WINDOW_CONTAINER_TYPE_BACKGROUND) {
1516    // If a BackgroundContents is created, suppress the normal WebContents.
1517    return !MaybeCreateBackgroundContents(route_id,
1518                                          web_contents,
1519                                          frame_name,
1520                                          target_url,
1521                                          partition_id,
1522                                          session_storage_namespace);
1523  }
1524
1525  return true;
1526}
1527
1528void Browser::WebContentsCreated(WebContents* source_contents,
1529                                 int opener_render_frame_id,
1530                                 const base::string16& frame_name,
1531                                 const GURL& target_url,
1532                                 WebContents* new_contents) {
1533  // Adopt the WebContents now, so all observers are in place, as the network
1534  // requests for its initial navigation will start immediately. The WebContents
1535  // will later be inserted into this browser using Browser::Navigate via
1536  // AddNewContents.
1537  TabHelpers::AttachTabHelpers(new_contents);
1538
1539  // Notify.
1540  RetargetingDetails details;
1541  details.source_web_contents = source_contents;
1542  details.source_render_frame_id = opener_render_frame_id;
1543  details.target_url = target_url;
1544  details.target_web_contents = new_contents;
1545  details.not_yet_in_tabstrip = true;
1546  content::NotificationService::current()->Notify(
1547      chrome::NOTIFICATION_RETARGETING,
1548      content::Source<Profile>(profile_),
1549      content::Details<RetargetingDetails>(&details));
1550}
1551
1552void Browser::RendererUnresponsive(WebContents* source) {
1553  // Ignore hangs if a tab is blocked.
1554  int index = tab_strip_model_->GetIndexOfWebContents(source);
1555  DCHECK_NE(TabStripModel::kNoTab, index);
1556  if (tab_strip_model_->IsTabBlocked(index))
1557    return;
1558
1559  chrome::ShowHungRendererDialog(source);
1560}
1561
1562void Browser::RendererResponsive(WebContents* source) {
1563  chrome::HideHungRendererDialog(source);
1564}
1565
1566void Browser::WorkerCrashed(WebContents* source) {
1567  SimpleAlertInfoBarDelegate::Create(
1568      InfoBarService::FromWebContents(source),
1569      infobars::InfoBarDelegate::kNoIconID,
1570      l10n_util::GetStringUTF16(IDS_WEBWORKER_CRASHED_PROMPT), true);
1571}
1572
1573void Browser::DidNavigateMainFramePostCommit(WebContents* web_contents) {
1574  if (web_contents == tab_strip_model_->GetActiveWebContents())
1575    UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
1576}
1577
1578void Browser::DidNavigateToPendingEntry(WebContents* web_contents) {
1579  if (web_contents == tab_strip_model_->GetActiveWebContents())
1580    UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
1581}
1582
1583content::JavaScriptDialogManager* Browser::GetJavaScriptDialogManager() {
1584  return GetJavaScriptDialogManagerInstance();
1585}
1586
1587content::ColorChooser* Browser::OpenColorChooser(
1588      WebContents* web_contents,
1589      SkColor initial_color,
1590      const std::vector<content::ColorSuggestion>& suggestions) {
1591  return chrome::ShowColorChooser(web_contents, initial_color);
1592}
1593
1594void Browser::RunFileChooser(WebContents* web_contents,
1595                             const content::FileChooserParams& params) {
1596  FileSelectHelper::RunFileChooser(web_contents, params);
1597}
1598
1599void Browser::EnumerateDirectory(WebContents* web_contents,
1600                                 int request_id,
1601                                 const base::FilePath& path) {
1602  FileSelectHelper::EnumerateDirectory(web_contents, request_id, path);
1603}
1604
1605bool Browser::EmbedsFullscreenWidget() const {
1606  return !CommandLine::ForCurrentProcess()->
1607      HasSwitch(switches::kDisableFullscreenWithinTab);
1608}
1609
1610void Browser::ToggleFullscreenModeForTab(WebContents* web_contents,
1611                                         bool enter_fullscreen) {
1612  fullscreen_controller_->ToggleFullscreenModeForTab(web_contents,
1613                                                     enter_fullscreen);
1614}
1615
1616bool Browser::IsFullscreenForTabOrPending(
1617    const WebContents* web_contents) const {
1618  return fullscreen_controller_->IsFullscreenForTabOrPending(web_contents);
1619}
1620
1621void Browser::RegisterProtocolHandler(WebContents* web_contents,
1622                                      const std::string& protocol,
1623                                      const GURL& url,
1624                                      bool user_gesture) {
1625  Profile* profile =
1626      Profile::FromBrowserContext(web_contents->GetBrowserContext());
1627  if (profile->IsOffTheRecord())
1628    return;
1629
1630  ProtocolHandler handler =
1631      ProtocolHandler::CreateProtocolHandler(protocol, url);
1632
1633  ProtocolHandlerRegistry* registry =
1634      ProtocolHandlerRegistryFactory::GetForProfile(profile);
1635  if (registry->SilentlyHandleRegisterHandlerRequest(handler))
1636    return;
1637
1638  TabSpecificContentSettings* tab_content_settings =
1639      TabSpecificContentSettings::FromWebContents(web_contents);
1640  if (!user_gesture && window_) {
1641    tab_content_settings->set_pending_protocol_handler(handler);
1642    tab_content_settings->set_previous_protocol_handler(
1643        registry->GetHandlerFor(handler.protocol()));
1644    window_->GetLocationBar()->UpdateContentSettingsIcons();
1645    return;
1646  }
1647
1648  // Make sure content-setting icon is turned off in case the page does
1649  // ungestured and gestured RPH calls.
1650  if (window_) {
1651    tab_content_settings->ClearPendingProtocolHandler();
1652    window_->GetLocationBar()->UpdateContentSettingsIcons();
1653  }
1654
1655  PermissionBubbleManager* bubble_manager =
1656      PermissionBubbleManager::FromWebContents(web_contents);
1657  if (PermissionBubbleManager::Enabled() && bubble_manager) {
1658    bubble_manager->AddRequest(
1659        new RegisterProtocolHandlerPermissionRequest(registry, handler,
1660                                                     url, user_gesture));
1661  } else {
1662    RegisterProtocolHandlerInfoBarDelegate::Create(
1663        InfoBarService::FromWebContents(web_contents), registry, handler);
1664  }
1665}
1666
1667void Browser::UpdatePreferredSize(WebContents* source,
1668                                  const gfx::Size& pref_size) {
1669  window_->UpdatePreferredSize(source, pref_size);
1670}
1671
1672void Browser::ResizeDueToAutoResize(WebContents* source,
1673                                    const gfx::Size& new_size) {
1674  window_->ResizeDueToAutoResize(source, new_size);
1675}
1676
1677void Browser::FindReply(WebContents* web_contents,
1678                        int request_id,
1679                        int number_of_matches,
1680                        const gfx::Rect& selection_rect,
1681                        int active_match_ordinal,
1682                        bool final_update) {
1683  FindTabHelper* find_tab_helper = FindTabHelper::FromWebContents(web_contents);
1684  if (!find_tab_helper)
1685    return;
1686
1687  find_tab_helper->HandleFindReply(request_id,
1688                                   number_of_matches,
1689                                   selection_rect,
1690                                   active_match_ordinal,
1691                                   final_update);
1692}
1693
1694void Browser::RequestToLockMouse(WebContents* web_contents,
1695                                 bool user_gesture,
1696                                 bool last_unlocked_by_target) {
1697  fullscreen_controller_->RequestToLockMouse(web_contents,
1698                                             user_gesture,
1699                                             last_unlocked_by_target);
1700}
1701
1702void Browser::LostMouseLock() {
1703  fullscreen_controller_->LostMouseLock();
1704}
1705
1706void Browser::RequestMediaAccessPermission(
1707    content::WebContents* web_contents,
1708    const content::MediaStreamRequest& request,
1709    const content::MediaResponseCallback& callback) {
1710  ::RequestMediaAccessPermission(web_contents, profile_, request, callback);
1711}
1712
1713bool Browser::RequestPpapiBrokerPermission(
1714    WebContents* web_contents,
1715    const GURL& url,
1716    const base::FilePath& plugin_path,
1717    const base::Callback<void(bool)>& callback) {
1718  PepperBrokerInfoBarDelegate::Create(web_contents, url, plugin_path, callback);
1719  return true;
1720}
1721
1722gfx::Size Browser::GetSizeForNewRenderView(WebContents* web_contents) const {
1723  // When navigating away from NTP with unpinned bookmark bar, the bookmark bar
1724  // would disappear on non-NTP pages, resulting in a bigger size for the new
1725  // render view.
1726  gfx::Size size = web_contents->GetContainerBounds().size();
1727  // Don't change render view size if bookmark bar is currently not detached,
1728  // or there's no pending entry, or navigating to a NTP page.
1729  if (size.IsEmpty() || bookmark_bar_state_ != BookmarkBar::DETACHED)
1730    return size;
1731  const NavigationEntry* pending_entry =
1732      web_contents->GetController().GetPendingEntry();
1733  if (pending_entry &&
1734      !chrome::IsNTPURL(pending_entry->GetVirtualURL(), profile_)) {
1735    size.Enlarge(
1736        0, window()->GetRenderViewHeightInsetWithDetachedBookmarkBar());
1737  }
1738  return size;
1739}
1740
1741///////////////////////////////////////////////////////////////////////////////
1742// Browser, CoreTabHelperDelegate implementation:
1743
1744void Browser::SwapTabContents(content::WebContents* old_contents,
1745                              content::WebContents* new_contents,
1746                              bool did_start_load,
1747                              bool did_finish_load) {
1748  int index = tab_strip_model_->GetIndexOfWebContents(old_contents);
1749  DCHECK_NE(TabStripModel::kNoTab, index);
1750  tab_strip_model_->ReplaceWebContentsAt(index, new_contents);
1751}
1752
1753bool Browser::CanReloadContents(content::WebContents* web_contents) const {
1754  return chrome::CanReload(this);
1755}
1756
1757bool Browser::CanSaveContents(content::WebContents* web_contents) const {
1758  return chrome::CanSavePage(this);
1759}
1760
1761///////////////////////////////////////////////////////////////////////////////
1762// Browser, SearchEngineTabHelperDelegate implementation:
1763
1764void Browser::ConfirmAddSearchProvider(TemplateURL* template_url,
1765                                       Profile* profile) {
1766  window()->ConfirmAddSearchProvider(template_url, profile);
1767}
1768
1769///////////////////////////////////////////////////////////////////////////////
1770// Browser, SearchTabHelperDelegate implementation:
1771
1772void Browser::NavigateOnThumbnailClick(const GURL& url,
1773                                       WindowOpenDisposition disposition,
1774                                       content::WebContents* source_contents) {
1775  DCHECK(source_contents);
1776  // We're guaranteed that AUTO_BOOKMARK is the right transition since this only
1777  // gets called to handle clicks in the new tab page (to navigate to most
1778  // visited item URLs) and in the search results page (to navigate to
1779  // privileged destinations (e.g. chrome://URLs)).
1780  //
1781  // TODO(kmadhusu): Page transitions to privileged destinations should be
1782  // marked as "LINK" instead of "AUTO_BOOKMARK"?
1783  chrome::NavigateParams params(this, url,
1784                                content::PAGE_TRANSITION_AUTO_BOOKMARK);
1785  params.referrer = content::Referrer();
1786  params.source_contents = source_contents;
1787  params.disposition = disposition;
1788  params.is_renderer_initiated = false;
1789  params.initiating_profile = profile_;
1790  chrome::Navigate(&params);
1791}
1792
1793void Browser::OnWebContentsInstantSupportDisabled(
1794    const content::WebContents* web_contents) {
1795  DCHECK(web_contents);
1796  if (tab_strip_model_->GetActiveWebContents() == web_contents)
1797    UpdateToolbar(false);
1798}
1799
1800OmniboxView* Browser::GetOmniboxView() {
1801  return window_->GetLocationBar()->GetOmniboxView();
1802}
1803
1804std::set<std::string> Browser::GetOpenUrls() {
1805  history::TopSites* top_sites = profile_->GetTopSites();
1806  if (!top_sites)  // NULL for Incognito profiles.
1807    return std::set<std::string>();
1808
1809  std::set<std::string> open_urls;
1810  chrome::GetOpenUrls(*tab_strip_model_, *top_sites, &open_urls);
1811  return open_urls;
1812}
1813
1814///////////////////////////////////////////////////////////////////////////////
1815// Browser, web_modal::WebContentsModalDialogManagerDelegate implementation:
1816
1817void Browser::SetWebContentsBlocked(content::WebContents* web_contents,
1818                                    bool blocked) {
1819  int index = tab_strip_model_->GetIndexOfWebContents(web_contents);
1820  if (index == TabStripModel::kNoTab) {
1821    NOTREACHED();
1822    return;
1823  }
1824  tab_strip_model_->SetTabBlocked(index, blocked);
1825  if (!blocked && tab_strip_model_->GetActiveWebContents() == web_contents)
1826    web_contents->Focus();
1827}
1828
1829web_modal::WebContentsModalDialogHost*
1830Browser::GetWebContentsModalDialogHost() {
1831  return window_->GetWebContentsModalDialogHost();
1832}
1833
1834///////////////////////////////////////////////////////////////////////////////
1835// Browser, BookmarkTabHelperDelegate implementation:
1836
1837void Browser::URLStarredChanged(content::WebContents* web_contents,
1838                                bool starred) {
1839  if (web_contents == tab_strip_model_->GetActiveWebContents())
1840    window_->SetStarredState(starred);
1841}
1842
1843///////////////////////////////////////////////////////////////////////////////
1844// Browser, ZoomObserver implementation:
1845
1846void Browser::OnZoomChanged(content::WebContents* source,
1847                            bool can_show_bubble) {
1848  if (source == tab_strip_model_->GetActiveWebContents()) {
1849    // Only show the zoom bubble for zoom changes in the active window.
1850    window_->ZoomChangedForActiveTab(can_show_bubble && window_->IsActive() &&
1851        !is_devtools());
1852  }
1853}
1854
1855///////////////////////////////////////////////////////////////////////////////
1856// Browser, ui::SelectFileDialog::Listener implementation:
1857
1858void Browser::FileSelected(const base::FilePath& path, int index,
1859                           void* params) {
1860  FileSelectedWithExtraInfo(ui::SelectedFileInfo(path, path), index, params);
1861}
1862
1863void Browser::FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file_info,
1864                                        int index,
1865                                        void* params) {
1866  profile_->set_last_selected_directory(file_info.file_path.DirName());
1867
1868  GURL url = net::FilePathToFileURL(file_info.local_path);
1869
1870#if defined(OS_CHROMEOS)
1871  drive::util::MaybeSetDriveURL(profile_, file_info.file_path, &url);
1872#endif
1873
1874  if (url.is_empty())
1875    return;
1876
1877  OpenURL(OpenURLParams(
1878      url, Referrer(), CURRENT_TAB, content::PAGE_TRANSITION_TYPED, false));
1879}
1880
1881///////////////////////////////////////////////////////////////////////////////
1882// Browser, content::NotificationObserver implementation:
1883
1884void Browser::Observe(int type,
1885                      const content::NotificationSource& source,
1886                      const content::NotificationDetails& details) {
1887  switch (type) {
1888    case chrome::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED: {
1889      chrome::UpdateCommandEnabled(
1890          this,
1891          IDC_BOOKMARK_PAGE,
1892          !chrome::ShouldRemoveBookmarkThisPageUI(profile_));
1893      chrome::UpdateCommandEnabled(
1894          this,
1895          IDC_BOOKMARK_ALL_TABS,
1896          !chrome::ShouldRemoveBookmarkOpenPagesUI(profile_));
1897
1898      if (window()->GetLocationBar())
1899        window()->GetLocationBar()->UpdatePageActions();
1900
1901      const extensions::UnloadedExtensionInfo* extension_info =
1902          content::Details<extensions::UnloadedExtensionInfo>(details).ptr();
1903
1904      // Close any tabs from the unloaded extension, unless it's terminated,
1905      // in which case let the sad tabs remain.
1906      if (extension_info->reason !=
1907          extensions::UnloadedExtensionInfo::REASON_TERMINATE) {
1908        const Extension* extension = extension_info->extension;
1909        // Iterate backwards as we may remove items while iterating.
1910        for (int i = tab_strip_model_->count() - 1; i >= 0; --i) {
1911          WebContents* web_contents = tab_strip_model_->GetWebContentsAt(i);
1912          // Two cases are handled here:
1913          // - The scheme check is for when an extension page is loaded in a
1914          //   tab, e.g. chrome-extension://id/page.html.
1915          // - The extension_app check is for apps, which can have non-extension
1916          //   schemes, e.g. https://mail.google.com if you have the Gmail app
1917          //   installed.
1918          if ((web_contents->GetURL().SchemeIs(extensions::kExtensionScheme) &&
1919               web_contents->GetURL().host() == extension->id()) ||
1920              (extensions::TabHelper::FromWebContents(
1921                   web_contents)->extension_app() == extension)) {
1922            tab_strip_model_->CloseWebContentsAt(i, TabStripModel::CLOSE_NONE);
1923          }
1924        }
1925      }
1926      break;
1927    }
1928
1929    case chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED: {
1930      Profile* profile = content::Source<Profile>(source).ptr();
1931      if (profile_->IsSameProfile(profile) && window()->GetLocationBar())
1932        window()->GetLocationBar()->InvalidatePageActions();
1933      break;
1934    }
1935
1936    case chrome::NOTIFICATION_EXTENSION_LOADED_DEPRECATED:
1937      chrome::UpdateCommandEnabled(
1938          this,
1939          IDC_BOOKMARK_PAGE,
1940          !chrome::ShouldRemoveBookmarkThisPageUI(profile_));
1941      chrome::UpdateCommandEnabled(
1942          this,
1943          IDC_BOOKMARK_ALL_TABS,
1944          !chrome::ShouldRemoveBookmarkOpenPagesUI(profile_));
1945    // fallthrough
1946    case chrome::NOTIFICATION_EXTENSION_UNINSTALLED_DEPRECATED:
1947      // During window creation on Windows we may end up calling into
1948      // SHAppBarMessage, which internally spawns a nested message loop. This
1949      // makes it possible for us to end up here before window creation has
1950      // completed, at which point window_ is NULL. See 94752 for details.
1951      if (window() && window()->GetLocationBar())
1952        window()->GetLocationBar()->UpdatePageActions();
1953      break;
1954
1955#if defined(ENABLE_THEMES)
1956    case chrome::NOTIFICATION_BROWSER_THEME_CHANGED:
1957      window()->UserChangedTheme();
1958      break;
1959#endif
1960
1961    case chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED: {
1962      WebContents* web_contents = content::Source<WebContents>(source).ptr();
1963      if (web_contents == tab_strip_model_->GetActiveWebContents()) {
1964        LocationBar* location_bar = window()->GetLocationBar();
1965        if (location_bar)
1966          location_bar->UpdateContentSettingsIcons();
1967      }
1968      break;
1969    }
1970
1971    default:
1972      NOTREACHED() << "Got a notification we didn't register for.";
1973  }
1974}
1975
1976///////////////////////////////////////////////////////////////////////////////
1977// Browser, Command and state updating (private):
1978
1979void Browser::OnDevToolsDisabledChanged() {
1980  if (profile_->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled))
1981    content::DevToolsManager::GetInstance()->CloseAllClientHosts();
1982}
1983
1984///////////////////////////////////////////////////////////////////////////////
1985// Browser, UI update coalescing and handling (private):
1986
1987void Browser::UpdateToolbar(bool should_restore_state) {
1988  window_->UpdateToolbar(should_restore_state ?
1989      tab_strip_model_->GetActiveWebContents() : NULL);
1990}
1991
1992void Browser::ScheduleUIUpdate(const WebContents* source,
1993                               unsigned changed_flags) {
1994  DCHECK(source);
1995  int index = tab_strip_model_->GetIndexOfWebContents(source);
1996  DCHECK_NE(TabStripModel::kNoTab, index);
1997
1998  // Do some synchronous updates.
1999  if (changed_flags & content::INVALIDATE_TYPE_URL &&
2000      source == tab_strip_model_->GetActiveWebContents()) {
2001    // Only update the URL for the current tab. Note that we do not update
2002    // the navigation commands since those would have already been updated
2003    // synchronously by NavigationStateChanged.
2004    UpdateToolbar(false);
2005    changed_flags &= ~content::INVALIDATE_TYPE_URL;
2006  }
2007  if (changed_flags & content::INVALIDATE_TYPE_LOAD) {
2008    // Update the loading state synchronously. This is so the throbber will
2009    // immediately start/stop, which gives a more snappy feel. We want to do
2010    // this for any tab so they start & stop quickly.
2011    tab_strip_model_->UpdateWebContentsStateAt(
2012        tab_strip_model_->GetIndexOfWebContents(source),
2013        TabStripModelObserver::LOADING_ONLY);
2014    // The status bubble needs to be updated during INVALIDATE_TYPE_LOAD too,
2015    // but we do that asynchronously by not stripping INVALIDATE_TYPE_LOAD from
2016    // changed_flags.
2017  }
2018
2019  if (changed_flags & content::INVALIDATE_TYPE_TITLE && !source->IsLoading()) {
2020    // To correctly calculate whether the title changed while not loading
2021    // we need to process the update synchronously. This state only matters for
2022    // the TabStripModel, so we notify the TabStripModel now and notify others
2023    // asynchronously.
2024    tab_strip_model_->UpdateWebContentsStateAt(
2025        tab_strip_model_->GetIndexOfWebContents(source),
2026        TabStripModelObserver::TITLE_NOT_LOADING);
2027  }
2028
2029  // If the only updates were synchronously handled above, we're done.
2030  if (changed_flags == 0)
2031    return;
2032
2033  // Save the dirty bits.
2034  scheduled_updates_[source] |= changed_flags;
2035
2036  if (!chrome_updater_factory_.HasWeakPtrs()) {
2037    // No task currently scheduled, start another.
2038    base::MessageLoop::current()->PostDelayedTask(
2039        FROM_HERE,
2040        base::Bind(&Browser::ProcessPendingUIUpdates,
2041                   chrome_updater_factory_.GetWeakPtr()),
2042        base::TimeDelta::FromMilliseconds(kUIUpdateCoalescingTimeMS));
2043  }
2044}
2045
2046void Browser::ProcessPendingUIUpdates() {
2047#ifndef NDEBUG
2048  // Validate that all tabs we have pending updates for exist. This is scary
2049  // because the pending list must be kept in sync with any detached or
2050  // deleted tabs.
2051  for (UpdateMap::const_iterator i = scheduled_updates_.begin();
2052       i != scheduled_updates_.end(); ++i) {
2053    bool found = false;
2054    for (int tab = 0; tab < tab_strip_model_->count(); tab++) {
2055      if (tab_strip_model_->GetWebContentsAt(tab) == i->first) {
2056        found = true;
2057        break;
2058      }
2059    }
2060    DCHECK(found);
2061  }
2062#endif
2063
2064  chrome_updater_factory_.InvalidateWeakPtrs();
2065
2066  for (UpdateMap::const_iterator i = scheduled_updates_.begin();
2067       i != scheduled_updates_.end(); ++i) {
2068    // Do not dereference |contents|, it may be out-of-date!
2069    const WebContents* contents = i->first;
2070    unsigned flags = i->second;
2071
2072    if (contents == tab_strip_model_->GetActiveWebContents()) {
2073      // Updates that only matter when the tab is selected go here.
2074
2075      if (flags & content::INVALIDATE_TYPE_PAGE_ACTIONS) {
2076        LocationBar* location_bar = window()->GetLocationBar();
2077        if (location_bar)
2078          location_bar->UpdatePageActions();
2079      }
2080      // Updating the URL happens synchronously in ScheduleUIUpdate.
2081      if (flags & content::INVALIDATE_TYPE_LOAD && GetStatusBubble()) {
2082        GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
2083            tab_strip_model_->GetActiveWebContents())->GetStatusText());
2084      }
2085
2086      if (flags & (content::INVALIDATE_TYPE_TAB |
2087                   content::INVALIDATE_TYPE_TITLE)) {
2088        window_->UpdateTitleBar();
2089      }
2090    }
2091
2092    // Updates that don't depend upon the selected state go here.
2093    if (flags &
2094        (content::INVALIDATE_TYPE_TAB | content::INVALIDATE_TYPE_TITLE)) {
2095      tab_strip_model_->UpdateWebContentsStateAt(
2096          tab_strip_model_->GetIndexOfWebContents(contents),
2097          TabStripModelObserver::ALL);
2098    }
2099
2100    // Update the bookmark bar. It may happen that the tab is crashed, and if
2101    // so, the bookmark bar should be hidden.
2102    if (flags & content::INVALIDATE_TYPE_TAB)
2103      UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
2104
2105    // We don't need to process INVALIDATE_STATE, since that's not visible.
2106  }
2107
2108  scheduled_updates_.clear();
2109}
2110
2111void Browser::RemoveScheduledUpdatesFor(WebContents* contents) {
2112  if (!contents)
2113    return;
2114
2115  UpdateMap::iterator i = scheduled_updates_.find(contents);
2116  if (i != scheduled_updates_.end())
2117    scheduled_updates_.erase(i);
2118}
2119
2120///////////////////////////////////////////////////////////////////////////////
2121// Browser, Getters for UI (private):
2122
2123StatusBubble* Browser::GetStatusBubble() {
2124  // In kiosk and exclusive app mode, we want to always hide the status bubble.
2125  if (chrome::IsRunningInAppMode())
2126    return NULL;
2127
2128  return window_ ? window_->GetStatusBubble() : NULL;
2129}
2130
2131///////////////////////////////////////////////////////////////////////////////
2132// Browser, Session restore functions (private):
2133
2134void Browser::SyncHistoryWithTabs(int index) {
2135  SessionService* session_service =
2136      SessionServiceFactory::GetForProfileIfExisting(profile());
2137  if (session_service) {
2138    for (int i = index; i < tab_strip_model_->count(); ++i) {
2139      WebContents* web_contents = tab_strip_model_->GetWebContentsAt(i);
2140      if (web_contents) {
2141        SessionTabHelper* session_tab_helper =
2142            SessionTabHelper::FromWebContents(web_contents);
2143        session_service->SetTabIndexInWindow(
2144            session_id(), session_tab_helper->session_id(), i);
2145        session_service->SetPinnedState(
2146            session_id(),
2147            session_tab_helper->session_id(),
2148            tab_strip_model_->IsTabPinned(i));
2149      }
2150    }
2151  }
2152}
2153
2154///////////////////////////////////////////////////////////////////////////////
2155// Browser, In-progress download termination handling (private):
2156
2157bool Browser::CanCloseWithInProgressDownloads() {
2158  // If we've prompted, we need to hear from the user before we
2159  // can close.
2160  if (cancel_download_confirmation_state_ != NOT_PROMPTED)
2161    return cancel_download_confirmation_state_ != WAITING_FOR_RESPONSE;
2162
2163  int num_downloads_blocking;
2164  Browser::DownloadClosePreventionType dialog_type =
2165      OkToCloseWithInProgressDownloads(&num_downloads_blocking);
2166  if (dialog_type == DOWNLOAD_CLOSE_OK)
2167    return true;
2168
2169  // Closing this window will kill some downloads; prompt to make sure
2170  // that's ok.
2171  cancel_download_confirmation_state_ = WAITING_FOR_RESPONSE;
2172  window_->ConfirmBrowserCloseWithPendingDownloads(
2173      num_downloads_blocking,
2174      dialog_type,
2175      false,
2176      base::Bind(&Browser::InProgressDownloadResponse,
2177                 weak_factory_.GetWeakPtr()));
2178
2179  // Return false so the browser does not close.  We'll close if the user
2180  // confirms in the dialog.
2181  return false;
2182}
2183
2184///////////////////////////////////////////////////////////////////////////////
2185// Browser, Assorted utility functions (private):
2186
2187void Browser::SetAsDelegate(WebContents* web_contents, Browser* delegate) {
2188  // WebContents...
2189  web_contents->SetDelegate(delegate);
2190
2191  // ...and all the helpers.
2192  BookmarkTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2193  WebContentsModalDialogManager::FromWebContents(web_contents)->
2194      SetDelegate(delegate);
2195  CoreTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2196  SearchEngineTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2197  SearchTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2198  ZoomController::FromWebContents(web_contents)->set_observer(delegate);
2199  TranslateTabHelper* translate_tab_helper =
2200      TranslateTabHelper::FromWebContents(web_contents);
2201  translate_tab_helper->translate_driver().set_observer(
2202      delegate ? delegate->translate_driver_observer_.get() : NULL);
2203}
2204
2205void Browser::CloseFrame() {
2206  window_->Close();
2207}
2208
2209void Browser::TabDetachedAtImpl(content::WebContents* contents,
2210                                int index,
2211                                DetachType type) {
2212  if (type == DETACH_TYPE_DETACH) {
2213    // Save the current location bar state, but only if the tab being detached
2214    // is the selected tab.  Because saving state can conditionally revert the
2215    // location bar, saving the current tab's location bar state to a
2216    // non-selected tab can corrupt both tabs.
2217    if (contents == tab_strip_model_->GetActiveWebContents()) {
2218      LocationBar* location_bar = window()->GetLocationBar();
2219      if (location_bar)
2220        location_bar->SaveStateToContents(contents);
2221    }
2222
2223    if (!tab_strip_model_->closing_all())
2224      SyncHistoryWithTabs(0);
2225  }
2226
2227  SetAsDelegate(contents, NULL);
2228  RemoveScheduledUpdatesFor(contents);
2229
2230  if (find_bar_controller_.get() && index == tab_strip_model_->active_index()) {
2231    find_bar_controller_->ChangeWebContents(NULL);
2232  }
2233
2234  // Stop observing search model changes for this tab.
2235  search_delegate_->OnTabDetached(contents);
2236
2237  for (size_t i = 0; i < interstitial_observers_.size(); i++) {
2238    if (interstitial_observers_[i]->web_contents() != contents)
2239      continue;
2240
2241    delete interstitial_observers_[i];
2242    interstitial_observers_.erase(interstitial_observers_.begin() + i);
2243    return;
2244  }
2245}
2246
2247bool Browser::ShouldShowLocationBar() const {
2248  // Tabbed browser always show a location bar.
2249  if (is_type_tabbed())
2250    return true;
2251
2252  if (is_app()) {
2253    if (CommandLine::ForCurrentProcess()->HasSwitch(
2254            switches::kEnableStreamlinedHostedApps)) {
2255      // If kEnableStreamlinedHostedApps is true, show the location bar for
2256      // bookmark apps.
2257      ExtensionService* service =
2258          extensions::ExtensionSystem::Get(profile_)->extension_service();
2259      const extensions::Extension* extension =
2260          service ? service->GetInstalledExtension(
2261                        web_app::GetExtensionIdFromApplicationName(app_name()))
2262                  : NULL;
2263      return (!extension || extension->from_bookmark()) &&
2264             app_name() != DevToolsWindow::kDevToolsApp;
2265    } else {
2266      return false;
2267    }
2268  }
2269
2270  // Trusted app windows and system windows never show a location bar.
2271  return !is_trusted_source();
2272}
2273
2274bool Browser::SupportsWindowFeatureImpl(WindowFeature feature,
2275                                        bool check_fullscreen) const {
2276  bool hide_ui_for_fullscreen = check_fullscreen && ShouldHideUIForFullscreen();
2277
2278  unsigned int features = FEATURE_INFOBAR | FEATURE_DOWNLOADSHELF;
2279
2280  if (is_type_tabbed())
2281    features |= FEATURE_BOOKMARKBAR;
2282
2283  if (!hide_ui_for_fullscreen) {
2284    if (!is_type_tabbed())
2285      features |= FEATURE_TITLEBAR;
2286
2287    if (is_type_tabbed())
2288      features |= FEATURE_TABSTRIP;
2289
2290    if (is_type_tabbed())
2291      features |= FEATURE_TOOLBAR;
2292
2293    if (ShouldShowLocationBar())
2294      features |= FEATURE_LOCATIONBAR;
2295  }
2296  return !!(features & feature);
2297}
2298
2299void Browser::UpdateBookmarkBarState(BookmarkBarStateChangeReason reason) {
2300  BookmarkBar::State state;
2301  // The bookmark bar is always hidden for Guest Sessions and in fullscreen
2302  // mode, unless on the new tab page.
2303  if (profile_->IsGuestSession()) {
2304    state = BookmarkBar::HIDDEN;
2305  } else if (browser_defaults::bookmarks_enabled &&
2306      profile_->GetPrefs()->GetBoolean(prefs::kShowBookmarkBar) &&
2307      !ShouldHideUIForFullscreen()) {
2308    state = BookmarkBar::SHOW;
2309  } else {
2310    WebContents* web_contents = tab_strip_model_->GetActiveWebContents();
2311    BookmarkTabHelper* bookmark_tab_helper =
2312        web_contents ? BookmarkTabHelper::FromWebContents(web_contents) : NULL;
2313    if (bookmark_tab_helper && bookmark_tab_helper->ShouldShowBookmarkBar())
2314      state = BookmarkBar::DETACHED;
2315    else
2316      state = BookmarkBar::HIDDEN;
2317  }
2318
2319  if (state == bookmark_bar_state_)
2320    return;
2321
2322  bookmark_bar_state_ = state;
2323
2324  if (!window_)
2325    return;  // This is called from the constructor when window_ is NULL.
2326
2327  if (reason == BOOKMARK_BAR_STATE_CHANGE_TAB_SWITCH) {
2328    // Don't notify BrowserWindow on a tab switch as at the time this is invoked
2329    // BrowserWindow hasn't yet switched tabs. The BrowserWindow implementations
2330    // end up querying state once they process the tab switch.
2331    return;
2332  }
2333
2334  bool shouldAnimate = reason == BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE;
2335  window_->BookmarkBarStateChanged(shouldAnimate ?
2336      BookmarkBar::ANIMATE_STATE_CHANGE :
2337      BookmarkBar::DONT_ANIMATE_STATE_CHANGE);
2338}
2339
2340bool Browser::ShouldHideUIForFullscreen() const {
2341  // Windows and GTK remove the top controls in fullscreen, but Mac and Ash
2342  // keep the controls in a slide-down panel.
2343  return window_ && window_->ShouldHideUIForFullscreen();
2344}
2345
2346bool Browser::MaybeCreateBackgroundContents(
2347    int route_id,
2348    WebContents* opener_web_contents,
2349    const base::string16& frame_name,
2350    const GURL& target_url,
2351    const std::string& partition_id,
2352    content::SessionStorageNamespace* session_storage_namespace) {
2353  GURL opener_url = opener_web_contents->GetURL();
2354  ExtensionService* extensions_service =
2355      extensions::ExtensionSystem::Get(profile_)->extension_service();
2356
2357  if (!opener_url.is_valid() ||
2358      frame_name.empty() ||
2359      !extensions_service ||
2360      !extensions_service->is_ready())
2361    return false;
2362
2363  // Only hosted apps have web extents, so this ensures that only hosted apps
2364  // can create BackgroundContents. We don't have to check for background
2365  // permission as that is checked in RenderMessageFilter when the CreateWindow
2366  // message is processed.
2367  const Extension* extension =
2368      extensions_service->extensions()->GetHostedAppByURL(opener_url);
2369  if (!extension)
2370    return false;
2371
2372  // No BackgroundContents allowed if BackgroundContentsService doesn't exist.
2373  BackgroundContentsService* service =
2374      BackgroundContentsServiceFactory::GetForProfile(profile_);
2375  if (!service)
2376    return false;
2377
2378  // Ensure that we're trying to open this from the extension's process.
2379  SiteInstance* opener_site_instance = opener_web_contents->GetSiteInstance();
2380  extensions::ProcessMap* process_map = extensions::ProcessMap::Get(profile_);
2381  if (!opener_site_instance->GetProcess() ||
2382      !process_map->Contains(
2383          extension->id(), opener_site_instance->GetProcess()->GetID())) {
2384    return false;
2385  }
2386
2387  // Only allow a single background contents per app.
2388  bool allow_js_access = extensions::BackgroundInfo::AllowJSAccess(extension);
2389  BackgroundContents* existing =
2390      service->GetAppBackgroundContents(base::ASCIIToUTF16(extension->id()));
2391  if (existing) {
2392    // For non-scriptable background contents, ignore the request altogether,
2393    // (returning true, so that a regular WebContents isn't created either).
2394    if (!allow_js_access)
2395      return true;
2396    // For scriptable background pages, if one already exists, close it (even
2397    // if it was specified in the manifest).
2398    delete existing;
2399  }
2400
2401  // If script access is not allowed, create the the background contents in a
2402  // new SiteInstance, so that a separate process is used.
2403  scoped_refptr<content::SiteInstance> site_instance =
2404      allow_js_access ?
2405      opener_site_instance :
2406      content::SiteInstance::Create(opener_web_contents->GetBrowserContext());
2407
2408  // Passed all the checks, so this should be created as a BackgroundContents.
2409  BackgroundContents* contents =
2410      service->CreateBackgroundContents(site_instance.get(),
2411                                        route_id,
2412                                        profile_,
2413                                        frame_name,
2414                                        base::ASCIIToUTF16(extension->id()),
2415                                        partition_id,
2416                                        session_storage_namespace);
2417
2418  // When a separate process is used, the original renderer cannot access the
2419  // new window later, thus we need to navigate the window now.
2420  if (contents && !allow_js_access) {
2421    contents->web_contents()->GetController().LoadURL(
2422        target_url,
2423        content::Referrer(),
2424        content::PAGE_TRANSITION_LINK,
2425        std::string());  // No extra headers.
2426  }
2427
2428  return contents != NULL;
2429}
2430