xref: /external/chromium_org/chrome/browser/policy/policy_browsertest.cc

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include <algorithm>
#include <string>
#include <vector>

#include "base/bind.h"
#include "base/bind_helpers.h"
#include "base/callback.h"
#include "base/command_line.h"
#include "base/files/file_enumerator.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/files/scoped_temp_dir.h"
#include "base/memory/ref_counted.h"
#include "base/path_service.h"
#include "base/prefs/pref_service.h"
#include "base/run_loop.h"
#include "base/strings/string16.h"
#include "base/strings/string_util.h"
#include "base/strings/stringprintf.h"
#include "base/strings/utf_string_conversions.h"
#include "base/test/test_file_util.h"
#include "base/threading/sequenced_worker_pool.h"
#include "base/time/time.h"
#include "base/values.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/autocomplete/autocomplete_controller.h"
#include "chrome/browser/background/background_contents_service.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/content_settings/tab_specific_content_settings.h"
#include "chrome/browser/devtools/devtools_window_testing.h"
#include "chrome/browser/download/download_prefs.h"
#include "chrome/browser/extensions/api/messaging/native_message_process_host.h"
#include "chrome/browser/extensions/crx_installer.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/unpacked_installer.h"
#include "chrome/browser/extensions/updater/extension_cache_fake.h"
#include "chrome/browser/extensions/updater/extension_updater.h"
#include "chrome/browser/infobars/infobar_service.h"
#include "chrome/browser/media/media_capture_devices_dispatcher.h"
#include "chrome/browser/media/media_stream_devices_controller.h"
#include "chrome/browser/metrics/variations/variations_service.h"
#include "chrome/browser/net/prediction_options.h"
#include "chrome/browser/net/ssl_config_service_manager.h"
#include "chrome/browser/net/url_request_mock_util.h"
#include "chrome/browser/plugins/plugin_prefs.h"
#include "chrome/browser/policy/cloud/test_request_interceptor.h"
#include "chrome/browser/policy/profile_policy_connector.h"
#include "chrome/browser/policy/profile_policy_connector_factory.h"
#include "chrome/browser/prefs/session_startup_pref.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/search/instant_service.h"
#include "chrome/browser/search/instant_service_factory.h"
#include "chrome/browser/search/search.h"
#include "chrome/browser/search_engines/template_url_service_factory.h"
#include "chrome/browser/translate/chrome_translate_client.h"
#include "chrome/browser/translate/cld_data_harness.h"
#include "chrome/browser/translate/translate_service.h"
#include "chrome/browser/ui/bookmarks/bookmark_bar.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_commands.h"
#include "chrome/browser/ui/browser_list.h"
#include "chrome/browser/ui/browser_tabstrip.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/host_desktop.h"
#include "chrome/browser/ui/location_bar/location_bar.h"
#include "chrome/browser/ui/omnibox/omnibox_edit_model.h"
#include "chrome/browser/ui/omnibox/omnibox_view.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/extensions/extension_constants.h"
#include "chrome/common/pref_names.h"
#include "chrome/common/url_constants.h"
#include "chrome/grit/generated_resources.h"
#include "chrome/test/base/in_process_browser_test.h"
#include "chrome/test/base/test_switches.h"
#include "chrome/test/base/ui_test_utils.h"
#include "components/content_settings/core/common/content_settings.h"
#include "components/content_settings/core/common/content_settings_pattern.h"
#include "components/infobars/core/infobar.h"
#include "components/policy/core/browser/browser_policy_connector.h"
#include "components/policy/core/common/external_data_fetcher.h"
#include "components/policy/core/common/mock_configuration_policy_provider.h"
#include "components/policy/core/common/policy_map.h"
#include "components/policy/core/common/policy_pref_names.h"
#include "components/policy/core/common/policy_service.h"
#include "components/policy/core/common/policy_service_impl.h"
#include "components/search_engines/template_url.h"
#include "components/search_engines/template_url_service.h"
#include "components/translate/core/browser/language_state.h"
#include "components/translate/core/browser/translate_infobar_delegate.h"
#include "content/public/browser/browser_child_process_host_iterator.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/browser_thread.h"
#include "content/public/browser/child_process_data.h"
#include "content/public/browser/download_item.h"
#include "content/public/browser/download_manager.h"
#include "content/public/browser/gpu_data_manager.h"
#include "content/public/browser/notification_details.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/notification_source.h"
#include "content/public/browser/notification_types.h"
#include "content/public/browser/plugin_service.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/web_contents.h"
#include "content/public/common/content_constants.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/process_type.h"
#include "content/public/common/result_codes.h"
#include "content/public/common/url_constants.h"
#include "content/public/common/webplugininfo.h"
#include "content/public/test/browser_test_utils.h"
#include "content/public/test/download_test_observer.h"
#include "content/public/test/mock_notification_observer.h"
#include "content/public/test/test_navigation_observer.h"
#include "content/public/test/test_utils.h"
#include "extensions/browser/extension_host.h"
#include "extensions/browser/extension_system.h"
#include "extensions/browser/process_manager.h"
#include "extensions/browser/uninstall_reason.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
#include "extensions/common/extension_set.h"
#include "net/base/net_errors.h"
#include "net/base/net_util.h"
#include "net/base/url_util.h"
#include "net/http/http_stream_factory.h"
#include "net/ssl/ssl_config.h"
#include "net/ssl/ssl_config_service.h"
#include "net/test/url_request/url_request_failed_job.h"
#include "net/test/url_request/url_request_mock_http_job.h"
#include "net/url_request/url_request.h"
#include "net/url_request/url_request_filter.h"
#include "policy/policy_constants.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "third_party/WebKit/public/web/WebInputEvent.h"
#include "ui/base/l10n/l10n_util.h"
#include "ui/base/page_transition_types.h"
#include "ui/base/resource/resource_bundle.h"
#include "url/gurl.h"

#if defined(OS_CHROMEOS)
#include "ash/accelerators/accelerator_controller.h"
#include "ash/accelerators/accelerator_table.h"
#include "ash/magnifier/magnifier_constants.h"
#include "ash/shell.h"
#include "chrome/browser/chromeos/accessibility/accessibility_manager.h"
#include "chrome/browser/chromeos/accessibility/magnification_manager.h"
#include "chrome/browser/profiles/profile_manager.h"
#include "chrome/browser/ui/ash/screenshot_taker.h"
#include "chromeos/audio/cras_audio_handler.h"
#include "ui/keyboard/keyboard_util.h"
#endif

#if !defined(OS_MACOSX)
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "chrome/browser/ui/extensions/application_launch.h"
#include "extensions/browser/app_window/app_window.h"
#include "extensions/browser/app_window/app_window_registry.h"
#include "extensions/browser/app_window/native_app_window.h"
#include "ui/base/window_open_disposition.h"
#endif

using content::BrowserThread;
using net::URLRequestMockHTTPJob;
using testing::Mock;
using testing::Return;
using testing::_;

namespace policy {

namespace {

#if defined(OS_CHROMEOS)
const int kOneHourInMs = 60 * 60 * 1000;
const int kThreeHoursInMs = 180 * 60 * 1000;
#endif

const char kURL[] = "http://example.com";
const char kCookieValue[] = "converted=true";
// Assigned to Philip J. Fry to fix eventually.
const char kCookieOptions[] = ";expires=Wed Jan 01 3000 00:00:00 GMT";

const base::FilePath::CharType kTestExtensionsDir[] =
    FILE_PATH_LITERAL("extensions");
const base::FilePath::CharType kGoodCrxName[] = FILE_PATH_LITERAL("good.crx");
const base::FilePath::CharType kAdBlockCrxName[] =
    FILE_PATH_LITERAL("adblock.crx");
const base::FilePath::CharType kHostedAppCrxName[] =
    FILE_PATH_LITERAL("hosted_app.crx");

const char kGoodCrxId[] = "ldnnhddmnhbkjipkidpdiheffobcpfmf";
const char kAdBlockCrxId[] = "dojnnbeimaimaojcialkkgajdnefpgcn";
const char kHostedAppCrxId[] = "kbmnembihfiondgfjekmnmcbddelicoi";

const base::FilePath::CharType kGood2CrxManifestName[] =
    FILE_PATH_LITERAL("good2_update_manifest.xml");
const base::FilePath::CharType kGoodV1CrxManifestName[] =
    FILE_PATH_LITERAL("good_v1_update_manifest.xml");
const base::FilePath::CharType kGoodUnpackedExt[] =
    FILE_PATH_LITERAL("good_unpacked");
const base::FilePath::CharType kAppUnpackedExt[] =
    FILE_PATH_LITERAL("app");

#if !defined(OS_MACOSX)
const base::FilePath::CharType kUnpackedFullscreenAppName[] =
    FILE_PATH_LITERAL("fullscreen_app");
#endif  // !defined(OS_MACOSX)

// Filters requests to the hosts in |urls| and redirects them to the test data
// dir through URLRequestMockHTTPJobs.
void RedirectHostsToTestData(const char* const urls[], size_t size) {
  // Map the given hosts to the test data dir.
  net::URLRequestFilter* filter = net::URLRequestFilter::GetInstance();
  base::FilePath base_path;
  PathService::Get(chrome::DIR_TEST_DATA, &base_path);
  for (size_t i = 0; i < size; ++i) {
    const GURL url(urls[i]);
    EXPECT_TRUE(url.is_valid());
    filter->AddUrlInterceptor(url,
                              URLRequestMockHTTPJob::CreateInterceptor(
                                  base_path, BrowserThread::GetBlockingPool()));
  }
}

// Remove filters for requests to the hosts in |urls|.
void UndoRedirectHostsToTestData(const char* const urls[], size_t size) {
  // Map the given hosts to the test data dir.
  net::URLRequestFilter* filter = net::URLRequestFilter::GetInstance();
  for (size_t i = 0; i < size; ++i) {
    const GURL url(urls[i]);
    EXPECT_TRUE(url.is_valid());
    filter->RemoveUrlHandler(url);
  }
}

// Fails requests using ERR_CONNECTION_RESET.
net::URLRequestJob* FailedJobFactory(
    net::URLRequest* request,
    net::NetworkDelegate* network_delegate,
    const std::string& scheme) {
  return new net::URLRequestFailedJob(
      request, network_delegate, net::ERR_CONNECTION_RESET);
}

// While |MakeRequestFail| is in scope URLRequests to |host| will fail.
class MakeRequestFail {
 public:
  // Sets up the filter on IO thread such that requests to |host| fail.
  explicit MakeRequestFail(const std::string& host) : host_(host) {
    BrowserThread::PostTaskAndReply(
        BrowserThread::IO, FROM_HERE,
        base::Bind(MakeRequestFailOnIO, host_),
        base::MessageLoop::QuitClosure());
    content::RunMessageLoop();
  }
  ~MakeRequestFail() {
    BrowserThread::PostTaskAndReply(
        BrowserThread::IO, FROM_HERE,
        base::Bind(UndoMakeRequestFailOnIO, host_),
        base::MessageLoop::QuitClosure());
    content::RunMessageLoop();
  }

 private:
  // Filters requests to the |host| such that they fail. Run on IO thread.
  static void MakeRequestFailOnIO(const std::string& host) {
    net::URLRequestFilter* filter = net::URLRequestFilter::GetInstance();
    filter->AddHostnameHandler("http", host, &FailedJobFactory);
    filter->AddHostnameHandler("https", host, &FailedJobFactory);
  }

  // Remove filters for requests to the |host|. Run on IO thread.
  static void UndoMakeRequestFailOnIO(const std::string& host) {
    net::URLRequestFilter* filter = net::URLRequestFilter::GetInstance();
    filter->RemoveHostnameHandler("http", host);
    filter->RemoveHostnameHandler("https", host);
  }

  const std::string host_;
};

// Verifies that the given url |spec| can be opened. This assumes that |spec|
// points at empty.html in the test data dir.
void CheckCanOpenURL(Browser* browser, const char* spec) {
  GURL url(spec);
  ui_test_utils::NavigateToURL(browser, url);
  content::WebContents* contents =
      browser->tab_strip_model()->GetActiveWebContents();
  ASSERT_EQ(url, contents->GetURL());
  base::string16 spec16 = base::UTF8ToUTF16(url.spec());
  base::string16 title =
      l10n_util::GetStringFUTF16(IDS_ERRORPAGES_TITLE_BLOCKED, spec16);
  ASSERT_NE(title, contents->GetTitle());
}

// Verifies that access to the given url |spec| is blocked.
void CheckURLIsBlocked(Browser* browser, const char* spec) {
  GURL url(spec);
  ui_test_utils::NavigateToURL(browser, url);
  content::WebContents* contents =
      browser->tab_strip_model()->GetActiveWebContents();
  ASSERT_EQ(url, contents->GetURL());
  base::string16 spec16 = base::UTF8ToUTF16(url.spec());
  base::string16 title =
      l10n_util::GetStringFUTF16(IDS_ERRORPAGES_TITLE_BLOCKED, spec16);
  ASSERT_EQ(title, contents->GetTitle());

  // Verify that the expected error page is being displayed.
  bool result = false;
  ASSERT_TRUE(content::ExecuteScriptAndExtractBool(
      contents,
      "var textContent = document.body.textContent;"
      "var hasError = textContent.indexOf('ERR_BLOCKED_BY_ADMINISTRATOR') >= 0;"
      "domAutomationController.send(hasError);",
      &result));
  ASSERT_TRUE(result);
}

// Downloads a file named |file| and expects it to be saved to |dir|, which
// must be empty.
void DownloadAndVerifyFile(
    Browser* browser, const base::FilePath& dir, const base::FilePath& file) {
  content::DownloadManager* download_manager =
      content::BrowserContext::GetDownloadManager(browser->profile());
  content::DownloadTestObserverTerminal observer(
      download_manager, 1,
      content::DownloadTestObserver::ON_DANGEROUS_DOWNLOAD_FAIL);
  GURL url(URLRequestMockHTTPJob::GetMockUrl(file));
  base::FilePath downloaded = dir.Append(file);
  EXPECT_FALSE(base::PathExists(downloaded));
  ui_test_utils::NavigateToURLWithDisposition(
      browser, url, CURRENT_TAB,
      ui_test_utils::BROWSER_TEST_WAIT_FOR_NAVIGATION);
  observer.WaitForFinished();
  EXPECT_EQ(
      1u, observer.NumDownloadsSeenInState(content::DownloadItem::COMPLETE));
  EXPECT_TRUE(base::PathExists(downloaded));
  base::FileEnumerator enumerator(dir, false, base::FileEnumerator::FILES);
  EXPECT_EQ(file, enumerator.Next().BaseName());
  EXPECT_EQ(base::FilePath(), enumerator.Next());
}

#if defined(OS_CHROMEOS)
int CountScreenshots() {
  DownloadPrefs* download_prefs = DownloadPrefs::FromBrowserContext(
      ProfileManager::GetActiveUserProfile());
  base::FileEnumerator enumerator(download_prefs->DownloadPath(),
                                  false, base::FileEnumerator::FILES,
                                  "Screenshot*");
  int count = 0;
  while (!enumerator.Next().empty())
    count++;
  return count;
}
#endif

// Checks if WebGL is enabled in the given WebContents.
bool IsWebGLEnabled(content::WebContents* contents) {
  bool result = false;
  EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
      contents,
      "var canvas = document.createElement('canvas');"
      "var context = canvas.getContext('webgl');"
      "domAutomationController.send(context != null);",
      &result));
  return result;
}

bool IsJavascriptEnabled(content::WebContents* contents) {
  scoped_ptr<base::Value> value = content::ExecuteScriptAndGetValue(
      contents->GetMainFrame(), "123");
  int result = 0;
  if (!value->GetAsInteger(&result))
    EXPECT_EQ(base::Value::TYPE_NULL, value->GetType());
  return result == 123;
}

bool IsNetworkPredictionEnabled(PrefService* prefs) {
  return chrome_browser_net::CanPrefetchAndPrerenderUI(prefs);
}

void CopyPluginListAndQuit(std::vector<content::WebPluginInfo>* out,
                           const std::vector<content::WebPluginInfo>& in) {
  *out = in;
  base::MessageLoop::current()->QuitWhenIdle();
}

template<typename T>
void CopyValueAndQuit(T* out, T in) {
  *out = in;
  base::MessageLoop::current()->QuitWhenIdle();
}

void GetPluginList(std::vector<content::WebPluginInfo>* plugins) {
  content::PluginService* service = content::PluginService::GetInstance();
  service->GetPlugins(base::Bind(CopyPluginListAndQuit, plugins));
  content::RunMessageLoop();
}

const content::WebPluginInfo* GetFlashPlugin(
    const std::vector<content::WebPluginInfo>& plugins) {
  const content::WebPluginInfo* flash = NULL;
  for (size_t i = 0; i < plugins.size(); ++i) {
    if (plugins[i].name == base::ASCIIToUTF16(content::kFlashPluginName)) {
      flash = &plugins[i];
      break;
    }
  }
#if defined(OFFICIAL_BUILD)
  // Official builds bundle Flash.
  EXPECT_TRUE(flash);
#else
  if (!flash)
    LOG(INFO) << "Test skipped because the Flash plugin couldn't be found.";
#endif
  return flash;
}

bool SetPluginEnabled(PluginPrefs* plugin_prefs,
                      const content::WebPluginInfo* plugin,
                      bool enabled) {
  bool ok = false;
  plugin_prefs->EnablePlugin(enabled, plugin->path,
                             base::Bind(CopyValueAndQuit<bool>, &ok));
  content::RunMessageLoop();
  return ok;
}

int CountPluginsOnIOThread() {
  int count = 0;
  for (content::BrowserChildProcessHostIterator iter; !iter.Done(); ++iter) {
    if (iter.GetData().process_type == content::PROCESS_TYPE_PLUGIN ||
        iter.GetData().process_type == content::PROCESS_TYPE_PPAPI_PLUGIN) {
      count++;
    }
  }
  return count;
}

int CountPlugins() {
  int count = -1;
  BrowserThread::PostTaskAndReplyWithResult(
      BrowserThread::IO, FROM_HERE,
      base::Bind(CountPluginsOnIOThread),
      base::Bind(CopyValueAndQuit<int>, &count));
  content::RunMessageLoop();
  EXPECT_GE(count, 0);
  return count;
}

void FlushBlacklistPolicy() {
  // Updates of the URLBlacklist are done on IO, after building the blacklist
  // on the blocking pool, which is initiated from IO.
  content::RunAllPendingInMessageLoop(BrowserThread::IO);
  BrowserThread::GetBlockingPool()->FlushForTesting();
  content::RunAllPendingInMessageLoop(BrowserThread::IO);
}

bool ContainsVisibleElement(content::WebContents* contents,
                            const std::string& id) {
  bool result;
  EXPECT_TRUE(content::ExecuteScriptAndExtractBool(
      contents,
      "var elem = document.getElementById('" + id + "');"
      "domAutomationController.send(!!elem && !elem.hidden);",
      &result));
  return result;
}

#if defined(OS_CHROMEOS)
class TestAudioObserver : public chromeos::CrasAudioHandler::AudioObserver {
 public:
  TestAudioObserver() : output_mute_changed_count_(0) {
  }

  int output_mute_changed_count() const {
    return output_mute_changed_count_;
  }

  virtual ~TestAudioObserver() {}

 protected:
  // chromeos::CrasAudioHandler::AudioObserver overrides.
  virtual void OnOutputMuteChanged() OVERRIDE {
    ++output_mute_changed_count_;
  }

 private:
  int output_mute_changed_count_;

  DISALLOW_COPY_AND_ASSIGN(TestAudioObserver);
};
#endif

// This class waits until either a load stops or the WebContents is destroyed.
class WebContentsLoadedOrDestroyedWatcher
    : public content::WebContentsObserver {
 public:
  explicit WebContentsLoadedOrDestroyedWatcher(
      content::WebContents* web_contents);
  virtual ~WebContentsLoadedOrDestroyedWatcher();

  // Waits until the WebContents's load is done or until it is destroyed.
  void Wait();

  // Overridden WebContentsObserver methods.
  virtual void WebContentsDestroyed() OVERRIDE;
  virtual void DidStopLoading(
      content::RenderViewHost* render_view_host) OVERRIDE;

 private:
  scoped_refptr<content::MessageLoopRunner> message_loop_runner_;

  DISALLOW_COPY_AND_ASSIGN(WebContentsLoadedOrDestroyedWatcher);
};

WebContentsLoadedOrDestroyedWatcher::WebContentsLoadedOrDestroyedWatcher(
    content::WebContents* web_contents)
    : content::WebContentsObserver(web_contents),
      message_loop_runner_(new content::MessageLoopRunner) {
}

WebContentsLoadedOrDestroyedWatcher::~WebContentsLoadedOrDestroyedWatcher() {}

void WebContentsLoadedOrDestroyedWatcher::Wait() {
  message_loop_runner_->Run();
}

void WebContentsLoadedOrDestroyedWatcher::WebContentsDestroyed() {
  message_loop_runner_->Quit();
}

void WebContentsLoadedOrDestroyedWatcher::DidStopLoading(
    content::RenderViewHost* render_view_host) {
  message_loop_runner_->Quit();
}

#if !defined(OS_MACOSX)

// Observer used to wait for the creation of a new app window.
class TestAddAppWindowObserver
    : public extensions::AppWindowRegistry::Observer {
 public:
  explicit TestAddAppWindowObserver(extensions::AppWindowRegistry* registry);
  virtual ~TestAddAppWindowObserver();

  // extensions::AppWindowRegistry::Observer:
  virtual void OnAppWindowAdded(extensions::AppWindow* app_window) OVERRIDE;

  extensions::AppWindow* WaitForAppWindow();

 private:
  extensions::AppWindowRegistry* registry_;  // Not owned.
  extensions::AppWindow* window_;            // Not owned.
  base::RunLoop run_loop_;

  DISALLOW_COPY_AND_ASSIGN(TestAddAppWindowObserver);
};

TestAddAppWindowObserver::TestAddAppWindowObserver(
    extensions::AppWindowRegistry* registry)
    : registry_(registry), window_(NULL) {
  registry_->AddObserver(this);
}

TestAddAppWindowObserver::~TestAddAppWindowObserver() {
  registry_->RemoveObserver(this);
}

void TestAddAppWindowObserver::OnAppWindowAdded(
    extensions::AppWindow* app_window) {
  window_ = app_window;
  run_loop_.Quit();
}

extensions::AppWindow* TestAddAppWindowObserver::WaitForAppWindow() {
  run_loop_.Run();
  return window_;
}

#endif

}  // namespace

class PolicyTest : public InProcessBrowserTest {
 protected:
  PolicyTest() {}
  virtual ~PolicyTest() {}

  virtual void SetUp() OVERRIDE {
    test_extension_cache_.reset(new extensions::ExtensionCacheFake());
    InProcessBrowserTest::SetUp();
  }

  virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
    CommandLine::ForCurrentProcess()->AppendSwitch("noerrdialogs");
    EXPECT_CALL(provider_, IsInitializationComplete(_))
        .WillRepeatedly(Return(true));
    BrowserPolicyConnector::SetPolicyProviderForTesting(&provider_);
  }

  virtual void SetUpOnMainThread() OVERRIDE {
    BrowserThread::PostTask(
        BrowserThread::IO, FROM_HERE,
        base::Bind(chrome_browser_net::SetUrlRequestMocksEnabled, true));
  }

  // Makes URLRequestMockHTTPJobs serve data from content::DIR_TEST_DATA
  // instead of chrome::DIR_TEST_DATA.
  void ServeContentTestData() {
    base::FilePath root_http;
    PathService::Get(content::DIR_TEST_DATA, &root_http);
    BrowserThread::PostTaskAndReply(
        BrowserThread::IO,
        FROM_HERE,
        base::Bind(URLRequestMockHTTPJob::AddUrlHandler,
                   root_http,
                   make_scoped_refptr(BrowserThread::GetBlockingPool())),
        base::MessageLoop::current()->QuitWhenIdleClosure());
    content::RunMessageLoop();
  }

  void SetScreenshotPolicy(bool enabled) {
    PolicyMap policies;
    policies.Set(key::kDisableScreenshots,
                 POLICY_LEVEL_MANDATORY,
                 POLICY_SCOPE_USER,
                 new base::FundamentalValue(!enabled),
                 NULL);
    UpdateProviderPolicy(policies);
  }

#if defined(OS_CHROMEOS)
  class QuitMessageLoopAfterScreenshot : public ScreenshotTakerObserver {
   public:
    virtual void OnScreenshotCompleted(
        ScreenshotTakerObserver::Result screenshot_result,
        const base::FilePath& screenshot_path) OVERRIDE {
      BrowserThread::PostTaskAndReply(BrowserThread::IO,
                                      FROM_HERE,
                                      base::Bind(base::DoNothing),
                                      base::MessageLoop::QuitClosure());
    }

    virtual ~QuitMessageLoopAfterScreenshot() {}
  };

  void TestScreenshotFile(bool enabled) {
    // AddObserver is an ash-specific method, so just replace the screenshot
    // taker with one we've created here.
    scoped_ptr<ScreenshotTaker> screenshot_taker(new ScreenshotTaker);
    // ScreenshotTaker doesn't own this observer, so the observer's lifetime
    // is tied to the test instead.
    screenshot_taker->AddObserver(&observer_);
    ash::Shell::GetInstance()->accelerator_controller()->SetScreenshotDelegate(
        screenshot_taker.PassAs<ash::ScreenshotDelegate>());

    SetScreenshotPolicy(enabled);
    ash::Shell::GetInstance()->accelerator_controller()->PerformAction(
        ash::TAKE_SCREENSHOT, ui::Accelerator());

    content::RunMessageLoop();
  }
#endif

  ExtensionService* extension_service() {
    extensions::ExtensionSystem* system =
        extensions::ExtensionSystem::Get(browser()->profile());
    return system->extension_service();
  }

  const extensions::Extension* InstallExtension(
      const base::FilePath::StringType& name) {
    base::FilePath extension_path(ui_test_utils::GetTestFilePath(
        base::FilePath(kTestExtensionsDir), base::FilePath(name)));
    scoped_refptr<extensions::CrxInstaller> installer =
        extensions::CrxInstaller::CreateSilent(extension_service());
    installer->set_allow_silent_install(true);
    installer->set_install_cause(extension_misc::INSTALL_CAUSE_UPDATE);
    installer->set_creation_flags(extensions::Extension::FROM_WEBSTORE);

    content::WindowedNotificationObserver observer(
        extensions::NOTIFICATION_CRX_INSTALLER_DONE,
        content::NotificationService::AllSources());
    installer->InstallCrx(extension_path);
    observer.Wait();
    content::Details<const extensions::Extension> details = observer.details();
    return details.ptr();
  }

  const extensions::Extension* LoadUnpackedExtension(
      const base::FilePath::StringType& name, bool expect_success) {
    base::FilePath extension_path(ui_test_utils::GetTestFilePath(
        base::FilePath(kTestExtensionsDir), base::FilePath(name)));
    scoped_refptr<extensions::UnpackedInstaller> installer =
        extensions::UnpackedInstaller::Create(extension_service());
    content::WindowedNotificationObserver observer(
        expect_success ? extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED
                       : extensions::NOTIFICATION_EXTENSION_LOAD_ERROR,
        content::NotificationService::AllSources());
    installer->Load(extension_path);
    observer.Wait();

    const extensions::ExtensionSet* extensions =
        extension_service()->extensions();
    for (extensions::ExtensionSet::const_iterator it = extensions->begin();
         it != extensions->end(); ++it) {
      if ((*it)->path() == extension_path)
        return it->get();
    }
    return NULL;
  }

  void UninstallExtension(const std::string& id, bool expect_success) {
    content::WindowedNotificationObserver observer(
        expect_success
            ? extensions::NOTIFICATION_EXTENSION_UNINSTALLED_DEPRECATED
            : extensions::NOTIFICATION_EXTENSION_UNINSTALL_NOT_ALLOWED,
        content::NotificationService::AllSources());
    extension_service()->UninstallExtension(
        id,
        extensions::UNINSTALL_REASON_FOR_TESTING,
        base::Bind(&base::DoNothing),
        NULL);
    observer.Wait();
  }

  void UpdateProviderPolicy(const PolicyMap& policy) {
    provider_.UpdateChromePolicy(policy);
    DCHECK(base::MessageLoop::current());
    base::RunLoop loop;
    loop.RunUntilIdle();
  }

  // Sends a mouse click at the given coordinates to the current renderer.
  void PerformClick(int x, int y) {
    content::WebContents* contents =
        browser()->tab_strip_model()->GetActiveWebContents();
    blink::WebMouseEvent click_event;
    click_event.type = blink::WebInputEvent::MouseDown;
    click_event.button = blink::WebMouseEvent::ButtonLeft;
    click_event.clickCount = 1;
    click_event.x = x;
    click_event.y = y;
    contents->GetRenderViewHost()->ForwardMouseEvent(click_event);
    click_event.type = blink::WebInputEvent::MouseUp;
    contents->GetRenderViewHost()->ForwardMouseEvent(click_event);
  }

  MockConfigurationPolicyProvider provider_;
  scoped_ptr<extensions::ExtensionCacheFake> test_extension_cache_;
#if defined(OS_CHROMEOS)
  QuitMessageLoopAfterScreenshot observer_;
#endif
};

#if defined(OS_WIN)
// This policy only exists on Windows.

// Sets the locale policy before the browser is started.
class LocalePolicyTest : public PolicyTest {
 public:
  LocalePolicyTest() {}
  virtual ~LocalePolicyTest() {}

  virtual void SetUpInProcessBrowserTestFixture() OVERRIDE {
    PolicyTest::SetUpInProcessBrowserTestFixture();
    PolicyMap policies;
    policies.Set(key::kApplicationLocaleValue,
                 POLICY_LEVEL_MANDATORY,
                 POLICY_SCOPE_USER,
                 new base::StringValue("fr"),
                 NULL);
    provider_.UpdateChromePolicy(policies);
    // The "en-US" ResourceBundle is always loaded before this step for tests,
    // but in this test we want the browser to load the bundle as it
    // normally would.
    ResourceBundle::CleanupSharedInstance();
  }
};

IN_PROC_BROWSER_TEST_F(LocalePolicyTest, ApplicationLocaleValue) {
  // Verifies that the default locale can be overridden with policy.
  EXPECT_EQ("fr", g_browser_process->GetApplicationLocale());
  ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUINewTabURL));
  base::string16 french_title = l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE);
  base::string16 title;
  EXPECT_TRUE(ui_test_utils::GetCurrentTabTitle(browser(), &title));
  EXPECT_EQ(french_title, title);

  // Make sure this is really French and differs from the English title.
  std::string loaded =
      ui::ResourceBundle::GetSharedInstance().ReloadLocaleResources("en-US");
  EXPECT_EQ("en-US", loaded);
  base::string16 english_title = l10n_util::GetStringUTF16(IDS_NEW_TAB_TITLE);
  EXPECT_NE(french_title, english_title);
}
#endif

IN_PROC_BROWSER_TEST_F(PolicyTest, BookmarkBarEnabled) {
#if defined(OS_WIN) && defined(USE_ASH)
  // Disable this test in Metro+Ash for now (http://crbug.com/262796).
  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kAshBrowserTests))
    return;
#endif

  // Verifies that the bookmarks bar can be forced to always or never show up.

  // Test starts in about:blank.
  PrefService* prefs = browser()->profile()->GetPrefs();
  EXPECT_FALSE(prefs->IsManagedPreference(bookmarks::prefs::kShowBookmarkBar));
  EXPECT_FALSE(prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar));
  EXPECT_EQ(BookmarkBar::HIDDEN, browser()->bookmark_bar_state());

  PolicyMap policies;
  policies.Set(key::kBookmarkBarEnabled,
               POLICY_LEVEL_MANDATORY,
               POLICY_SCOPE_USER,
               new base::FundamentalValue(true),
               NULL);
  UpdateProviderPolicy(policies);
  EXPECT_TRUE(prefs->IsManagedPreference(bookmarks::prefs::kShowBookmarkBar));
  EXPECT_TRUE(prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar));
  EXPECT_EQ(BookmarkBar::SHOW, browser()->bookmark_bar_state());

  // The NTP has special handling of the bookmark bar.
  ui_test_utils::NavigateToURL(browser(), GURL(chrome::kChromeUINewTabURL));
  EXPECT_EQ(BookmarkBar::SHOW, browser()->bookmark_bar_state());

  policies.Set(key::kBookmarkBarEnabled,
               POLICY_LEVEL_MANDATORY,
               POLICY_SCOPE_USER,
               new base::FundamentalValue(false),
               NULL);
  UpdateProviderPolicy(policies);
  EXPECT_TRUE(prefs->IsManagedPreference(bookmarks::prefs::kShowBookmarkBar));
  EXPECT_FALSE(prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar));
  // The bookmark bar is hidden in the NTP when disabled by policy.
  EXPECT_EQ(BookmarkBar::HIDDEN, browser()->bookmark_bar_state());

  policies.Clear();
  UpdateProviderPolicy(policies);
  EXPECT_FALSE(prefs->IsManagedPreference(bookmarks::prefs::kShowBookmarkBar));
  EXPECT_FALSE(prefs->GetBoolean(bookmarks::prefs::kShowBookmarkBar));
  // The bookmark bar is shown detached in the NTP, when disabled by prefs only.
  EXPECT_EQ(BookmarkBar::DETACHED, browser()->bookmark_bar_state());
}

IN_PROC_BROWSER_TEST_F(PolicyTest, PRE_PRE_DefaultCookiesSetting) {
  // Verifies that cookies are deleted on shutdown. This test is split in 3
  // parts because it spans 2 browser restarts.

  Profile* profile = browser()->profile();
  GURL url(kURL);
  // No cookies at startup.
  EXPECT_TRUE(content::GetCookies(profile, url).empty());
  // Set a cookie now.
  std::string value = std::string(kCookieValue) + std::string(kCookieOptions);
  EXPECT_TRUE(content::SetCookie(profile, url, value));
  // Verify it was set.
  EXPECT_EQ(kCookieValue, GetCookies(profile, url));
}

IN_PROC_BROWSER_TEST_F(PolicyTest, PRE_DefaultCookiesSetting) {
  // Verify that the cookie persists across restarts.
  EXPECT_EQ(kCookieValue, GetCookies(browser()->profile(), GURL(kURL)));
  // Now set the policy and the cookie should be gone after another restart.
  PolicyMap policies;
  policies.Set(key::kDefaultCookiesSetting,
               POLICY_LEVEL_MANDATORY,
               POLICY_SCOPE_USER,
               new base::FundamentalValue(4),
               NULL);
  UpdateProviderPolicy(policies);
}

IN_PROC_BROWSER_TEST_F(PolicyTest, DefaultCookiesSetting) {
  // Verify that the cookie is gone.
  EXPECT_TRUE(GetCookies(browser()->profile(), GURL(kURL)).empty());
}

IN_PROC_BROWSER_TEST_F(PolicyTest, DefaultSearchProvider) {
  MakeRequestFail make_request_fail("search.example");

  // Verifies that a default search is made using the provider configured via
  // policy. Also checks that default search can be completely disabled.
  const base::string16 kKeyword(base::ASCIIToUTF16("testsearch"));
  const std::string kSearchURL("http://search.example/search?q={searchTerms}");
  const std::string kAlternateURL0(
      "http://search.example/search#q={searchTerms}");
  const std::string kAlternateURL1("http://search.example/#q={searchTerms}");
  const std::string kSearchTermsReplacementKey("zekey");
  const std::string kImageURL("http://test.com/searchbyimage/upload");
  const std::string kImageURLPostParams(
      "image_content=content,image_url=http://test.com/test.png");
  const std::string kNewTabURL("http://search.example/newtab");

  TemplateURLService* service = TemplateURLServiceFactory::GetForProfile(
      browser()->profile());
  ui_test_utils::WaitForTemplateURLServiceToLoad(service);
  TemplateURL* default_search = service->GetDefaultSearchProvider();
  ASSERT_TRUE(default_search);
  EXPECT_NE(kKeyword, default_search->keyword());
  EXPECT_NE(kSearchURL, default_search->url());
  EXPECT_FALSE(
    default_search->alternate_urls().size() == 2 &&
    default_search->alternate_urls()[0] == kAlternateURL0 &&
    default_search->alternate_urls()[1] == kAlternateURL1 &&
    default_search->search_terms_replacement_key() ==
        kSearchTermsReplacementKey &&
    default_search->image_url() == kImageURL &&
    default_search->image_url_post_params() == kImageURLPostParams &&
    default_search->new_tab_url() == kNewTabURL);

  // Override the default search provider using policies.
  PolicyMap policies;
  policies.Set(key::kDefaultSearchProviderEnabled,
               POLICY_LEVEL_MANDATORY,
               POLICY_SCOPE_USER,
               new base::FundamentalValue(true),
               NULL);
  policies.Set(key::kDefaultSearchProviderKeyword,
               POLICY_LEVEL_MANDATORY,
               POLICY_SCOPE_USER,
               new base::StringValue(kKeyword),