browser.cc revision 3551c9c881056c480085172ff9840cab31610854
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/bookmarks/bookmark_model.h"
36#include "chrome/browser/bookmarks/bookmark_utils.h"
37#include "chrome/browser/browser_process.h"
38#include "chrome/browser/browser_shutdown.h"
39#include "chrome/browser/character_encoding.h"
40#include "chrome/browser/chrome_notification_types.h"
41#include "chrome/browser/chrome_page_zoom.h"
42#include "chrome/browser/content_settings/host_content_settings_map.h"
43#include "chrome/browser/content_settings/tab_specific_content_settings.h"
44#include "chrome/browser/custom_handlers/protocol_handler_registry.h"
45#include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
46#include "chrome/browser/custom_handlers/register_protocol_handler_infobar_delegate.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_prefs.h"
55#include "chrome/browser/extensions/extension_service.h"
56#include "chrome/browser/extensions/extension_system.h"
57#include "chrome/browser/extensions/tab_helper.h"
58#include "chrome/browser/favicon/favicon_tab_helper.h"
59#include "chrome/browser/file_select_helper.h"
60#include "chrome/browser/first_run/first_run.h"
61#include "chrome/browser/google/google_url_tracker.h"
62#include "chrome/browser/infobars/infobar_service.h"
63#include "chrome/browser/infobars/simple_alert_infobar_delegate.h"
64#include "chrome/browser/lifetime/application_lifetime.h"
65#include "chrome/browser/media/media_capture_devices_dispatcher.h"
66#include "chrome/browser/notifications/notification_ui_manager.h"
67#include "chrome/browser/pepper_broker_infobar_delegate.h"
68#include "chrome/browser/prefs/incognito_mode_prefs.h"
69#include "chrome/browser/profiles/profile.h"
70#include "chrome/browser/profiles/profile_destroyer.h"
71#include "chrome/browser/profiles/profile_manager.h"
72#include "chrome/browser/profiles/profile_metrics.h"
73#include "chrome/browser/repost_form_warning_controller.h"
74#include "chrome/browser/search/search.h"
75#include "chrome/browser/sessions/session_service.h"
76#include "chrome/browser/sessions/session_service_factory.h"
77#include "chrome/browser/sessions/session_tab_helper.h"
78#include "chrome/browser/sessions/session_types.h"
79#include "chrome/browser/sessions/tab_restore_service.h"
80#include "chrome/browser/sessions/tab_restore_service_factory.h"
81#include "chrome/browser/sync/profile_sync_service.h"
82#include "chrome/browser/sync/profile_sync_service_factory.h"
83#include "chrome/browser/sync/sync_ui_util.h"
84#include "chrome/browser/tab_contents/background_contents.h"
85#include "chrome/browser/tab_contents/retargeting_details.h"
86#include "chrome/browser/tab_contents/tab_util.h"
87#include "chrome/browser/themes/theme_service.h"
88#include "chrome/browser/themes/theme_service_factory.h"
89#include "chrome/browser/ui/app_modal_dialogs/javascript_dialog_manager.h"
90#include "chrome/browser/ui/autofill/tab_autofill_manager_delegate.h"
91#include "chrome/browser/ui/blocked_content/blocked_content_tab_helper.h"
92#include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
93#include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
94#include "chrome/browser/ui/browser_command_controller.h"
95#include "chrome/browser/ui/browser_commands.h"
96#include "chrome/browser/ui/browser_content_setting_bubble_model_delegate.h"
97#include "chrome/browser/ui/browser_dialogs.h"
98#include "chrome/browser/ui/browser_finder.h"
99#include "chrome/browser/ui/browser_instant_controller.h"
100#include "chrome/browser/ui/browser_iterator.h"
101#include "chrome/browser/ui/browser_list.h"
102#include "chrome/browser/ui/browser_navigator.h"
103#include "chrome/browser/ui/browser_tab_contents.h"
104#include "chrome/browser/ui/browser_tab_restore_service_delegate.h"
105#include "chrome/browser/ui/browser_tab_strip_model_delegate.h"
106#include "chrome/browser/ui/browser_tabstrip.h"
107#include "chrome/browser/ui/browser_toolbar_model_delegate.h"
108#include "chrome/browser/ui/browser_ui_prefs.h"
109#include "chrome/browser/ui/browser_window.h"
110#include "chrome/browser/ui/chrome_pages.h"
111#include "chrome/browser/ui/chrome_select_file_policy.h"
112#include "chrome/browser/ui/fast_unload_controller.h"
113#include "chrome/browser/ui/find_bar/find_bar.h"
114#include "chrome/browser/ui/find_bar/find_bar_controller.h"
115#include "chrome/browser/ui/find_bar/find_tab_helper.h"
116#include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
117#include "chrome/browser/ui/global_error/global_error.h"
118#include "chrome/browser/ui/global_error/global_error_service.h"
119#include "chrome/browser/ui/global_error/global_error_service_factory.h"
120#include "chrome/browser/ui/omnibox/location_bar.h"
121#include "chrome/browser/ui/search/search_delegate.h"
122#include "chrome/browser/ui/search/search_model.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_modal_confirm_dialog.h"
129#include "chrome/browser/ui/tabs/dock_info.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/toolbar/toolbar_model_impl.h"
133#include "chrome/browser/ui/unload_controller.h"
134#include "chrome/browser/ui/web_applications/web_app_ui.h"
135#include "chrome/browser/ui/webui/signin/login_ui_service.h"
136#include "chrome/browser/ui/webui/signin/login_ui_service_factory.h"
137#include "chrome/browser/ui/window_sizer/window_sizer.h"
138#include "chrome/browser/ui/zoom/zoom_controller.h"
139#include "chrome/browser/upgrade_detector.h"
140#include "chrome/browser/web_applications/web_app.h"
141#include "chrome/common/chrome_constants.h"
142#include "chrome/common/chrome_switches.h"
143#include "chrome/common/custom_handlers/protocol_handler.h"
144#include "chrome/common/extensions/background_info.h"
145#include "chrome/common/extensions/extension.h"
146#include "chrome/common/extensions/extension_constants.h"
147#include "chrome/common/net/url_fixer_upper.h"
148#include "chrome/common/pref_names.h"
149#include "chrome/common/profiling.h"
150#include "chrome/common/search_types.h"
151#include "chrome/common/startup_metric_utils.h"
152#include "chrome/common/url_constants.h"
153#include "components/web_modal/web_contents_modal_dialog_manager.h"
154#include "content/public/browser/devtools_manager.h"
155#include "content/public/browser/download_item.h"
156#include "content/public/browser/download_manager.h"
157#include "content/public/browser/interstitial_page.h"
158#include "content/public/browser/invalidate_type.h"
159#include "content/public/browser/navigation_controller.h"
160#include "content/public/browser/navigation_entry.h"
161#include "content/public/browser/notification_details.h"
162#include "content/public/browser/notification_service.h"
163#include "content/public/browser/plugin_service.h"
164#include "content/public/browser/render_process_host.h"
165#include "content/public/browser/render_view_host.h"
166#include "content/public/browser/site_instance.h"
167#include "content/public/browser/user_metrics.h"
168#include "content/public/browser/web_contents.h"
169#include "content/public/browser/web_contents_view.h"
170#include "content/public/common/content_switches.h"
171#include "content/public/common/page_zoom.h"
172#include "content/public/common/renderer_preferences.h"
173#include "content/public/common/webplugininfo.h"
174#include "extensions/common/constants.h"
175#include "grit/chromium_strings.h"
176#include "grit/generated_resources.h"
177#include "grit/locale_settings.h"
178#include "grit/theme_resources.h"
179#include "net/base/net_util.h"
180#include "net/base/registry_controlled_domains/registry_controlled_domain.h"
181#include "net/cookies/cookie_monster.h"
182#include "net/url_request/url_request_context.h"
183#include "third_party/WebKit/public/web/WebWindowFeatures.h"
184#include "ui/base/l10n/l10n_util.h"
185#include "ui/base/window_open_disposition.h"
186#include "ui/gfx/point.h"
187#include "ui/shell_dialogs/selected_file_info.h"
188
189#if defined(OS_WIN)
190#include "base/win/metro.h"
191#include "chrome/browser/shell_integration.h"
192#include "chrome/browser/ssl/ssl_error_info.h"
193#include "chrome/browser/task_manager/task_manager.h"
194#include "chrome/browser/ui/view_ids.h"
195#include "components/autofill/core/browser/autofill_ie_toolbar_import_win.h"
196#include "ui/base/win/shell.h"
197#include "ui/views/win/hwnd_util.h"
198#endif  // OS_WIN
199
200#if defined(OS_CHROMEOS)
201#include "chrome/browser/chromeos/drive/file_system_util.h"
202#endif
203
204#if defined(USE_ASH)
205#include "ash/ash_switches.h"
206#endif
207
208using base::TimeDelta;
209using content::NativeWebKeyboardEvent;
210using content::NavigationController;
211using content::NavigationEntry;
212using content::OpenURLParams;
213using content::PluginService;
214using content::Referrer;
215using content::SiteInstance;
216using content::UserMetricsAction;
217using content::WebContents;
218using extensions::Extension;
219using ui::WebDialogDelegate;
220using web_modal::WebContentsModalDialogManager;
221using WebKit::WebWindowFeatures;
222
223///////////////////////////////////////////////////////////////////////////////
224
225namespace {
226
227// The URL to be loaded to display the "Report a broken page" form.
228const char kBrokenPageUrl[] =
229    "https://www.google.com/support/chrome/bin/request.py?contact_type="
230    "broken_website&format=inproduct&p.page_title=$1&p.page_url=$2";
231
232// How long we wait before updating the browser chrome while loading a page.
233const int kUIUpdateCoalescingTimeMS = 200;
234
235BrowserWindow* CreateBrowserWindow(Browser* browser) {
236  return BrowserWindow::CreateBrowserWindow(browser);
237}
238
239// Is the fast tab unload experiment enabled?
240bool IsFastTabUnloadEnabled() {
241  return CommandLine::ForCurrentProcess()->HasSwitch(
242        switches::kEnableFastUnload);
243}
244
245}  // namespace
246
247////////////////////////////////////////////////////////////////////////////////
248// Browser, CreateParams:
249
250Browser::CreateParams::CreateParams(Profile* profile,
251                                    chrome::HostDesktopType host_desktop_type)
252    : type(TYPE_TABBED),
253      profile(profile),
254      host_desktop_type(host_desktop_type),
255      app_type(APP_TYPE_HOST),
256      initial_show_state(ui::SHOW_STATE_DEFAULT),
257      is_session_restore(false),
258      window(NULL) {
259}
260
261Browser::CreateParams::CreateParams(Type type,
262                                    Profile* profile,
263                                    chrome::HostDesktopType host_desktop_type)
264    : type(type),
265      profile(profile),
266      host_desktop_type(host_desktop_type),
267      app_type(APP_TYPE_HOST),
268      initial_show_state(ui::SHOW_STATE_DEFAULT),
269      is_session_restore(false),
270      window(NULL) {
271}
272
273// static
274Browser::CreateParams Browser::CreateParams::CreateForApp(
275    Type type,
276    const std::string& app_name,
277    const gfx::Rect& window_bounds,
278    Profile* profile,
279    chrome::HostDesktopType host_desktop_type) {
280  DCHECK(type != TYPE_TABBED);
281  DCHECK(!app_name.empty());
282
283  CreateParams params(type, profile, host_desktop_type);
284  params.app_name = app_name;
285  params.app_type = APP_TYPE_CHILD;
286  params.initial_bounds = window_bounds;
287
288  return params;
289}
290
291// static
292Browser::CreateParams Browser::CreateParams::CreateForDevTools(
293    Profile* profile,
294    chrome::HostDesktopType host_desktop_type) {
295  CreateParams params(TYPE_POPUP, profile, host_desktop_type);
296  params.app_name = DevToolsWindow::kDevToolsApp;
297  return params;
298}
299
300////////////////////////////////////////////////////////////////////////////////
301// Browser, InterstitialObserver:
302
303class Browser::InterstitialObserver : public content::WebContentsObserver {
304 public:
305  InterstitialObserver(Browser* browser, content::WebContents* web_contents)
306      : WebContentsObserver(web_contents),
307        browser_(browser) {
308  }
309
310  using content::WebContentsObserver::web_contents;
311
312  virtual void DidAttachInterstitialPage() OVERRIDE {
313    browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
314  }
315
316  virtual void DidDetachInterstitialPage() OVERRIDE {
317    browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
318  }
319
320 private:
321  Browser* browser_;
322
323  DISALLOW_COPY_AND_ASSIGN(InterstitialObserver);
324};
325
326///////////////////////////////////////////////////////////////////////////////
327// Browser, Constructors, Creation, Showing:
328
329Browser::Browser(const CreateParams& params)
330    : type_(params.type),
331      profile_(params.profile),
332      window_(NULL),
333      tab_strip_model_delegate_(new chrome::BrowserTabStripModelDelegate(this)),
334      tab_strip_model_(new TabStripModel(tab_strip_model_delegate_.get(),
335                                         params.profile)),
336      app_name_(params.app_name),
337      app_type_(params.app_type),
338      chrome_updater_factory_(this),
339      cancel_download_confirmation_state_(NOT_PROMPTED),
340      override_bounds_(params.initial_bounds),
341      initial_show_state_(params.initial_show_state),
342      is_session_restore_(params.is_session_restore),
343      host_desktop_type_(params.host_desktop_type),
344      weak_factory_(this),
345      content_setting_bubble_model_delegate_(
346          new BrowserContentSettingBubbleModelDelegate(this)),
347      toolbar_model_delegate_(new BrowserToolbarModelDelegate(this)),
348      tab_restore_service_delegate_(new BrowserTabRestoreServiceDelegate(this)),
349      synced_window_delegate_(new BrowserSyncedWindowDelegate(this)),
350      bookmark_bar_state_(BookmarkBar::HIDDEN),
351      command_controller_(new chrome::BrowserCommandController(
352          this, g_browser_process->profile_manager())),
353      window_has_shown_(false) {
354  // If this causes a crash then a window is being opened using a profile type
355  // that is disallowed by policy. The crash prevents the disabled window type
356  // from opening at all, but the path that triggered it should be fixed.
357  CHECK(IncognitoModePrefs::CanOpenBrowser(profile_));
358
359  // TODO(jeremy): Move to initializer list once flag is removed.
360  if (IsFastTabUnloadEnabled())
361    fast_unload_controller_.reset(new chrome::FastUnloadController(this));
362  else
363    unload_controller_.reset(new chrome::UnloadController(this));
364
365  if (!app_name_.empty())
366    chrome::RegisterAppPrefs(app_name_, profile_);
367  tab_strip_model_->AddObserver(this);
368
369  toolbar_model_.reset(new ToolbarModelImpl(toolbar_model_delegate_.get()));
370  search_model_.reset(new SearchModel());
371  search_delegate_.reset(new SearchDelegate(search_model_.get()));
372
373  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
374                 content::Source<Profile>(profile_->GetOriginalProfile()));
375  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
376                 content::Source<Profile>(profile_->GetOriginalProfile()));
377  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNINSTALLED,
378                 content::Source<Profile>(profile_->GetOriginalProfile()));
379  registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
380                 content::NotificationService::AllSources());
381#if defined(ENABLE_THEMES)
382  registrar_.Add(
383      this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
384      content::Source<ThemeService>(
385          ThemeServiceFactory::GetForProfile(profile_)));
386#endif
387  registrar_.Add(this, chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED,
388                 content::NotificationService::AllSources());
389
390  profile_pref_registrar_.Init(profile_->GetPrefs());
391  profile_pref_registrar_.Add(
392      prefs::kDevToolsDisabled,
393      base::Bind(&Browser::OnDevToolsDisabledChanged, base::Unretained(this)));
394  profile_pref_registrar_.Add(
395      prefs::kShowBookmarkBar,
396      base::Bind(&Browser::UpdateBookmarkBarState, base::Unretained(this),
397                 BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE));
398
399  BrowserList::AddBrowser(this);
400
401  // NOTE: These prefs all need to be explicitly destroyed in the destructor
402  // or you'll get a nasty surprise when you run the incognito tests.
403  encoding_auto_detect_.Init(prefs::kWebKitUsesUniversalDetector,
404                             profile_->GetPrefs());
405
406  if (chrome::IsInstantExtendedAPIEnabled() && is_type_tabbed())
407    instant_controller_.reset(new BrowserInstantController(this));
408
409  UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_INIT);
410
411  ProfileMetrics::LogProfileLaunch(profile_);
412
413  window_ = params.window ? params.window : CreateBrowserWindow(this);
414
415  // TODO(beng): move to BrowserFrameWin.
416#if defined(OS_WIN)
417  // Set the app user model id for this application to that of the application
418  // name.  See http://crbug.com/7028.
419  ui::win::SetAppIdForWindow(
420      is_app() ?
421      ShellIntegration::GetAppModelIdForProfile(UTF8ToWide(app_name_),
422                                                profile_->GetPath()) :
423      ShellIntegration::GetChromiumModelIdForProfile(profile_->GetPath()),
424      views::HWNDForNativeWindow(window()->GetNativeWindow()));
425#endif
426
427  // Create the extension window controller before sending notifications.
428  extension_window_controller_.reset(
429      new BrowserExtensionWindowController(this));
430
431  // TODO(beng): Move BrowserList::AddBrowser() to the end of this function and
432  //             replace uses of this with BL's notifications.
433  content::NotificationService::current()->Notify(
434      chrome::NOTIFICATION_BROWSER_WINDOW_READY,
435      content::Source<Browser>(this),
436      content::NotificationService::NoDetails());
437
438  // TODO(beng): move to ChromeBrowserMain:
439  if (first_run::ShouldDoPersonalDataManagerFirstRun()) {
440#if defined(OS_WIN)
441    // Notify PDM that this is a first run.
442    ImportAutofillDataWin(
443        autofill::PersonalDataManagerFactory::GetForProfile(profile_));
444#endif  // defined(OS_WIN)
445  }
446
447  fullscreen_controller_.reset(new FullscreenController(this));
448}
449
450Browser::~Browser() {
451  // The tab strip should not have any tabs at this point.
452  if (!browser_shutdown::ShuttingDownWithoutClosingBrowsers())
453    DCHECK(tab_strip_model_->empty());
454
455  tab_strip_model_->RemoveObserver(this);
456
457  // Destroy the BrowserCommandController before removing the browser, so that
458  // it doesn't act on any notifications that are sent as a result of removing
459  // the browser.
460  command_controller_.reset();
461  BrowserList::RemoveBrowser(this);
462
463  SessionService* session_service =
464      SessionServiceFactory::GetForProfile(profile_);
465  if (session_service)
466    session_service->WindowClosed(session_id_);
467
468  TabRestoreService* tab_restore_service =
469      TabRestoreServiceFactory::GetForProfile(profile());
470  if (tab_restore_service)
471    tab_restore_service->BrowserClosed(tab_restore_service_delegate());
472
473#if !defined(OS_MACOSX)
474  if (!chrome::GetTotalBrowserCountForProfile(profile_)) {
475    // We're the last browser window with this profile. We need to nuke the
476    // TabRestoreService, which will start the shutdown of the
477    // NavigationControllers and allow for proper shutdown. If we don't do this
478    // chrome won't shutdown cleanly, and may end up crashing when some
479    // thread tries to use the IO thread (or another thread) that is no longer
480    // valid.
481    // This isn't a valid assumption for Mac OS, as it stays running after
482    // the last browser has closed. The Mac equivalent is in its app
483    // controller.
484    TabRestoreServiceFactory::ResetForProfile(profile_);
485  }
486#endif
487
488  profile_pref_registrar_.RemoveAll();
489
490  encoding_auto_detect_.Destroy();
491
492  // Destroy BrowserExtensionWindowController before the incognito profile
493  // is destroyed to make sure the chrome.windows.onRemoved event is sent.
494  extension_window_controller_.reset();
495
496  // Destroy BrowserInstantController before the incongnito profile is destroyed
497  // because the InstantController destructor depends on this profile.
498  instant_controller_.reset();
499
500  if (profile_->IsOffTheRecord() &&
501      !BrowserList::IsOffTheRecordSessionActiveForProfile(profile_)) {
502    // An incognito profile is no longer needed, this indirectly frees
503    // its cache and cookies once it gets destroyed at the appropriate time.
504    ProfileDestroyer::DestroyProfileWhenAppropriate(profile_);
505  }
506
507  // There may be pending file dialogs, we need to tell them that we've gone
508  // away so they don't try and call back to us.
509  if (select_file_dialog_.get())
510    select_file_dialog_->ListenerDestroyed();
511}
512
513///////////////////////////////////////////////////////////////////////////////
514// Getters & Setters
515
516FindBarController* Browser::GetFindBarController() {
517  if (!find_bar_controller_.get()) {
518    FindBar* find_bar = window_->CreateFindBar();
519    find_bar_controller_.reset(new FindBarController(find_bar));
520    find_bar->SetFindBarController(find_bar_controller_.get());
521    find_bar_controller_->ChangeWebContents(
522        tab_strip_model_->GetActiveWebContents());
523    find_bar_controller_->find_bar()->MoveWindowIfNecessary(gfx::Rect(), true);
524  }
525  return find_bar_controller_.get();
526}
527
528bool Browser::HasFindBarController() const {
529  return find_bar_controller_.get() != NULL;
530}
531
532bool Browser::is_app() const {
533  return !app_name_.empty();
534}
535
536bool Browser::is_devtools() const {
537  return app_name_ == DevToolsWindow::kDevToolsApp;
538}
539
540///////////////////////////////////////////////////////////////////////////////
541// Browser, State Storage and Retrieval for UI:
542
543gfx::Image Browser::GetCurrentPageIcon() const {
544  WebContents* web_contents = tab_strip_model_->GetActiveWebContents();
545  // |web_contents| can be NULL since GetCurrentPageIcon() is called by the
546  // window during the window's creation (before tabs have been added).
547  FaviconTabHelper* favicon_tab_helper =
548      web_contents ? FaviconTabHelper::FromWebContents(web_contents) : NULL;
549  return favicon_tab_helper ? favicon_tab_helper->GetFavicon() : gfx::Image();
550}
551
552string16 Browser::GetWindowTitleForCurrentTab() const {
553  WebContents* contents = tab_strip_model_->GetActiveWebContents();
554  string16 title;
555
556  // |contents| can be NULL because GetWindowTitleForCurrentTab is called by the
557  // window during the window's creation (before tabs have been added).
558  if (contents) {
559    title = contents->GetTitle();
560    FormatTitleForDisplay(&title);
561  }
562  if (title.empty())
563    title = CoreTabHelper::GetDefaultTitle();
564
565#if defined(OS_MACOSX)
566  // On Mac, we don't want to suffix the page title with
567  // the application name.
568  return title;
569#elif defined(USE_ASH)
570  // On Ash, we don't want to suffix the page title with the application name,
571  // but on Windows, where USE_ASH can also be true, we still want the prefix
572  // on desktop.
573  if (host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH)
574    return title;
575#endif
576  // Don't append the app name to window titles on app frames and app popups
577  return is_app() ?
578      title :
579      l10n_util::GetStringFUTF16(IDS_BROWSER_WINDOW_TITLE_FORMAT, title);
580}
581
582// static
583void Browser::FormatTitleForDisplay(string16* title) {
584  size_t current_index = 0;
585  size_t match_index;
586  while ((match_index = title->find(L'\n', current_index)) != string16::npos) {
587    title->replace(match_index, 1, string16());
588    current_index = match_index;
589  }
590}
591
592///////////////////////////////////////////////////////////////////////////////
593// Browser, OnBeforeUnload handling:
594
595bool Browser::ShouldCloseWindow() {
596  if (!CanCloseWithInProgressDownloads())
597    return false;
598
599  if (IsFastTabUnloadEnabled())
600    return fast_unload_controller_->ShouldCloseWindow();
601  return unload_controller_->ShouldCloseWindow();
602}
603
604bool Browser::CallBeforeUnloadHandlers(
605    const base::Callback<void(bool)>& on_close_confirmed) {
606  cancel_download_confirmation_state_ = RESPONSE_RECEIVED;
607  if (IsFastTabUnloadEnabled()) {
608    return fast_unload_controller_->CallBeforeUnloadHandlers(
609        on_close_confirmed);
610  }
611  return unload_controller_->CallBeforeUnloadHandlers(on_close_confirmed);
612}
613
614void Browser::ResetBeforeUnloadHandlers() {
615  cancel_download_confirmation_state_ = NOT_PROMPTED;
616  if (IsFastTabUnloadEnabled())
617    fast_unload_controller_->ResetBeforeUnloadHandlers();
618  else
619    unload_controller_->ResetBeforeUnloadHandlers();
620}
621
622bool Browser::HasCompletedUnloadProcessing() const {
623  DCHECK(IsFastTabUnloadEnabled());
624  return fast_unload_controller_->HasCompletedUnloadProcessing();
625}
626
627bool Browser::IsAttemptingToCloseBrowser() const {
628  if (IsFastTabUnloadEnabled())
629    return fast_unload_controller_->is_attempting_to_close_browser();
630  return unload_controller_->is_attempting_to_close_browser();
631}
632
633void Browser::OnWindowClosing() {
634  if (!ShouldCloseWindow())
635    return;
636
637  // Application should shutdown on last window close if the user is explicitly
638  // trying to quit, or if there is nothing keeping the browser alive (such as
639  // AppController on the Mac, or BackgroundContentsService for background
640  // pages).
641  bool should_quit_if_last_browser =
642      browser_shutdown::IsTryingToQuit() || !chrome::WillKeepAlive();
643
644  if (should_quit_if_last_browser &&
645      BrowserList::GetInstance(host_desktop_type_)->size() == 1) {
646    browser_shutdown::OnShutdownStarting(browser_shutdown::WINDOW_CLOSE);
647  }
648
649  // Don't use GetForProfileIfExisting here, we want to force creation of the
650  // session service so that user can restore what was open.
651  SessionService* session_service =
652      SessionServiceFactory::GetForProfile(profile());
653  if (session_service)
654    session_service->WindowClosing(session_id());
655
656  TabRestoreService* tab_restore_service =
657      TabRestoreServiceFactory::GetForProfile(profile());
658
659#if defined(USE_AURA)
660  if (tab_restore_service && is_app())
661    tab_restore_service->BrowserClosing(tab_restore_service_delegate());
662#endif
663
664  if (tab_restore_service && is_type_tabbed() && tab_strip_model_->count())
665    tab_restore_service->BrowserClosing(tab_restore_service_delegate());
666
667  // TODO(sky): convert session/tab restore to use notification.
668  content::NotificationService::current()->Notify(
669      chrome::NOTIFICATION_BROWSER_CLOSING,
670      content::Source<Browser>(this),
671      content::NotificationService::NoDetails());
672
673  if (!IsFastTabUnloadEnabled())
674    tab_strip_model_->CloseAllTabs();
675}
676
677////////////////////////////////////////////////////////////////////////////////
678// In-progress download termination handling:
679
680void Browser::InProgressDownloadResponse(bool cancel_downloads) {
681  if (cancel_downloads) {
682    cancel_download_confirmation_state_ = RESPONSE_RECEIVED;
683    chrome::CloseWindow(this);
684    return;
685  }
686
687  // Sets the confirmation state to NOT_PROMPTED so that if the user tries to
688  // close again we'll show the warning again.
689  cancel_download_confirmation_state_ = NOT_PROMPTED;
690
691  // Show the download page so the user can figure-out what downloads are still
692  // in-progress.
693  chrome::ShowDownloads(this);
694}
695
696Browser::DownloadClosePreventionType Browser::OkToCloseWithInProgressDownloads(
697    int* num_downloads_blocking) const {
698  DCHECK(num_downloads_blocking);
699  *num_downloads_blocking = 0;
700
701  // If we're not running a full browser process with a profile manager
702  // (testing), it's ok to close the browser.
703  if (!g_browser_process->profile_manager())
704    return DOWNLOAD_CLOSE_OK;
705
706  int total_download_count = DownloadService::DownloadCountAllProfiles();
707  if (total_download_count == 0)
708    return DOWNLOAD_CLOSE_OK;   // No downloads; can definitely close.
709
710  // Figure out how many windows are open total, and associated with this
711  // profile, that are relevant for the ok-to-close decision.
712  int profile_window_count = 0;
713  int total_window_count = 0;
714  for (chrome::BrowserIterator it; !it.done(); it.Next()) {
715    // Don't count this browser window or any other in the process of closing.
716    Browser* const browser = *it;
717    // Window closing may be delayed, and windows that are in the process of
718    // closing don't count against our totals.
719    if (browser == this || browser->IsAttemptingToCloseBrowser())
720      continue;
721
722    if (it->profile() == profile())
723      profile_window_count++;
724    total_window_count++;
725  }
726
727  // If there aren't any other windows, we're at browser shutdown,
728  // which would cancel all current downloads.
729  if (total_window_count == 0) {
730    *num_downloads_blocking = total_download_count;
731    return DOWNLOAD_CLOSE_BROWSER_SHUTDOWN;
732  }
733
734  // If there aren't any other windows on our profile, and we're an incognito
735  // profile, and there are downloads associated with that profile,
736  // those downloads would be cancelled by our window (-> profile) close.
737  DownloadService* download_service =
738      DownloadServiceFactory::GetForBrowserContext(profile());
739  if ((profile_window_count == 0) &&
740      (download_service->DownloadCount() > 0) &&
741      profile()->IsOffTheRecord()) {
742    *num_downloads_blocking = download_service->DownloadCount();
743    return DOWNLOAD_CLOSE_LAST_WINDOW_IN_INCOGNITO_PROFILE;
744  }
745
746  // Those are the only conditions under which we will block shutdown.
747  return DOWNLOAD_CLOSE_OK;
748}
749
750////////////////////////////////////////////////////////////////////////////////
751// Browser, Tab adding/showing functions:
752
753void Browser::WindowFullscreenStateChanged() {
754  fullscreen_controller_->WindowFullscreenStateChanged();
755  command_controller_->FullscreenStateChanged();
756  UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TOGGLE_FULLSCREEN);
757}
758
759void Browser::VisibleSSLStateChanged(content::WebContents* web_contents) {
760  // When the current tab's SSL state changes, we need to update the URL
761  // bar to reflect the new state.
762  DCHECK(web_contents);
763  if (tab_strip_model_->GetActiveWebContents() == web_contents)
764    UpdateToolbar(false);
765}
766
767void Browser::OnWebContentsInstantSupportDisabled(
768    const content::WebContents* web_contents) {
769  DCHECK(web_contents);
770  if (tab_strip_model_->GetActiveWebContents() == web_contents)
771    UpdateToolbar(false);
772}
773
774///////////////////////////////////////////////////////////////////////////////
775// Browser, Assorted browser commands:
776
777void Browser::ToggleFullscreenModeWithExtension(const GURL& extension_url) {
778  fullscreen_controller_->ToggleFullscreenModeWithExtension(extension_url);
779}
780
781bool Browser::SupportsWindowFeature(WindowFeature feature) const {
782  return SupportsWindowFeatureImpl(feature, true);
783}
784
785bool Browser::CanSupportWindowFeature(WindowFeature feature) const {
786  return SupportsWindowFeatureImpl(feature, false);
787}
788
789void Browser::ToggleEncodingAutoDetect() {
790  content::RecordAction(UserMetricsAction("AutoDetectChange"));
791  encoding_auto_detect_.SetValue(!encoding_auto_detect_.GetValue());
792  // If "auto detect" is turned on, then any current override encoding
793  // is cleared. This also implicitly performs a reload.
794  // OTOH, if "auto detect" is turned off, we don't change the currently
795  // active encoding.
796  if (encoding_auto_detect_.GetValue()) {
797    WebContents* contents = tab_strip_model_->GetActiveWebContents();
798    if (contents)
799      contents->ResetOverrideEncoding();
800  }
801}
802
803void Browser::OverrideEncoding(int encoding_id) {
804  content::RecordAction(UserMetricsAction("OverrideEncoding"));
805  const std::string selected_encoding =
806      CharacterEncoding::GetCanonicalEncodingNameByCommandId(encoding_id);
807  WebContents* contents = tab_strip_model_->GetActiveWebContents();
808  if (!selected_encoding.empty() && contents)
809     contents->SetOverrideEncoding(selected_encoding);
810  // Update the list of recently selected encodings.
811  std::string new_selected_encoding_list;
812  if (CharacterEncoding::UpdateRecentlySelectedEncoding(
813        profile_->GetPrefs()->GetString(prefs::kRecentlySelectedEncoding),
814        encoding_id,
815        &new_selected_encoding_list)) {
816    profile_->GetPrefs()->SetString(prefs::kRecentlySelectedEncoding,
817                                    new_selected_encoding_list);
818  }
819}
820
821void Browser::OpenFile() {
822  content::RecordAction(UserMetricsAction("OpenFile"));
823  select_file_dialog_ = ui::SelectFileDialog::Create(
824      this, new ChromeSelectFilePolicy(
825          tab_strip_model_->GetActiveWebContents()));
826
827  const base::FilePath directory = profile_->last_selected_directory();
828
829  // TODO(beng): figure out how to juggle this.
830  gfx::NativeWindow parent_window = window_->GetNativeWindow();
831  ui::SelectFileDialog::FileTypeInfo file_types;
832  file_types.support_drive = true;
833  select_file_dialog_->SelectFile(ui::SelectFileDialog::SELECT_OPEN_FILE,
834                                  string16(),
835                                  directory,
836                                  &file_types,
837                                  0,
838                                  base::FilePath::StringType(),
839                                  parent_window,
840                                  NULL);
841}
842
843void Browser::UpdateDownloadShelfVisibility(bool visible) {
844  if (GetStatusBubble())
845    GetStatusBubble()->UpdateDownloadShelfVisibility(visible);
846}
847
848///////////////////////////////////////////////////////////////////////////////
849
850// static
851bool Browser::RunUnloadEventsHelper(WebContents* contents) {
852  // If the WebContents is not connected yet, then there's no unload
853  // handler we can fire even if the WebContents has an unload listener.
854  // One case where we hit this is in a tab that has an infinite loop
855  // before load.
856  if (contents->NeedToFireBeforeUnload()) {
857    // If the page has unload listeners, then we tell the renderer to fire
858    // them. Once they have fired, we'll get a message back saying whether
859    // to proceed closing the page or not, which sends us back to this method
860    // with the NeedToFireBeforeUnload bit cleared.
861    contents->GetRenderViewHost()->FirePageBeforeUnload(false);
862    return true;
863  }
864  return false;
865}
866
867// static
868void Browser::JSOutOfMemoryHelper(WebContents* web_contents) {
869  InfoBarService* infobar_service =
870      InfoBarService::FromWebContents(web_contents);
871  if (!infobar_service)
872    return;
873  SimpleAlertInfoBarDelegate::Create(
874      infobar_service, InfoBarDelegate::kNoIconID,
875      l10n_util::GetStringUTF16(IDS_JS_OUT_OF_MEMORY_PROMPT), true);
876}
877
878// static
879void Browser::RegisterProtocolHandlerHelper(WebContents* web_contents,
880                                            const std::string& protocol,
881                                            const GURL& url,
882                                            const string16& title,
883                                            bool user_gesture,
884                                            BrowserWindow* window) {
885  Profile* profile =
886      Profile::FromBrowserContext(web_contents->GetBrowserContext());
887  if (profile->IsOffTheRecord())
888    return;
889
890  ProtocolHandler handler =
891      ProtocolHandler::CreateProtocolHandler(protocol, url, title);
892
893  ProtocolHandlerRegistry* registry =
894      ProtocolHandlerRegistryFactory::GetForProfile(profile);
895  if (registry->SilentlyHandleRegisterHandlerRequest(handler))
896    return;
897
898  TabSpecificContentSettings* tab_content_settings =
899      TabSpecificContentSettings::FromWebContents(web_contents);
900  if (!user_gesture && window) {
901    tab_content_settings->set_pending_protocol_handler(handler);
902    tab_content_settings->set_previous_protocol_handler(
903        registry->GetHandlerFor(handler.protocol()));
904    window->GetLocationBar()->UpdateContentSettingsIcons();
905    return;
906  }
907
908  // Make sure content-setting icon is turned off in case the page does
909  // ungestured and gestured RPH calls.
910  if (window) {
911    tab_content_settings->ClearPendingProtocolHandler();
912    window->GetLocationBar()->UpdateContentSettingsIcons();
913  }
914
915  RegisterProtocolHandlerInfoBarDelegate::Create(
916      InfoBarService::FromWebContents(web_contents), registry, handler);
917}
918
919// static
920void Browser::FindReplyHelper(WebContents* web_contents,
921                              int request_id,
922                              int number_of_matches,
923                              const gfx::Rect& selection_rect,
924                              int active_match_ordinal,
925                              bool final_update) {
926  FindTabHelper* find_tab_helper = FindTabHelper::FromWebContents(web_contents);
927  if (!find_tab_helper)
928    return;
929
930  find_tab_helper->HandleFindReply(request_id,
931                                   number_of_matches,
932                                   selection_rect,
933                                   active_match_ordinal,
934                                   final_update);
935}
936
937void Browser::UpdateUIForNavigationInTab(WebContents* contents,
938                                         content::PageTransition transition,
939                                         bool user_initiated) {
940  tab_strip_model_->TabNavigating(contents, transition);
941
942  bool contents_is_selected =
943      contents == tab_strip_model_->GetActiveWebContents();
944  if (user_initiated && contents_is_selected && window()->GetLocationBar()) {
945    // Forcibly reset the location bar if the url is going to change in the
946    // current tab, since otherwise it won't discard any ongoing user edits,
947    // since it doesn't realize this is a user-initiated action.
948    window()->GetLocationBar()->Revert();
949  }
950
951  if (GetStatusBubble())
952    GetStatusBubble()->Hide();
953
954  // Update the location bar. This is synchronous. We specifically don't
955  // update the load state since the load hasn't started yet and updating it
956  // will put it out of sync with the actual state like whether we're
957  // displaying a favicon, which controls the throbber. If we updated it here,
958  // the throbber will show the default favicon for a split second when
959  // navigating away from the new tab page.
960  ScheduleUIUpdate(contents, content::INVALIDATE_TYPE_URL);
961
962  if (contents_is_selected)
963    contents->GetView()->SetInitialFocus();
964}
965
966///////////////////////////////////////////////////////////////////////////////
967// Browser, PageNavigator implementation:
968
969WebContents* Browser::OpenURL(const OpenURLParams& params) {
970  return OpenURLFromTab(NULL, params);
971}
972
973///////////////////////////////////////////////////////////////////////////////
974// Browser, TabStripModelObserver implementation:
975
976void Browser::TabInsertedAt(WebContents* contents,
977                            int index,
978                            bool foreground) {
979  SetAsDelegate(contents, this);
980  SessionTabHelper* session_tab_helper =
981      SessionTabHelper::FromWebContents(contents);
982  session_tab_helper->SetWindowID(session_id());
983
984  content::NotificationService::current()->Notify(
985      chrome::NOTIFICATION_TAB_PARENTED,
986      content::Source<content::WebContents>(contents),
987      content::NotificationService::NoDetails());
988
989  SyncHistoryWithTabs(index);
990
991  // Make sure the loading state is updated correctly, otherwise the throbber
992  // won't start if the page is loading.
993  LoadingStateChanged(contents);
994
995  interstitial_observers_.push_back(new InterstitialObserver(this, contents));
996
997  SessionService* session_service =
998      SessionServiceFactory::GetForProfile(profile_);
999  if (session_service) {
1000    session_service->TabInserted(contents);
1001    int new_active_index = tab_strip_model_->active_index();
1002    if (index < new_active_index)
1003      session_service->SetSelectedTabInWindow(session_id(),
1004                                              new_active_index);
1005  }
1006}
1007
1008void Browser::TabClosingAt(TabStripModel* tab_strip_model,
1009                           WebContents* contents,
1010                           int index) {
1011  fullscreen_controller_->OnTabClosing(contents);
1012  SessionService* session_service =
1013      SessionServiceFactory::GetForProfile(profile_);
1014  if (session_service)
1015    session_service->TabClosing(contents);
1016  content::NotificationService::current()->Notify(
1017      chrome::NOTIFICATION_TAB_CLOSING,
1018      content::Source<NavigationController>(&contents->GetController()),
1019      content::NotificationService::NoDetails());
1020
1021  // Sever the WebContents' connection back to us.
1022  SetAsDelegate(contents, NULL);
1023}
1024
1025void Browser::TabDetachedAt(WebContents* contents, int index) {
1026  // TabDetachedAt is called before TabStripModel has updated the
1027  // active index.
1028  int old_active_index = tab_strip_model_->active_index();
1029  if (index < old_active_index && !tab_strip_model_->closing_all()) {
1030    SessionService* session_service =
1031        SessionServiceFactory::GetForProfileIfExisting(profile_);
1032    if (session_service)
1033      session_service->SetSelectedTabInWindow(session_id(),
1034                                              old_active_index - 1);
1035  }
1036  TabDetachedAtImpl(contents, index, DETACH_TYPE_DETACH);
1037}
1038
1039void Browser::TabDeactivated(WebContents* contents) {
1040  fullscreen_controller_->OnTabDeactivated(contents);
1041  search_delegate_->OnTabDeactivated(contents);
1042
1043  // Save what the user's currently typing, so it can be restored when we
1044  // switch back to this tab.
1045  window_->GetLocationBar()->SaveStateToContents(contents);
1046
1047  if (instant_controller_)
1048    instant_controller_->TabDeactivated(contents);
1049}
1050
1051void Browser::ActiveTabChanged(WebContents* old_contents,
1052                               WebContents* new_contents,
1053                               int index,
1054                               int reason) {
1055  content::RecordAction(UserMetricsAction("ActiveTabChanged"));
1056
1057  // Discarded tabs always get reloaded.
1058  if (tab_strip_model_->IsTabDiscarded(index)) {
1059    LOG(WARNING) << "Reloading discarded tab at " << index;
1060    static int reload_count = 0;
1061    UMA_HISTOGRAM_CUSTOM_COUNTS(
1062        "Tabs.Discard.ReloadCount", ++reload_count, 1, 1000, 50);
1063    chrome::Reload(this, CURRENT_TAB);
1064  }
1065
1066  // If we have any update pending, do it now.
1067  if (chrome_updater_factory_.HasWeakPtrs() && old_contents)
1068    ProcessPendingUIUpdates();
1069
1070  // Propagate the profile to the location bar.
1071  UpdateToolbar((reason & CHANGE_REASON_REPLACED) == 0);
1072
1073  // Propagate tab state to toolbar, tab-strip, etc.
1074  UpdateSearchState(new_contents);
1075
1076  // Update reload/stop state.
1077  command_controller_->LoadingStateChanged(new_contents->IsLoading(), true);
1078
1079  // Update commands to reflect current state.
1080  command_controller_->TabStateChanged();
1081
1082  // Reset the status bubble.
1083  StatusBubble* status_bubble = GetStatusBubble();
1084  if (status_bubble) {
1085    status_bubble->Hide();
1086
1087    // Show the loading state (if any).
1088    status_bubble->SetStatus(CoreTabHelper::FromWebContents(
1089        tab_strip_model_->GetActiveWebContents())->GetStatusText());
1090  }
1091
1092  if (HasFindBarController()) {
1093    find_bar_controller_->ChangeWebContents(new_contents);
1094    find_bar_controller_->find_bar()->MoveWindowIfNecessary(gfx::Rect(), true);
1095  }
1096
1097  // Update sessions. Don't force creation of sessions. If sessions doesn't
1098  // exist, the change will be picked up by sessions when created.
1099  SessionService* session_service =
1100      SessionServiceFactory::GetForProfileIfExisting(profile_);
1101  if (session_service && !tab_strip_model_->closing_all()) {
1102    session_service->SetSelectedTabInWindow(session_id(),
1103                                            tab_strip_model_->active_index());
1104  }
1105
1106  UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_SWITCH);
1107
1108  // This needs to be called after UpdateSearchState().
1109  if (instant_controller_)
1110    instant_controller_->ActiveTabChanged();
1111
1112  autofill::TabAutofillManagerDelegate::FromWebContents(new_contents)->
1113      TabActivated(reason);
1114}
1115
1116void Browser::TabMoved(WebContents* contents,
1117                       int from_index,
1118                       int to_index) {
1119  DCHECK(from_index >= 0 && to_index >= 0);
1120  // Notify the history service.
1121  SyncHistoryWithTabs(std::min(from_index, to_index));
1122}
1123
1124void Browser::TabReplacedAt(TabStripModel* tab_strip_model,
1125                            WebContents* old_contents,
1126                            WebContents* new_contents,
1127                            int index) {
1128  TabDetachedAtImpl(old_contents, index, DETACH_TYPE_REPLACE);
1129  fullscreen_controller_->OnTabClosing(old_contents);
1130  SessionService* session_service =
1131      SessionServiceFactory::GetForProfile(profile_);
1132  if (session_service)
1133    session_service->TabClosing(old_contents);
1134  TabInsertedAt(new_contents,
1135                index,
1136                (index == tab_strip_model_->active_index()));
1137
1138  int entry_count = new_contents->GetController().GetEntryCount();
1139  if (entry_count > 0) {
1140    // Send out notification so that observers are updated appropriately.
1141    new_contents->GetController().NotifyEntryChanged(
1142        new_contents->GetController().GetEntryAtIndex(entry_count - 1),
1143        entry_count - 1);
1144  }
1145
1146  if (session_service) {
1147    // The new_contents may end up with a different navigation stack. Force
1148    // the session service to update itself.
1149    session_service->TabRestored(new_contents,
1150                                 tab_strip_model_->IsTabPinned(index));
1151  }
1152}
1153
1154void Browser::TabPinnedStateChanged(WebContents* contents, int index) {
1155  SessionService* session_service =
1156      SessionServiceFactory::GetForProfileIfExisting(profile());
1157  if (session_service) {
1158    SessionTabHelper* session_tab_helper =
1159        SessionTabHelper::FromWebContents(contents);
1160    session_service->SetPinnedState(session_id(),
1161                                    session_tab_helper->session_id(),
1162                                    tab_strip_model_->IsTabPinned(index));
1163  }
1164}
1165
1166void Browser::TabStripEmpty() {
1167  // Close the frame after we return to the message loop (not immediately,
1168  // otherwise it will destroy this object before the stack has a chance to
1169  // cleanly unwind.)
1170  // Note: This will be called several times if TabStripEmpty is called several
1171  //       times. This is because it does not close the window if tabs are
1172  //       still present.
1173  base::MessageLoop::current()->PostTask(
1174      FROM_HERE, base::Bind(&Browser::CloseFrame, weak_factory_.GetWeakPtr()));
1175
1176  // Instant may have visible WebContents that need to be detached before the
1177  // window system closes.
1178  instant_controller_.reset();
1179}
1180
1181bool Browser::CanOverscrollContent() const {
1182#if defined(USE_AURA)
1183  bool overscroll_enabled = CommandLine::ForCurrentProcess()->
1184      GetSwitchValueASCII(switches::kOverscrollHistoryNavigation) != "0";
1185  if (!overscroll_enabled)
1186    return false;
1187  if (is_app() || is_devtools() || !is_type_tabbed())
1188    return false;
1189
1190  // The detached bookmark bar has appearance of floating above the
1191  // web-contents. This does not play nicely with overscroll navigation
1192  // gestures. So disable overscroll navigation when the bookmark bar is in the
1193  // detached state.
1194  if (bookmark_bar_state_ == BookmarkBar::DETACHED)
1195    return false;
1196  return true;
1197#else
1198  return false;
1199#endif
1200}
1201
1202bool Browser::PreHandleKeyboardEvent(content::WebContents* source,
1203                                     const NativeWebKeyboardEvent& event,
1204                                     bool* is_keyboard_shortcut) {
1205  // Escape exits tabbed fullscreen mode.
1206  // TODO(koz): Write a test for this http://crbug.com/100441.
1207  if (event.windowsKeyCode == 27 &&
1208      fullscreen_controller_->HandleUserPressedEscape()) {
1209    return true;
1210  }
1211  return window()->PreHandleKeyboardEvent(event, is_keyboard_shortcut);
1212}
1213
1214void Browser::HandleKeyboardEvent(content::WebContents* source,
1215                                  const NativeWebKeyboardEvent& event) {
1216  window()->HandleKeyboardEvent(event);
1217}
1218
1219bool Browser::TabsNeedBeforeUnloadFired() {
1220  if (IsFastTabUnloadEnabled())
1221    return fast_unload_controller_->TabsNeedBeforeUnloadFired();
1222  return unload_controller_->TabsNeedBeforeUnloadFired();
1223}
1224
1225void Browser::OverscrollUpdate(int delta_y) {
1226  window_->OverscrollUpdate(delta_y);
1227}
1228
1229bool Browser::IsMouseLocked() const {
1230  return fullscreen_controller_->IsMouseLocked();
1231}
1232
1233void Browser::OnWindowDidShow() {
1234  if (window_has_shown_)
1235    return;
1236  window_has_shown_ = true;
1237
1238// CurrentProcessInfo::CreationTime() is missing on some platforms.
1239#if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
1240  // Measure the latency from startup till the first browser window becomes
1241  // visible.
1242  static bool is_first_browser_window = true;
1243  if (is_first_browser_window &&
1244      !startup_metric_utils::WasNonBrowserUIDisplayed()) {
1245    is_first_browser_window = false;
1246    const base::Time process_creation_time =
1247        base::CurrentProcessInfo::CreationTime();
1248
1249    if (!process_creation_time.is_null()) {
1250      UMA_HISTOGRAM_LONG_TIMES(
1251          "Startup.BrowserWindowDisplay",
1252          base::Time::Now() - process_creation_time);
1253    }
1254  }
1255#endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
1256
1257  // Nothing to do for non-tabbed windows.
1258  if (!is_type_tabbed())
1259    return;
1260
1261  // Show any pending global error bubble.
1262  GlobalErrorService* service =
1263      GlobalErrorServiceFactory::GetForProfile(profile());
1264  GlobalError* error = service->GetFirstGlobalErrorWithBubbleView();
1265  if (error)
1266    error->ShowBubbleView(this);
1267}
1268
1269void Browser::ShowFirstRunBubble() {
1270  window()->GetLocationBar()->ShowFirstRunBubble();
1271}
1272
1273void Browser::ShowDownload(content::DownloadItem* download) {
1274  if (!window())
1275    return;
1276
1277  // If the download occurs in a new tab, and it's not a save page
1278  // download (started before initial navigation completed) close it.
1279  WebContents* source = download->GetWebContents();
1280  if (source && source->GetController().IsInitialNavigation() &&
1281      tab_strip_model_->count() > 1 && !download->IsSavePackageDownload()) {
1282    CloseContents(source);
1283  }
1284
1285  // Some (app downloads) are not supposed to appear on the shelf.
1286  if (!DownloadItemModel(download).ShouldShowInShelf())
1287    return;
1288
1289  // GetDownloadShelf creates the download shelf if it was not yet created.
1290  DownloadShelf* shelf = window()->GetDownloadShelf();
1291  shelf->AddDownload(download);
1292}
1293
1294///////////////////////////////////////////////////////////////////////////////
1295// Browser, content::WebContentsDelegate implementation:
1296
1297WebContents* Browser::OpenURLFromTab(WebContents* source,
1298                                     const OpenURLParams& params) {
1299  chrome::NavigateParams nav_params(this, params.url, params.transition);
1300  FillNavigateParamsFromOpenURLParams(&nav_params, params);
1301  nav_params.source_contents = source;
1302  nav_params.tabstrip_add_types = TabStripModel::ADD_NONE;
1303  nav_params.window_action = chrome::NavigateParams::SHOW_WINDOW;
1304  nav_params.user_gesture = params.user_gesture;
1305
1306  PopupBlockerTabHelper* popup_blocker_helper = NULL;
1307  if (source)
1308    popup_blocker_helper = PopupBlockerTabHelper::FromWebContents(source);
1309
1310  if (popup_blocker_helper) {
1311    if ((params.disposition == NEW_POPUP ||
1312         params.disposition == NEW_FOREGROUND_TAB ||
1313         params.disposition == NEW_BACKGROUND_TAB ||
1314         params.disposition == NEW_WINDOW) &&
1315        !params.user_gesture && !CommandLine::ForCurrentProcess()->HasSwitch(
1316                                    switches::kDisablePopupBlocking)) {
1317      if (popup_blocker_helper->MaybeBlockPopup(nav_params,
1318                                                WebWindowFeatures())) {
1319        return NULL;
1320      }
1321    }
1322  }
1323
1324  chrome::Navigate(&nav_params);
1325
1326  return nav_params.target_contents;
1327}
1328
1329void Browser::NavigationStateChanged(const WebContents* source,
1330                                     unsigned changed_flags) {
1331  // Only update the UI when something visible has changed.
1332  if (changed_flags)
1333    ScheduleUIUpdate(source, changed_flags);
1334
1335  // We can synchronously update commands since they will only change once per
1336  // navigation, so we don't have to worry about flickering. We do, however,
1337  // need to update the command state early on load to always present usable
1338  // actions in the face of slow-to-commit pages.
1339  if (changed_flags & (content::INVALIDATE_TYPE_URL |
1340                       content::INVALIDATE_TYPE_LOAD))
1341    command_controller_->TabStateChanged();
1342}
1343
1344void Browser::AddNewContents(WebContents* source,
1345                             WebContents* new_contents,
1346                             WindowOpenDisposition disposition,
1347                             const gfx::Rect& initial_pos,
1348                             bool user_gesture,
1349                             bool* was_blocked) {
1350  chrome::AddWebContents(this, source, new_contents, disposition, initial_pos,
1351                         user_gesture, was_blocked);
1352}
1353
1354void Browser::ActivateContents(WebContents* contents) {
1355  tab_strip_model_->ActivateTabAt(
1356      tab_strip_model_->GetIndexOfWebContents(contents), false);
1357  window_->Activate();
1358}
1359
1360void Browser::DeactivateContents(WebContents* contents) {
1361  window_->Deactivate();
1362}
1363
1364void Browser::LoadingStateChanged(WebContents* source) {
1365  window_->UpdateLoadingAnimations(tab_strip_model_->TabsAreLoading());
1366  window_->UpdateTitleBar();
1367
1368  WebContents* selected_contents = tab_strip_model_->GetActiveWebContents();
1369  if (source == selected_contents) {
1370    bool is_loading = source->IsLoading();
1371    command_controller_->LoadingStateChanged(is_loading, false);
1372    if (GetStatusBubble()) {
1373      GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
1374          tab_strip_model_->GetActiveWebContents())->GetStatusText());
1375    }
1376  }
1377}
1378
1379void Browser::CloseContents(WebContents* source) {
1380  bool can_close_contents;
1381  if (IsFastTabUnloadEnabled())
1382    can_close_contents = fast_unload_controller_->CanCloseContents(source);
1383  else
1384    can_close_contents = unload_controller_->CanCloseContents(source);
1385
1386  if (can_close_contents)
1387    chrome::CloseWebContents(this, source, true);
1388}
1389
1390void Browser::MoveContents(WebContents* source, const gfx::Rect& pos) {
1391  if (!IsPopupOrPanel(source)) {
1392    NOTREACHED() << "moving invalid browser type";
1393    return;
1394  }
1395  window_->SetBounds(pos);
1396}
1397
1398bool Browser::IsPopupOrPanel(const WebContents* source) const {
1399  return is_type_popup();
1400}
1401
1402void Browser::UpdateTargetURL(WebContents* source, int32 page_id,
1403                              const GURL& url) {
1404  if (!GetStatusBubble())
1405    return;
1406
1407  if (source == tab_strip_model_->GetActiveWebContents()) {
1408    PrefService* prefs = profile_->GetPrefs();
1409    GetStatusBubble()->SetURL(url, prefs->GetString(prefs::kAcceptLanguages));
1410  }
1411}
1412
1413void Browser::ContentsMouseEvent(
1414    WebContents* source, const gfx::Point& location, bool motion) {
1415  if (!GetStatusBubble())
1416    return;
1417
1418  if (source == tab_strip_model_->GetActiveWebContents()) {
1419    GetStatusBubble()->MouseMoved(location, !motion);
1420    if (!motion)
1421      GetStatusBubble()->SetURL(GURL(), std::string());
1422  }
1423}
1424
1425void Browser::ContentsZoomChange(bool zoom_in) {
1426  chrome::ExecuteCommand(this, zoom_in ? IDC_ZOOM_PLUS : IDC_ZOOM_MINUS);
1427}
1428
1429void Browser::WebContentsFocused(WebContents* contents) {
1430  window_->WebContentsFocused(contents);
1431}
1432
1433bool Browser::TakeFocus(content::WebContents* source,
1434                        bool reverse) {
1435  content::NotificationService::current()->Notify(
1436      chrome::NOTIFICATION_FOCUS_RETURNED_TO_BROWSER,
1437      content::Source<Browser>(this),
1438      content::NotificationService::NoDetails());
1439  return false;
1440}
1441
1442gfx::Rect Browser::GetRootWindowResizerRect() const {
1443  return window_->GetRootWindowResizerRect();
1444}
1445
1446void Browser::BeforeUnloadFired(WebContents* web_contents,
1447                                bool proceed,
1448                                bool* proceed_to_fire_unload) {
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(chrome::kChromeUIScheme) &&
1465        url.host() == chrome::kChromeUINewTabHost) ||
1466        (virtual_url.SchemeIs(chrome::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
1486void Browser::RenderWidgetShowing() {
1487  window_->DisableInactiveFrame();
1488}
1489
1490int Browser::GetExtraRenderViewHeight() const {
1491  return window_->GetExtraRenderViewHeight();
1492}
1493
1494void Browser::ViewSourceForTab(WebContents* source, const GURL& page_url) {
1495  DCHECK(source);
1496  chrome::ViewSource(this, source);
1497}
1498
1499void Browser::ViewSourceForFrame(WebContents* source,
1500                                 const GURL& frame_url,
1501                                 const content::PageState& frame_page_state) {
1502  DCHECK(source);
1503  chrome::ViewSource(this, source, frame_url, frame_page_state);
1504}
1505
1506void Browser::ShowRepostFormWarningDialog(WebContents* source) {
1507  TabModalConfirmDialog::Create(new RepostFormWarningController(source),
1508                                source);
1509}
1510
1511bool Browser::ShouldCreateWebContents(
1512    WebContents* web_contents,
1513    int route_id,
1514    WindowContainerType window_container_type,
1515    const string16& frame_name,
1516    const GURL& target_url,
1517    const std::string& partition_id,
1518    content::SessionStorageNamespace* session_storage_namespace) {
1519  if (window_container_type == WINDOW_CONTAINER_TYPE_BACKGROUND) {
1520    // If a BackgroundContents is created, suppress the normal WebContents.
1521    return !MaybeCreateBackgroundContents(route_id,
1522                                          web_contents,
1523                                          frame_name,
1524                                          target_url,
1525                                          partition_id,
1526                                          session_storage_namespace);
1527  }
1528
1529  return true;
1530}
1531
1532void Browser::WebContentsCreated(WebContents* source_contents,
1533                                 int64 source_frame_id,
1534                                 const string16& frame_name,
1535                                 const GURL& target_url,
1536                                 WebContents* new_contents) {
1537  // Adopt the WebContents now, so all observers are in place, as the network
1538  // requests for its initial navigation will start immediately. The WebContents
1539  // will later be inserted into this browser using Browser::Navigate via
1540  // AddNewContents.
1541  BrowserTabContents::AttachTabHelpers(new_contents);
1542
1543  // Notify.
1544  RetargetingDetails details;
1545  details.source_web_contents = source_contents;
1546  details.source_frame_id = source_frame_id;
1547  details.target_url = target_url;
1548  details.target_web_contents = new_contents;
1549  details.not_yet_in_tabstrip = true;
1550  content::NotificationService::current()->Notify(
1551      chrome::NOTIFICATION_RETARGETING,
1552      content::Source<Profile>(profile_),
1553      content::Details<RetargetingDetails>(&details));
1554}
1555
1556void Browser::RendererUnresponsive(WebContents* source) {
1557  // Ignore hangs if a tab is blocked.
1558  int index = tab_strip_model_->GetIndexOfWebContents(source);
1559  DCHECK_NE(TabStripModel::kNoTab, index);
1560  if (tab_strip_model_->IsTabBlocked(index))
1561    return;
1562
1563  chrome::ShowHungRendererDialog(source);
1564}
1565
1566void Browser::RendererResponsive(WebContents* source) {
1567  chrome::HideHungRendererDialog(source);
1568}
1569
1570void Browser::WorkerCrashed(WebContents* source) {
1571  SimpleAlertInfoBarDelegate::Create(
1572      InfoBarService::FromWebContents(source), InfoBarDelegate::kNoIconID,
1573      l10n_util::GetStringUTF16(IDS_WEBWORKER_CRASHED_PROMPT), true);
1574}
1575
1576void Browser::DidNavigateMainFramePostCommit(WebContents* web_contents) {
1577  if (web_contents == tab_strip_model_->GetActiveWebContents())
1578    UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
1579}
1580
1581void Browser::DidNavigateToPendingEntry(WebContents* web_contents) {
1582  if (web_contents == tab_strip_model_->GetActiveWebContents())
1583    UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
1584}
1585
1586content::JavaScriptDialogManager* Browser::GetJavaScriptDialogManager() {
1587  return GetJavaScriptDialogManagerInstance();
1588}
1589
1590content::ColorChooser* Browser::OpenColorChooser(WebContents* web_contents,
1591                                                 SkColor initial_color) {
1592  return chrome::ShowColorChooser(web_contents, initial_color);
1593}
1594
1595void Browser::RunFileChooser(WebContents* web_contents,
1596                             const content::FileChooserParams& params) {
1597  FileSelectHelper::RunFileChooser(web_contents, params);
1598}
1599
1600void Browser::EnumerateDirectory(WebContents* web_contents,
1601                                 int request_id,
1602                                 const base::FilePath& path) {
1603  FileSelectHelper::EnumerateDirectory(web_contents, request_id, path);
1604}
1605
1606void Browser::ToggleFullscreenModeForTab(WebContents* web_contents,
1607                                         bool enter_fullscreen) {
1608  fullscreen_controller_->ToggleFullscreenModeForTab(web_contents,
1609                                                     enter_fullscreen);
1610}
1611
1612bool Browser::IsFullscreenForTabOrPending(
1613    const WebContents* web_contents) const {
1614  return fullscreen_controller_->IsFullscreenForTabOrPending(web_contents);
1615}
1616
1617void Browser::JSOutOfMemory(WebContents* web_contents) {
1618  JSOutOfMemoryHelper(web_contents);
1619}
1620
1621void Browser::RegisterProtocolHandler(WebContents* web_contents,
1622                                      const std::string& protocol,
1623                                      const GURL& url,
1624                                      const string16& title,
1625                                      bool user_gesture) {
1626  RegisterProtocolHandlerHelper(
1627      web_contents, protocol, url, title, user_gesture, window());
1628}
1629
1630void Browser::UpdatePreferredSize(WebContents* source,
1631                                  const gfx::Size& pref_size) {
1632  window_->UpdatePreferredSize(source, pref_size);
1633}
1634
1635void Browser::ResizeDueToAutoResize(WebContents* source,
1636                                    const gfx::Size& new_size) {
1637  window_->ResizeDueToAutoResize(source, new_size);
1638}
1639
1640void Browser::FindReply(WebContents* web_contents,
1641                        int request_id,
1642                        int number_of_matches,
1643                        const gfx::Rect& selection_rect,
1644                        int active_match_ordinal,
1645                        bool final_update) {
1646  FindReplyHelper(web_contents, request_id, number_of_matches, selection_rect,
1647                  active_match_ordinal, final_update);
1648}
1649
1650void Browser::RequestToLockMouse(WebContents* web_contents,
1651                                 bool user_gesture,
1652                                 bool last_unlocked_by_target) {
1653  fullscreen_controller_->RequestToLockMouse(web_contents,
1654                                             user_gesture,
1655                                             last_unlocked_by_target);
1656}
1657
1658void Browser::LostMouseLock() {
1659  fullscreen_controller_->LostMouseLock();
1660}
1661
1662void Browser::RequestMediaAccessPermission(
1663    content::WebContents* web_contents,
1664    const content::MediaStreamRequest& request,
1665    const content::MediaResponseCallback& callback) {
1666  const extensions::Extension* extension = NULL;
1667  GURL origin(request.security_origin);
1668  if (origin.SchemeIs(extensions::kExtensionScheme)) {
1669    ExtensionService* extensions_service =
1670        extensions::ExtensionSystem::Get(profile_)->extension_service();
1671    extension = extensions_service->extensions()->GetByID(origin.host());
1672    DCHECK(extension);
1673  }
1674
1675  MediaCaptureDevicesDispatcher::GetInstance()->ProcessMediaAccessRequest(
1676      web_contents, request, callback, extension);
1677}
1678
1679bool Browser::RequestPpapiBrokerPermission(
1680    WebContents* web_contents,
1681    const GURL& url,
1682    const base::FilePath& plugin_path,
1683    const base::Callback<void(bool)>& callback) {
1684  PepperBrokerInfoBarDelegate::Create(web_contents, url, plugin_path, callback);
1685  return true;
1686}
1687
1688///////////////////////////////////////////////////////////////////////////////
1689// Browser, CoreTabHelperDelegate implementation:
1690
1691void Browser::SwapTabContents(content::WebContents* old_contents,
1692                              content::WebContents* new_contents) {
1693  int index = tab_strip_model_->GetIndexOfWebContents(old_contents);
1694  DCHECK_NE(TabStripModel::kNoTab, index);
1695  tab_strip_model_->ReplaceWebContentsAt(index, new_contents);
1696}
1697
1698bool Browser::CanReloadContents(content::WebContents* web_contents) const {
1699  return chrome::CanReload(this);
1700}
1701
1702bool Browser::CanSaveContents(content::WebContents* web_contents) const {
1703  return chrome::CanSavePage(this);
1704}
1705
1706///////////////////////////////////////////////////////////////////////////////
1707// Browser, SearchEngineTabHelperDelegate implementation:
1708
1709void Browser::ConfirmAddSearchProvider(TemplateURL* template_url,
1710                                       Profile* profile) {
1711  window()->ConfirmAddSearchProvider(template_url, profile);
1712}
1713
1714///////////////////////////////////////////////////////////////////////////////
1715// Browser, web_modal::WebContentsModalDialogManagerDelegate implementation:
1716
1717void Browser::SetWebContentsBlocked(content::WebContents* web_contents,
1718                                    bool blocked) {
1719  int index = tab_strip_model_->GetIndexOfWebContents(web_contents);
1720  if (index == TabStripModel::kNoTab) {
1721    NOTREACHED();
1722    return;
1723  }
1724  tab_strip_model_->SetTabBlocked(index, blocked);
1725  if (!blocked && tab_strip_model_->GetActiveWebContents() == web_contents)
1726    web_contents->GetView()->Focus();
1727}
1728
1729web_modal::WebContentsModalDialogHost*
1730Browser::GetWebContentsModalDialogHost() {
1731  return window_->GetWebContentsModalDialogHost();
1732}
1733
1734///////////////////////////////////////////////////////////////////////////////
1735// Browser, BlockedContentTabHelperDelegate implementation:
1736
1737content::WebContents* Browser::GetConstrainingWebContents(
1738    content::WebContents* source) {
1739  return source;
1740}
1741
1742///////////////////////////////////////////////////////////////////////////////
1743// Browser, BookmarkTabHelperDelegate implementation:
1744
1745void Browser::URLStarredChanged(content::WebContents* web_contents,
1746                                bool starred) {
1747  if (web_contents == tab_strip_model_->GetActiveWebContents())
1748    window_->SetStarredState(starred);
1749}
1750
1751///////////////////////////////////////////////////////////////////////////////
1752// Browser, ZoomObserver implementation:
1753
1754void Browser::OnZoomChanged(content::WebContents* source,
1755                            bool can_show_bubble) {
1756  if (source == tab_strip_model_->GetActiveWebContents()) {
1757    // Only show the zoom bubble for zoom changes in the active window.
1758    window_->ZoomChangedForActiveTab(can_show_bubble && window_->IsActive());
1759  }
1760}
1761
1762///////////////////////////////////////////////////////////////////////////////
1763// Browser, ui::SelectFileDialog::Listener implementation:
1764
1765void Browser::FileSelected(const base::FilePath& path, int index,
1766                           void* params) {
1767  FileSelectedWithExtraInfo(ui::SelectedFileInfo(path, path), index, params);
1768}
1769
1770void Browser::FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file_info,
1771                                        int index,
1772                                        void* params) {
1773  profile_->set_last_selected_directory(file_info.file_path.DirName());
1774
1775  GURL url = net::FilePathToFileURL(file_info.local_path);
1776
1777#if defined(OS_CHROMEOS)
1778  drive::util::MaybeSetDriveURL(profile_, file_info.file_path, &url);
1779#endif
1780
1781  if (url.is_empty())
1782    return;
1783
1784  OpenURL(OpenURLParams(
1785      url, Referrer(), CURRENT_TAB, content::PAGE_TRANSITION_TYPED, false));
1786}
1787
1788///////////////////////////////////////////////////////////////////////////////
1789// Browser, content::NotificationObserver implementation:
1790
1791void Browser::Observe(int type,
1792                      const content::NotificationSource& source,
1793                      const content::NotificationDetails& details) {
1794  switch (type) {
1795    case chrome::NOTIFICATION_EXTENSION_UNLOADED: {
1796      if (window()->GetLocationBar())
1797        window()->GetLocationBar()->UpdatePageActions();
1798
1799      const extensions::UnloadedExtensionInfo* extension_info =
1800          content::Details<extensions::UnloadedExtensionInfo>(details).ptr();
1801
1802      // Close any tabs from the unloaded extension, unless it's terminated,
1803      // in which case let the sad tabs remain.
1804      if (extension_info->reason != extension_misc::UNLOAD_REASON_TERMINATE) {
1805        const Extension* extension = extension_info->extension;
1806        // Iterate backwards as we may remove items while iterating.
1807        for (int i = tab_strip_model_->count() - 1; i >= 0; --i) {
1808          WebContents* web_contents = tab_strip_model_->GetWebContentsAt(i);
1809          // Two cases are handled here:
1810          // - The scheme check is for when an extension page is loaded in a
1811          //   tab, e.g. chrome-extension://id/page.html.
1812          // - The extension_app check is for apps, which can have non-extension
1813          //   schemes, e.g. https://mail.google.com if you have the Gmail app
1814          //   installed.
1815          if ((web_contents->GetURL().SchemeIs(extensions::kExtensionScheme) &&
1816               web_contents->GetURL().host() == extension->id()) ||
1817              (extensions::TabHelper::FromWebContents(
1818                   web_contents)->extension_app() == extension)) {
1819            tab_strip_model_->CloseWebContentsAt(i, TabStripModel::CLOSE_NONE);
1820          }
1821        }
1822      }
1823      break;
1824    }
1825
1826    case chrome::NOTIFICATION_EXTENSION_PROCESS_TERMINATED: {
1827      Profile* profile = content::Source<Profile>(source).ptr();
1828      if (profile_->IsSameProfile(profile) && window()->GetLocationBar())
1829        window()->GetLocationBar()->InvalidatePageActions();
1830      break;
1831    }
1832
1833    case chrome::NOTIFICATION_EXTENSION_UNINSTALLED:
1834    case chrome::NOTIFICATION_EXTENSION_LOADED:
1835      // During window creation on Windows we may end up calling into
1836      // SHAppBarMessage, which internally spawns a nested message loop. This
1837      // makes it possible for us to end up here before window creation has
1838      // completed, at which point window_ is NULL. See 94752 for details.
1839      if (window() && window()->GetLocationBar())
1840        window()->GetLocationBar()->UpdatePageActions();
1841      break;
1842
1843#if defined(ENABLE_THEMES)
1844    case chrome::NOTIFICATION_BROWSER_THEME_CHANGED:
1845      window()->UserChangedTheme();
1846      break;
1847#endif
1848
1849    case chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED: {
1850      WebContents* web_contents = content::Source<WebContents>(source).ptr();
1851      if (web_contents == tab_strip_model_->GetActiveWebContents()) {
1852        LocationBar* location_bar = window()->GetLocationBar();
1853        if (location_bar)
1854          location_bar->UpdateContentSettingsIcons();
1855      }
1856      break;
1857    }
1858
1859    default:
1860      NOTREACHED() << "Got a notification we didn't register for.";
1861  }
1862}
1863
1864///////////////////////////////////////////////////////////////////////////////
1865// Browser, Command and state updating (private):
1866
1867void Browser::OnDevToolsDisabledChanged() {
1868  if (profile_->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled))
1869    content::DevToolsManager::GetInstance()->CloseAllClientHosts();
1870}
1871
1872///////////////////////////////////////////////////////////////////////////////
1873// Browser, UI update coalescing and handling (private):
1874
1875void Browser::UpdateToolbar(bool should_restore_state) {
1876  window_->UpdateToolbar(should_restore_state ?
1877      tab_strip_model_->GetActiveWebContents() : NULL);
1878}
1879
1880void Browser::UpdateSearchState(WebContents* contents) {
1881  if (chrome::IsInstantExtendedAPIEnabled())
1882    search_delegate_->OnTabActivated(contents);
1883}
1884
1885void Browser::ScheduleUIUpdate(const WebContents* source,
1886                               unsigned changed_flags) {
1887  if (!source)
1888    return;
1889
1890  // Do some synchronous updates.
1891  if (changed_flags & content::INVALIDATE_TYPE_URL &&
1892      source == tab_strip_model_->GetActiveWebContents()) {
1893    // Only update the URL for the current tab. Note that we do not update
1894    // the navigation commands since those would have already been updated
1895    // synchronously by NavigationStateChanged.
1896    UpdateToolbar(false);
1897    changed_flags &= ~content::INVALIDATE_TYPE_URL;
1898  }
1899  if (changed_flags & content::INVALIDATE_TYPE_LOAD) {
1900    // Update the loading state synchronously. This is so the throbber will
1901    // immediately start/stop, which gives a more snappy feel. We want to do
1902    // this for any tab so they start & stop quickly.
1903    tab_strip_model_->UpdateWebContentsStateAt(
1904        tab_strip_model_->GetIndexOfWebContents(source),
1905        TabStripModelObserver::LOADING_ONLY);
1906    // The status bubble needs to be updated during INVALIDATE_TYPE_LOAD too,
1907    // but we do that asynchronously by not stripping INVALIDATE_TYPE_LOAD from
1908    // changed_flags.
1909  }
1910
1911  if (changed_flags & content::INVALIDATE_TYPE_TITLE && !source->IsLoading()) {
1912    // To correctly calculate whether the title changed while not loading
1913    // we need to process the update synchronously. This state only matters for
1914    // the TabStripModel, so we notify the TabStripModel now and notify others
1915    // asynchronously.
1916    tab_strip_model_->UpdateWebContentsStateAt(
1917        tab_strip_model_->GetIndexOfWebContents(source),
1918        TabStripModelObserver::TITLE_NOT_LOADING);
1919  }
1920
1921  // If the only updates were synchronously handled above, we're done.
1922  if (changed_flags == 0)
1923    return;
1924
1925  // Save the dirty bits.
1926  scheduled_updates_[source] |= changed_flags;
1927
1928  if (!chrome_updater_factory_.HasWeakPtrs()) {
1929    // No task currently scheduled, start another.
1930    base::MessageLoop::current()->PostDelayedTask(
1931        FROM_HERE,
1932        base::Bind(&Browser::ProcessPendingUIUpdates,
1933                   chrome_updater_factory_.GetWeakPtr()),
1934        base::TimeDelta::FromMilliseconds(kUIUpdateCoalescingTimeMS));
1935  }
1936}
1937
1938void Browser::ProcessPendingUIUpdates() {
1939#ifndef NDEBUG
1940  // Validate that all tabs we have pending updates for exist. This is scary
1941  // because the pending list must be kept in sync with any detached or
1942  // deleted tabs.
1943  for (UpdateMap::const_iterator i = scheduled_updates_.begin();
1944       i != scheduled_updates_.end(); ++i) {
1945    bool found = false;
1946    for (int tab = 0; tab < tab_strip_model_->count(); tab++) {
1947      if (tab_strip_model_->GetWebContentsAt(tab) == i->first) {
1948        found = true;
1949        break;
1950      }
1951    }
1952    DCHECK(found);
1953  }
1954#endif
1955
1956  chrome_updater_factory_.InvalidateWeakPtrs();
1957
1958  for (UpdateMap::const_iterator i = scheduled_updates_.begin();
1959       i != scheduled_updates_.end(); ++i) {
1960    // Do not dereference |contents|, it may be out-of-date!
1961    const WebContents* contents = i->first;
1962    unsigned flags = i->second;
1963
1964    if (contents == tab_strip_model_->GetActiveWebContents()) {
1965      // Updates that only matter when the tab is selected go here.
1966
1967      if (flags & content::INVALIDATE_TYPE_PAGE_ACTIONS) {
1968        LocationBar* location_bar = window()->GetLocationBar();
1969        if (location_bar)
1970          location_bar->UpdatePageActions();
1971      }
1972      // Updating the URL happens synchronously in ScheduleUIUpdate.
1973      if (flags & content::INVALIDATE_TYPE_LOAD && GetStatusBubble()) {
1974        GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
1975            tab_strip_model_->GetActiveWebContents())->GetStatusText());
1976      }
1977
1978      if (flags & (content::INVALIDATE_TYPE_TAB |
1979                   content::INVALIDATE_TYPE_TITLE)) {
1980        window_->UpdateTitleBar();
1981      }
1982    }
1983
1984    // Updates that don't depend upon the selected state go here.
1985    if (flags &
1986        (content::INVALIDATE_TYPE_TAB | content::INVALIDATE_TYPE_TITLE)) {
1987      tab_strip_model_->UpdateWebContentsStateAt(
1988          tab_strip_model_->GetIndexOfWebContents(contents),
1989          TabStripModelObserver::ALL);
1990    }
1991
1992    // Update the bookmark bar. It may happen that the tab is crashed, and if
1993    // so, the bookmark bar should be hidden.
1994    if (flags & content::INVALIDATE_TYPE_TAB)
1995      UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
1996
1997    // We don't need to process INVALIDATE_STATE, since that's not visible.
1998  }
1999
2000  scheduled_updates_.clear();
2001}
2002
2003void Browser::RemoveScheduledUpdatesFor(WebContents* contents) {
2004  if (!contents)
2005    return;
2006
2007  UpdateMap::iterator i = scheduled_updates_.find(contents);
2008  if (i != scheduled_updates_.end())
2009    scheduled_updates_.erase(i);
2010}
2011
2012///////////////////////////////////////////////////////////////////////////////
2013// Browser, Getters for UI (private):
2014
2015StatusBubble* Browser::GetStatusBubble() {
2016  // In kiosk and exclusive app mode, we want to always hide the status bubble.
2017  if (chrome::IsRunningInAppMode())
2018    return NULL;
2019
2020  return window_ ? window_->GetStatusBubble() : NULL;
2021}
2022
2023///////////////////////////////////////////////////////////////////////////////
2024// Browser, Session restore functions (private):
2025
2026void Browser::SyncHistoryWithTabs(int index) {
2027  SessionService* session_service =
2028      SessionServiceFactory::GetForProfileIfExisting(profile());
2029  if (session_service) {
2030    for (int i = index; i < tab_strip_model_->count(); ++i) {
2031      WebContents* web_contents = tab_strip_model_->GetWebContentsAt(i);
2032      if (web_contents) {
2033        SessionTabHelper* session_tab_helper =
2034            SessionTabHelper::FromWebContents(web_contents);
2035        session_service->SetTabIndexInWindow(
2036            session_id(), session_tab_helper->session_id(), i);
2037        session_service->SetPinnedState(
2038            session_id(),
2039            session_tab_helper->session_id(),
2040            tab_strip_model_->IsTabPinned(i));
2041      }
2042    }
2043  }
2044}
2045
2046///////////////////////////////////////////////////////////////////////////////
2047// Browser, In-progress download termination handling (private):
2048
2049bool Browser::CanCloseWithInProgressDownloads() {
2050  // If we've prompted, we need to hear from the user before we
2051  // can close.
2052  if (cancel_download_confirmation_state_ != NOT_PROMPTED)
2053    return cancel_download_confirmation_state_ != WAITING_FOR_RESPONSE;
2054
2055  int num_downloads_blocking;
2056  Browser::DownloadClosePreventionType dialog_type =
2057      OkToCloseWithInProgressDownloads(&num_downloads_blocking);
2058  if (dialog_type == DOWNLOAD_CLOSE_OK)
2059    return true;
2060
2061  // Closing this window will kill some downloads; prompt to make sure
2062  // that's ok.
2063  cancel_download_confirmation_state_ = WAITING_FOR_RESPONSE;
2064  window_->ConfirmBrowserCloseWithPendingDownloads(
2065      num_downloads_blocking,
2066      dialog_type,
2067      false,
2068      base::Bind(&Browser::InProgressDownloadResponse,
2069                 weak_factory_.GetWeakPtr()));
2070
2071  // Return false so the browser does not close.  We'll close if the user
2072  // confirms in the dialog.
2073  return false;
2074}
2075
2076///////////////////////////////////////////////////////////////////////////////
2077// Browser, Assorted utility functions (private):
2078
2079void Browser::SetAsDelegate(WebContents* web_contents, Browser* delegate) {
2080  // WebContents...
2081  web_contents->SetDelegate(delegate);
2082
2083  // ...and all the helpers.
2084  BlockedContentTabHelper::FromWebContents(web_contents)->
2085      set_delegate(delegate);
2086  BookmarkTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2087  WebContentsModalDialogManager::FromWebContents(web_contents)->
2088      SetDelegate(delegate);
2089  CoreTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2090  SearchEngineTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2091  ZoomController::FromWebContents(web_contents)->set_observer(delegate);
2092}
2093
2094void Browser::CloseFrame() {
2095  window_->Close();
2096}
2097
2098void Browser::TabDetachedAtImpl(content::WebContents* contents,
2099                                int index,
2100                                DetachType type) {
2101  if (type == DETACH_TYPE_DETACH) {
2102    // Save the current location bar state, but only if the tab being detached
2103    // is the selected tab.  Because saving state can conditionally revert the
2104    // location bar, saving the current tab's location bar state to a
2105    // non-selected tab can corrupt both tabs.
2106    if (contents == tab_strip_model_->GetActiveWebContents()) {
2107      LocationBar* location_bar = window()->GetLocationBar();
2108      if (location_bar)
2109        location_bar->SaveStateToContents(contents);
2110    }
2111
2112    if (!tab_strip_model_->closing_all())
2113      SyncHistoryWithTabs(0);
2114  }
2115
2116  SetAsDelegate(contents, NULL);
2117  RemoveScheduledUpdatesFor(contents);
2118
2119  if (find_bar_controller_.get() && index == tab_strip_model_->active_index()) {
2120    find_bar_controller_->ChangeWebContents(NULL);
2121  }
2122
2123  // Stop observing search model changes for this tab.
2124  search_delegate_->OnTabDetached(contents);
2125
2126  for (size_t i = 0; i < interstitial_observers_.size(); i++) {
2127    if (interstitial_observers_[i]->web_contents() != contents)
2128      continue;
2129
2130    delete interstitial_observers_[i];
2131    interstitial_observers_.erase(interstitial_observers_.begin() + i);
2132    return;
2133  }
2134}
2135
2136bool Browser::SupportsWindowFeatureImpl(WindowFeature feature,
2137                                        bool check_fullscreen) const {
2138  bool hide_ui_for_fullscreen = check_fullscreen && ShouldHideUIForFullscreen();
2139
2140  unsigned int features = FEATURE_INFOBAR | FEATURE_DOWNLOADSHELF;
2141
2142  if (is_type_tabbed())
2143    features |= FEATURE_BOOKMARKBAR;
2144
2145  if (!hide_ui_for_fullscreen) {
2146    if (!is_type_tabbed())
2147      features |= FEATURE_TITLEBAR;
2148
2149    if (is_type_tabbed())
2150      features |= FEATURE_TABSTRIP;
2151
2152    if (is_type_tabbed())
2153      features |= FEATURE_TOOLBAR;
2154
2155    if (!is_app())
2156      features |= FEATURE_LOCATIONBAR;
2157  }
2158  return !!(features & feature);
2159}
2160
2161void Browser::UpdateBookmarkBarState(BookmarkBarStateChangeReason reason) {
2162  BookmarkBar::State state;
2163  // The bookmark bar is hidden in fullscreen mode, unless on the new tab page.
2164  if (browser_defaults::bookmarks_enabled &&
2165      profile_->GetPrefs()->GetBoolean(prefs::kShowBookmarkBar) &&
2166      !ShouldHideUIForFullscreen()) {
2167    state = BookmarkBar::SHOW;
2168  } else {
2169    WebContents* web_contents = tab_strip_model_->GetActiveWebContents();
2170    BookmarkTabHelper* bookmark_tab_helper =
2171        web_contents ? BookmarkTabHelper::FromWebContents(web_contents) : NULL;
2172    if (bookmark_tab_helper && bookmark_tab_helper->ShouldShowBookmarkBar())
2173      state = BookmarkBar::DETACHED;
2174    else
2175      state = BookmarkBar::HIDDEN;
2176  }
2177
2178  if (state == bookmark_bar_state_)
2179    return;
2180
2181  bookmark_bar_state_ = state;
2182
2183  if (!window_)
2184    return;  // This is called from the constructor when window_ is NULL.
2185
2186  if (reason == BOOKMARK_BAR_STATE_CHANGE_TAB_SWITCH) {
2187    // Don't notify BrowserWindow on a tab switch as at the time this is invoked
2188    // BrowserWindow hasn't yet switched tabs. The BrowserWindow implementations
2189    // end up querying state once they process the tab switch.
2190    return;
2191  }
2192
2193  bool shouldAnimate = reason == BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE;
2194  window_->BookmarkBarStateChanged(shouldAnimate ?
2195      BookmarkBar::ANIMATE_STATE_CHANGE :
2196      BookmarkBar::DONT_ANIMATE_STATE_CHANGE);
2197}
2198
2199bool Browser::ShouldHideUIForFullscreen() const {
2200  // Windows and GTK remove the top controls in fullscreen, but Mac and Ash
2201  // keep the controls in a slide-down panel.
2202  return window_ && window_->ShouldHideUIForFullscreen();
2203}
2204
2205bool Browser::MaybeCreateBackgroundContents(
2206    int route_id,
2207    WebContents* opener_web_contents,
2208    const string16& frame_name,
2209    const GURL& target_url,
2210    const std::string& partition_id,
2211    content::SessionStorageNamespace* session_storage_namespace) {
2212  GURL opener_url = opener_web_contents->GetURL();
2213  ExtensionService* extensions_service =
2214      extensions::ExtensionSystem::Get(profile_)->extension_service();
2215
2216  if (!opener_url.is_valid() ||
2217      frame_name.empty() ||
2218      !extensions_service ||
2219      !extensions_service->is_ready())
2220    return false;
2221
2222  // Only hosted apps have web extents, so this ensures that only hosted apps
2223  // can create BackgroundContents. We don't have to check for background
2224  // permission as that is checked in RenderMessageFilter when the CreateWindow
2225  // message is processed.
2226  const Extension* extension =
2227      extensions_service->extensions()->GetHostedAppByURL(opener_url);
2228  if (!extension)
2229    return false;
2230
2231  // No BackgroundContents allowed if BackgroundContentsService doesn't exist.
2232  BackgroundContentsService* service =
2233      BackgroundContentsServiceFactory::GetForProfile(profile_);
2234  if (!service)
2235    return false;
2236
2237  // Ensure that we're trying to open this from the extension's process.
2238  SiteInstance* opener_site_instance = opener_web_contents->GetSiteInstance();
2239  extensions::ProcessMap* process_map = extensions_service->process_map();
2240  if (!opener_site_instance->GetProcess() ||
2241      !process_map->Contains(
2242          extension->id(), opener_site_instance->GetProcess()->GetID())) {
2243    return false;
2244  }
2245
2246  // Only allow a single background contents per app.
2247  bool allow_js_access = extensions::BackgroundInfo::AllowJSAccess(extension);
2248  BackgroundContents* existing =
2249      service->GetAppBackgroundContents(ASCIIToUTF16(extension->id()));
2250  if (existing) {
2251    // For non-scriptable background contents, ignore the request altogether,
2252    // (returning true, so that a regular WebContents isn't created either).
2253    if (!allow_js_access)
2254      return true;
2255    // For scriptable background pages, if one already exists, close it (even
2256    // if it was specified in the manifest).
2257    DLOG(INFO) << "Closing existing BackgroundContents for " << opener_url;
2258    delete existing;
2259  }
2260
2261  // If script access is not allowed, create the the background contents in a
2262  // new SiteInstance, so that a separate process is used.
2263  scoped_refptr<content::SiteInstance> site_instance =
2264      allow_js_access ?
2265      opener_site_instance :
2266      content::SiteInstance::Create(opener_web_contents->GetBrowserContext());
2267
2268  // Passed all the checks, so this should be created as a BackgroundContents.
2269  BackgroundContents* contents =
2270      service->CreateBackgroundContents(site_instance.get(),
2271                                        route_id,
2272                                        profile_,
2273                                        frame_name,
2274                                        ASCIIToUTF16(extension->id()),
2275                                        partition_id,
2276                                        session_storage_namespace);
2277
2278  // When a separate process is used, the original renderer cannot access the
2279  // new window later, thus we need to navigate the window now.
2280  if (contents && !allow_js_access) {
2281    contents->web_contents()->GetController().LoadURL(
2282        target_url,
2283        content::Referrer(),
2284        content::PAGE_TRANSITION_LINK,
2285        std::string());  // No extra headers.
2286  }
2287
2288  return contents != NULL;
2289}
2290