chrome/browser/ui/browser.cc

   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/prefs/pref_service.h"
  21 #include "base/process/process_info.h"
  22 #include "base/profiler/scoped_tracker.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.h"
  34 #include "chrome/browser/background/background_contents_service.h"
  35 #include "chrome/browser/background/background_contents_service_factory.h"
  36 #include "chrome/browser/browser_process.h"
  37 #include "chrome/browser/browser_shutdown.h"
  38 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  39 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  40 #include "chrome/browser/character_encoding.h"
  41 #include "chrome/browser/chrome_notification_types.h"
  42 #include "chrome/browser/content_settings/tab_specific_content_settings.h"
  43 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
  44 #include "chrome/browser/custom_handlers/protocol_handler_registry_factory.h"
  45 #include "chrome/browser/custom_handlers/register_protocol_handler_infobar_delegate.h"
  46 #include "chrome/browser/custom_handlers/register_protocol_handler_permission_request.h"
  47 #include "chrome/browser/defaults.h"
  48 #include "chrome/browser/devtools/devtools_toggle_action.h"
  49 #include "chrome/browser/devtools/devtools_window.h"
  50 #include "chrome/browser/download/download_item_model.h"
  51 #include "chrome/browser/download/download_service.h"
  52 #include "chrome/browser/download/download_service_factory.h"
  53 #include "chrome/browser/download/download_shelf.h"
  54 #include "chrome/browser/extensions/api/tabs/tabs_event_router.h"
  55 #include "chrome/browser/extensions/api/tabs/tabs_windows_api.h"
  56 #include "chrome/browser/extensions/browser_extension_window_controller.h"
  57 #include "chrome/browser/extensions/extension_service.h"
  58 #include "chrome/browser/extensions/extension_ui_util.h"
  59 #include "chrome/browser/extensions/extension_util.h"
  60 #include "chrome/browser/extensions/tab_helper.h"
  61 #include "chrome/browser/favicon/favicon_tab_helper.h"
  62 #include "chrome/browser/file_select_helper.h"
  63 #include "chrome/browser/first_run/first_run.h"
  64 #include "chrome/browser/history/top_sites_factory.h"
  65 #include "chrome/browser/infobars/infobar_service.h"
  66 #include "chrome/browser/lifetime/application_lifetime.h"
  67 #include "chrome/browser/notifications/notification_ui_manager.h"
  68 #include "chrome/browser/pepper_broker_infobar_delegate.h"
  69 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  70 #include "chrome/browser/profiles/profile.h"
  71 #include "chrome/browser/profiles/profile_destroyer.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/tab_restore_service.h"
  79 #include "chrome/browser/sessions/tab_restore_service_factory.h"
  80 #include "chrome/browser/sync/profile_sync_service.h"
  81 #include "chrome/browser/sync/profile_sync_service_factory.h"
  82 #include "chrome/browser/sync/sync_ui_util.h"
  83 #include "chrome/browser/tab_contents/retargeting_details.h"
  84 #include "chrome/browser/tab_contents/tab_util.h"
  85 #include "chrome/browser/themes/theme_service.h"
  86 #include "chrome/browser/themes/theme_service_factory.h"
  87 #include "chrome/browser/translate/chrome_translate_client.h"
  88 #include "chrome/browser/ui/autofill/chrome_autofill_client.h"
  89 #include "chrome/browser/ui/blocked_content/popup_blocker_tab_helper.h"
  90 #include "chrome/browser/ui/bookmarks/bookmark_tab_helper.h"
  91 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
  92 #include "chrome/browser/ui/browser_command_controller.h"
  93 #include "chrome/browser/ui/browser_commands.h"
  94 #include "chrome/browser/ui/browser_content_setting_bubble_model_delegate.h"
  95 #include "chrome/browser/ui/browser_dialogs.h"
  96 #include "chrome/browser/ui/browser_finder.h"
  97 #include "chrome/browser/ui/browser_instant_controller.h"
  98 #include "chrome/browser/ui/browser_iterator.h"
  99 #include "chrome/browser/ui/browser_list.h"
 100 #include "chrome/browser/ui/browser_navigator.h"
 101 #include "chrome/browser/ui/browser_tab_restore_service_delegate.h"
 102 #include "chrome/browser/ui/browser_tab_strip_model_delegate.h"
 103 #include "chrome/browser/ui/browser_tabstrip.h"
 104 #include "chrome/browser/ui/browser_toolbar_model_delegate.h"
 105 #include "chrome/browser/ui/browser_ui_prefs.h"
 106 #include "chrome/browser/ui/browser_window.h"
 107 #include "chrome/browser/ui/chrome_pages.h"
 108 #include "chrome/browser/ui/chrome_select_file_policy.h"
 109 #include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
 110 #include "chrome/browser/ui/exclusive_access/mouse_lock_controller.h"
 111 #include "chrome/browser/ui/fast_unload_controller.h"
 112 #include "chrome/browser/ui/find_bar/find_bar.h"
 113 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
 114 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
 115 #include "chrome/browser/ui/global_error/global_error.h"
 116 #include "chrome/browser/ui/global_error/global_error_service.h"
 117 #include "chrome/browser/ui/global_error/global_error_service_factory.h"
 118 #include "chrome/browser/ui/location_bar/location_bar.h"
 119 #include "chrome/browser/ui/media_utils.h"
 120 #include "chrome/browser/ui/search/search_delegate.h"
 121 #include "chrome/browser/ui/search/search_model.h"
 122 #include "chrome/browser/ui/search/search_tab_helper.h"
 123 #include "chrome/browser/ui/search_engines/search_engine_tab_helper.h"
 124 #include "chrome/browser/ui/settings_window_manager.h"
 125 #include "chrome/browser/ui/singleton_tabs.h"
 126 #include "chrome/browser/ui/status_bubble.h"
 127 #include "chrome/browser/ui/sync/browser_synced_window_delegate.h"
 128 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
 129 #include "chrome/browser/ui/tab_dialogs.h"
 130 #include "chrome/browser/ui/tab_helpers.h"
 131 #include "chrome/browser/ui/tab_modal_confirm_dialog.h"
 132 #include "chrome/browser/ui/tabs/tab_menu_model.h"
 133 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 134 #include "chrome/browser/ui/tabs/tab_strip_model_utils.h"
 135 #include "chrome/browser/ui/toolbar/toolbar_model_impl.h"
 136 #include "chrome/browser/ui/unload_controller.h"
 137 #include "chrome/browser/ui/validation_message_bubble.h"
 138 #include "chrome/browser/ui/website_settings/permission_bubble_manager.h"
 139 #include "chrome/browser/ui/webui/signin/login_ui_service.h"
 140 #include "chrome/browser/ui/webui/signin/login_ui_service_factory.h"
 141 #include "chrome/browser/ui/window_sizer/window_sizer.h"
 142 #include "chrome/browser/upgrade_detector.h"
 143 #include "chrome/browser/web_applications/web_app.h"
 144 #include "chrome/common/chrome_constants.h"
 145 #include "chrome/common/chrome_switches.h"
 146 #include "chrome/common/custom_handlers/protocol_handler.h"
 147 #include "chrome/common/pref_names.h"
 148 #include "chrome/common/profiling.h"
 149 #include "chrome/common/search_types.h"
 150 #include "chrome/common/url_constants.h"
 151 #include "chrome/grit/chromium_strings.h"
 152 #include "chrome/grit/generated_resources.h"
 153 #include "chrome/grit/locale_settings.h"
 154 #include "components/app_modal/javascript_dialog_manager.h"
 155 #include "components/bookmarks/browser/bookmark_model.h"
 156 #include "components/bookmarks/browser/bookmark_utils.h"
 157 #include "components/content_settings/core/browser/host_content_settings_map.h"
 158 #include "components/history/core/browser/top_sites.h"
 159 #include "components/infobars/core/simple_alert_infobar_delegate.h"
 160 #include "components/search/search.h"
 161 #include "components/sessions/session_types.h"
 162 #include "components/startup_metric_utils/startup_metric_utils.h"
 163 #include "components/translate/core/browser/language_state.h"
 164 #include "components/ui/zoom/zoom_controller.h"
 165 #include "components/web_modal/popup_manager.h"
 166 #include "components/web_modal/web_contents_modal_dialog_manager.h"
 167 #include "content/public/browser/devtools_agent_host.h"
 168 #include "content/public/browser/download_item.h"
 169 #include "content/public/browser/download_manager.h"
 170 #include "content/public/browser/interstitial_page.h"
 171 #include "content/public/browser/invalidate_type.h"
 172 #include "content/public/browser/navigation_controller.h"
 173 #include "content/public/browser/navigation_entry.h"
 174 #include "content/public/browser/notification_details.h"
 175 #include "content/public/browser/notification_service.h"
 176 #include "content/public/browser/plugin_service.h"
 177 #include "content/public/browser/render_process_host.h"
 178 #include "content/public/browser/render_view_host.h"
 179 #include "content/public/browser/render_widget_host_view.h"
 180 #include "content/public/browser/site_instance.h"
 181 #include "content/public/browser/user_metrics.h"
 182 #include "content/public/browser/web_contents.h"
 183 #include "content/public/common/content_switches.h"
 184 #include "content/public/common/page_zoom.h"
 185 #include "content/public/common/renderer_preferences.h"
 186 #include "content/public/common/webplugininfo.h"
 187 #include "extensions/browser/extension_prefs.h"
 188 #include "extensions/browser/extension_registry.h"
 189 #include "extensions/browser/extension_system.h"
 190 #include "extensions/common/constants.h"
 191 #include "extensions/common/extension.h"
 192 #include "extensions/common/manifest_handlers/background_info.h"
 193 #include "net/base/filename_util.h"
 194 #include "net/base/registry_controlled_domains/registry_controlled_domain.h"
 195 #include "net/cookies/cookie_monster.h"
 196 #include "net/url_request/url_request_context.h"
 197 #include "third_party/WebKit/public/web/WebWindowFeatures.h"
 198 #include "ui/base/l10n/l10n_util.h"
 199 #include "ui/base/window_open_disposition.h"
 200 #include "ui/gfx/geometry/point.h"
 201 #include "ui/shell_dialogs/selected_file_info.h"
 202
 203 #if defined(OS_WIN)
 204 #include "base/win/metro.h"
 205 #include "chrome/browser/ssl/ssl_error_info.h"
 206 #include "chrome/browser/task_manager/task_manager.h"
 207 #include "chrome/browser/ui/view_ids.h"
 208 #include "components/autofill/core/browser/autofill_ie_toolbar_import_win.h"
 209 #include "components/browser_watcher/exit_funnel_win.h"
 210 #include "ui/base/touch/touch_device.h"
 211 #include "ui/base/win/shell.h"
 212 #endif  // OS_WIN
 213
 214 #if defined(OS_CHROMEOS)
 215 #include "chrome/browser/chromeos/fileapi/external_file_url_util.h"
 216 #endif
 217
 218 #if defined(USE_ASH)
 219 #include "ash/ash_switches.h"
 220 #endif
 221
 222 using base::TimeDelta;
 223 using base::UserMetricsAction;
 224 using content::NativeWebKeyboardEvent;
 225 using content::NavigationController;
 226 using content::NavigationEntry;
 227 using content::OpenURLParams;
 228 using content::PluginService;
 229 using content::Referrer;
 230 using content::RenderWidgetHostView;
 231 using content::SiteInstance;
 232 using content::WebContents;
 233 using extensions::Extension;
 234 using ui::WebDialogDelegate;
 235 using web_modal::WebContentsModalDialogManager;
 236 using blink::WebWindowFeatures;
 237
 238 ///////////////////////////////////////////////////////////////////////////////
 239
 240 namespace {
 241
 242 // How long we wait before updating the browser chrome while loading a page.
 243 const int kUIUpdateCoalescingTimeMS = 200;
 244
 245 BrowserWindow* CreateBrowserWindow(Browser* browser) {
 246   return BrowserWindow::CreateBrowserWindow(browser);
 247 }
 248
 249 // Is the fast tab unload experiment enabled?
 250 bool IsFastTabUnloadEnabled() {
 251   return base::CommandLine::ForCurrentProcess()->HasSwitch(
 252       switches::kEnableFastUnload);
 253 }
 254
 255 bool IsWebAppFrameEnabled() {
 256   return base::CommandLine::ForCurrentProcess()->HasSwitch(
 257       switches::kEnableWebAppFrame);
 258 }
 259
 260 }  // namespace
 261
 262 ////////////////////////////////////////////////////////////////////////////////
 263 // Browser, CreateParams:
 264
 265 Browser::CreateParams::CreateParams(Profile* profile,
 266                                     chrome::HostDesktopType host_desktop_type)
 267     : type(TYPE_TABBED),
 268       profile(profile),
 269       host_desktop_type(host_desktop_type),
 270       trusted_source(false),
 271       initial_show_state(ui::SHOW_STATE_DEFAULT),
 272       is_session_restore(false),
 273       window(NULL) {
 274 }
 275
 276 Browser::CreateParams::CreateParams(Type type,
 277                                     Profile* profile,
 278                                     chrome::HostDesktopType host_desktop_type)
 279     : type(type),
 280       profile(profile),
 281       host_desktop_type(host_desktop_type),
 282       trusted_source(false),
 283       initial_show_state(ui::SHOW_STATE_DEFAULT),
 284       is_session_restore(false),
 285       window(NULL) {
 286 }
 287
 288 // static
 289 Browser::CreateParams Browser::CreateParams::CreateForApp(
 290     const std::string& app_name,
 291     bool trusted_source,
 292     const gfx::Rect& window_bounds,
 293     Profile* profile,
 294     chrome::HostDesktopType host_desktop_type) {
 295   DCHECK(!app_name.empty());
 296
 297   CreateParams params(TYPE_POPUP, profile, host_desktop_type);
 298   params.app_name = app_name;
 299   params.trusted_source = trusted_source;
 300   params.initial_bounds = window_bounds;
 301
 302   return params;
 303 }
 304
 305 // static
 306 Browser::CreateParams Browser::CreateParams::CreateForDevTools(
 307     Profile* profile,
 308     chrome::HostDesktopType host_desktop_type) {
 309   CreateParams params(TYPE_POPUP, profile, host_desktop_type);
 310   params.app_name = DevToolsWindow::kDevToolsApp;
 311   params.trusted_source = true;
 312   return params;
 313 }
 314
 315 ////////////////////////////////////////////////////////////////////////////////
 316 // Browser, InterstitialObserver:
 317
 318 class Browser::InterstitialObserver : public content::WebContentsObserver {
 319  public:
 320   InterstitialObserver(Browser* browser, content::WebContents* web_contents)
 321       : WebContentsObserver(web_contents),
 322         browser_(browser) {
 323   }
 324
 325   void DidAttachInterstitialPage() override {
 326     browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
 327   }
 328
 329   void DidDetachInterstitialPage() override {
 330     browser_->UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
 331   }
 332
 333  private:
 334   Browser* browser_;
 335
 336   DISALLOW_COPY_AND_ASSIGN(InterstitialObserver);
 337 };
 338
 339 ///////////////////////////////////////////////////////////////////////////////
 340 // Browser, Constructors, Creation, Showing:
 341
 342 Browser::Browser(const CreateParams& params)
 343     : extension_registry_observer_(this),
 344       type_(params.type),
 345       profile_(params.profile),
 346       window_(NULL),
 347       tab_strip_model_delegate_(new chrome::BrowserTabStripModelDelegate(this)),
 348       tab_strip_model_(
 349           new TabStripModel(tab_strip_model_delegate_.get(), params.profile)),
 350       app_name_(params.app_name),
 351       is_trusted_source_(params.trusted_source),
 352       cancel_download_confirmation_state_(NOT_PROMPTED),
 353       override_bounds_(params.initial_bounds),
 354       initial_show_state_(params.initial_show_state),
 355       is_session_restore_(params.is_session_restore),
 356       host_desktop_type_(
 357           BrowserWindow::AdjustHostDesktopType(params.host_desktop_type)),
 358       content_setting_bubble_model_delegate_(
 359           new BrowserContentSettingBubbleModelDelegate(this)),
 360       toolbar_model_delegate_(new BrowserToolbarModelDelegate(this)),
 361       tab_restore_service_delegate_(new BrowserTabRestoreServiceDelegate(this)),
 362       synced_window_delegate_(new BrowserSyncedWindowDelegate(this)),
 363       bookmark_bar_state_(BookmarkBar::HIDDEN),
 364       command_controller_(new chrome::BrowserCommandController(this)),
 365       window_has_shown_(false),
 366       chrome_updater_factory_(this),
 367       weak_factory_(this) {
 368   // If this causes a crash then a window is being opened using a profile type
 369   // that is disallowed by policy. The crash prevents the disabled window type
 370   // from opening at all, but the path that triggered it should be fixed.
 371   CHECK(IncognitoModePrefs::CanOpenBrowser(profile_));
 372   CHECK(!profile_->IsGuestSession() || profile_->IsOffTheRecord())
 373       << "Only off the record browser may be opened in guest mode";
 374
 375   // TODO(jeremy): Move to initializer list once flag is removed.
 376   if (IsFastTabUnloadEnabled())
 377     fast_unload_controller_.reset(new chrome::FastUnloadController(this));
 378   else
 379     unload_controller_.reset(new chrome::UnloadController(this));
 380
 381   tab_strip_model_->AddObserver(this);
 382
 383   toolbar_model_.reset(new ToolbarModelImpl(toolbar_model_delegate_.get()));
 384   search_model_.reset(new SearchModel());
 385   search_delegate_.reset(new SearchDelegate(search_model_.get()));
 386
 387   extension_registry_observer_.Add(
 388       extensions::ExtensionRegistry::Get(profile_));
 389   registrar_.Add(this,
 390                  extensions::NOTIFICATION_EXTENSION_PROCESS_TERMINATED,
 391                  content::NotificationService::AllSources());
 392 #if defined(ENABLE_THEMES)
 393   registrar_.Add(
 394       this, chrome::NOTIFICATION_BROWSER_THEME_CHANGED,
 395       content::Source<ThemeService>(
 396           ThemeServiceFactory::GetForProfile(profile_)));
 397 #endif
 398   registrar_.Add(this, chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED,
 399                  content::NotificationService::AllSources());
 400
 401   profile_pref_registrar_.Init(profile_->GetPrefs());
 402   profile_pref_registrar_.Add(
 403       prefs::kDevToolsDisabled,
 404       base::Bind(&Browser::OnDevToolsDisabledChanged, base::Unretained(this)));
 405   profile_pref_registrar_.Add(
 406       bookmarks::prefs::kShowBookmarkBar,
 407       base::Bind(&Browser::UpdateBookmarkBarState, base::Unretained(this),
 408                  BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE));
 409
 410   BrowserList::AddBrowser(this);
 411
 412   // NOTE: These prefs all need to be explicitly destroyed in the destructor
 413   // or you'll get a nasty surprise when you run the incognito tests.
 414   encoding_auto_detect_.Init(prefs::kWebKitUsesUniversalDetector,
 415                              profile_->GetPrefs());
 416
 417   if (chrome::IsInstantExtendedAPIEnabled() && is_type_tabbed())
 418     instant_controller_.reset(new BrowserInstantController(this));
 419
 420   UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_INIT);
 421
 422   ProfileMetrics::LogProfileLaunch(profile_);
 423
 424   window_ = params.window ? params.window : CreateBrowserWindow(this);
 425
 426   // Create the extension window controller before sending notifications.
 427   extension_window_controller_.reset(
 428       new BrowserExtensionWindowController(this));
 429
 430   SessionService* session_service =
 431       SessionServiceFactory::GetForProfileForSessionRestore(profile_);
 432   if (session_service)
 433     session_service->WindowOpened(this);
 434
 435   // TODO(beng): Move BrowserList::AddBrowser() to the end of this function and
 436   //             replace uses of this with BL's notifications.
 437   content::NotificationService::current()->Notify(
 438       chrome::NOTIFICATION_BROWSER_WINDOW_READY,
 439       content::Source<Browser>(this),
 440       content::NotificationService::NoDetails());
 441
 442   // TODO(beng): move to ChromeBrowserMain:
 443   if (first_run::ShouldDoPersonalDataManagerFirstRun()) {
 444 #if defined(OS_WIN)
 445     // Notify PDM that this is a first run.
 446     ImportAutofillDataWin(
 447         autofill::PersonalDataManagerFactory::GetForProfile(profile_));
 448 #endif  // defined(OS_WIN)
 449   }
 450
 451   exclusive_access_manager_.reset(
 452       new ExclusiveAccessManager(window_->GetExclusiveAccessContext()));
 453
 454   // Must be initialized after window_.
 455   // Also: surprise! a modal dialog host is not necessary to host modal dialogs
 456   // without a modal dialog host, so that value may be null.
 457   popup_manager_.reset(new web_modal::PopupManager(
 458       GetWebContentsModalDialogHost()));
 459 }
 460
 461 Browser::~Browser() {
 462   // Stop observing notifications before continuing with destruction. Profile
 463   // destruction will unload extensions and reentrant calls to Browser:: should
 464   // be avoided while it is being torn down.
 465   registrar_.RemoveAll();
 466   extension_registry_observer_.RemoveAll();
 467
 468   // The tab strip should not have any tabs at this point.
 469   DCHECK(tab_strip_model_->empty());
 470   tab_strip_model_->RemoveObserver(this);
 471
 472   // Destroy the BrowserCommandController before removing the browser, so that
 473   // it doesn't act on any notifications that are sent as a result of removing
 474   // the browser.
 475   command_controller_.reset();
 476   BrowserList::RemoveBrowser(this);
 477
 478   SessionService* session_service =
 479       SessionServiceFactory::GetForProfile(profile_);
 480   if (session_service)
 481     session_service->WindowClosed(session_id_);
 482
 483   TabRestoreService* tab_restore_service =
 484       TabRestoreServiceFactory::GetForProfile(profile());
 485   if (tab_restore_service)
 486     tab_restore_service->BrowserClosed(tab_restore_service_delegate());
 487
 488 #if !defined(OS_MACOSX)
 489   if (!chrome::GetTotalBrowserCountForProfile(profile_)) {
 490     // We're the last browser window with this profile. We need to nuke the
 491     // TabRestoreService, which will start the shutdown of the
 492     // NavigationControllers and allow for proper shutdown. If we don't do this
 493     // chrome won't shutdown cleanly, and may end up crashing when some
 494     // thread tries to use the IO thread (or another thread) that is no longer
 495     // valid.
 496     // This isn't a valid assumption for Mac OS, as it stays running after
 497     // the last browser has closed. The Mac equivalent is in its app
 498     // controller.
 499     TabRestoreServiceFactory::ResetForProfile(profile_);
 500   }
 501 #endif
 502
 503   profile_pref_registrar_.RemoveAll();
 504
 505   encoding_auto_detect_.Destroy();
 506
 507   // Destroy BrowserExtensionWindowController before the incognito profile
 508   // is destroyed to make sure the chrome.windows.onRemoved event is sent.
 509   extension_window_controller_.reset();
 510
 511   // Destroy BrowserInstantController before the incongnito profile is destroyed
 512   // because the InstantController destructor depends on this profile.
 513   instant_controller_.reset();
 514
 515   if (profile_->IsOffTheRecord() &&
 516       !BrowserList::IsOffTheRecordSessionActiveForProfile(profile_)) {
 517     if (profile_->IsGuestSession()) {
 518 // ChromeOS handles guest data independently.
 519 #if !defined(OS_CHROMEOS)
 520       // Clear all browsing data once a Guest Session completes. The Guest
 521       // profile has BrowserContextKeyedServices that the Incognito profile
 522       // doesn't, so the ProfileDestroyer can't delete it properly.
 523       // TODO(mlerman): Delete the guest using an improved ProfileDestroyer.
 524       BrowsingDataRemover* data_remover =
 525           BrowsingDataRemover::CreateForUnboundedRange(profile_);
 526       data_remover->Remove(BrowsingDataRemover::REMOVE_ALL,
 527                            BrowsingDataHelper::ALL);
 528       // BrowsingDataRemover deletes itself.
 529 #endif
 530     } else {
 531       // An incognito profile is no longer needed, this indirectly frees
 532       // its cache and cookies once it gets destroyed at the appropriate time.
 533       ProfileDestroyer::DestroyProfileWhenAppropriate(profile_);
 534     }
 535   }
 536
 537   // There may be pending file dialogs, we need to tell them that we've gone
 538   // away so they don't try and call back to us.
 539   if (select_file_dialog_.get())
 540     select_file_dialog_->ListenerDestroyed();
 541
 542   int num_downloads;
 543   if (OkToCloseWithInProgressDownloads(&num_downloads) ==
 544           DOWNLOAD_CLOSE_BROWSER_SHUTDOWN &&
 545       !browser_defaults::kBrowserAliveWithNoWindows) {
 546     DownloadService::CancelAllDownloads();
 547   }
 548 }
 549
 550 ///////////////////////////////////////////////////////////////////////////////
 551 // Getters & Setters
 552
 553 FindBarController* Browser::GetFindBarController() {
 554   if (!find_bar_controller_.get()) {
 555     FindBar* find_bar = window_->CreateFindBar();
 556     find_bar_controller_.reset(new FindBarController(find_bar));
 557     find_bar->SetFindBarController(find_bar_controller_.get());
 558     find_bar_controller_->ChangeWebContents(
 559         tab_strip_model_->GetActiveWebContents());
 560     find_bar_controller_->find_bar()->MoveWindowIfNecessary(gfx::Rect());
 561   }
 562   return find_bar_controller_.get();
 563 }
 564
 565 bool Browser::HasFindBarController() const {
 566   return find_bar_controller_.get() != NULL;
 567 }
 568
 569 bool Browser::is_app() const {
 570   return !app_name_.empty();
 571 }
 572
 573 bool Browser::is_devtools() const {
 574   return app_name_ == DevToolsWindow::kDevToolsApp;
 575 }
 576
 577 ///////////////////////////////////////////////////////////////////////////////
 578 // Browser, State Storage and Retrieval for UI:
 579
 580 gfx::Image Browser::GetCurrentPageIcon() const {
 581   WebContents* web_contents = tab_strip_model_->GetActiveWebContents();
 582   // |web_contents| can be NULL since GetCurrentPageIcon() is called by the
 583   // window during the window's creation (before tabs have been added).
 584   FaviconTabHelper* favicon_tab_helper =
 585       web_contents ? FaviconTabHelper::FromWebContents(web_contents) : NULL;
 586   return favicon_tab_helper ? favicon_tab_helper->GetFavicon() : gfx::Image();
 587 }
 588
 589 base::string16 Browser::GetWindowTitleForCurrentTab() const {
 590   WebContents* contents = tab_strip_model_->GetActiveWebContents();
 591   base::string16 title;
 592
 593   // |contents| can be NULL because GetWindowTitleForCurrentTab is called by the
 594   // window during the window's creation (before tabs have been added).
 595   if (contents) {
 596     // The web app frame uses the host instead of the title.
 597     if (ShouldUseWebAppFrame())
 598       return base::UTF8ToUTF16(contents->GetURL().host());
 599
 600     title = contents->GetTitle();
 601     FormatTitleForDisplay(&title);
 602   }
 603   if (title.empty())
 604     title = CoreTabHelper::GetDefaultTitle();
 605
 606 #if defined(OS_MACOSX)
 607   // On Mac, we don't want to suffix the page title with
 608   // the application name.
 609   return title;
 610 #elif defined(USE_ASH)
 611   // On Ash, we don't want to suffix the page title with the application name,
 612   // but on Windows, where USE_ASH can also be true, we still want the prefix
 613   // on desktop.
 614   if (host_desktop_type() == chrome::HOST_DESKTOP_TYPE_ASH)
 615     return title;
 616 #endif
 617   // Don't append the app name to window titles on app frames and app popups
 618   return is_app() ?
 619       title :
 620       l10n_util::GetStringFUTF16(IDS_BROWSER_WINDOW_TITLE_FORMAT, title);
 621 }
 622
 623 // static
 624 void Browser::FormatTitleForDisplay(base::string16* title) {
 625   size_t current_index = 0;
 626   size_t match_index;
 627   while ((match_index = title->find(L'\n', current_index)) !=
 628          base::string16::npos) {
 629     title->replace(match_index, 1, base::string16());
 630     current_index = match_index;
 631   }
 632 }
 633
 634 ///////////////////////////////////////////////////////////////////////////////
 635 // Browser, OnBeforeUnload handling:
 636
 637 bool Browser::ShouldCloseWindow() {
 638   if (!CanCloseWithInProgressDownloads())
 639     return false;
 640
 641   if (IsFastTabUnloadEnabled())
 642     return fast_unload_controller_->ShouldCloseWindow();
 643   return unload_controller_->ShouldCloseWindow();
 644 }
 645
 646 bool Browser::CallBeforeUnloadHandlers(
 647     const base::Callback<void(bool)>& on_close_confirmed) {
 648   cancel_download_confirmation_state_ = RESPONSE_RECEIVED;
 649   if (IsFastTabUnloadEnabled()) {
 650     return fast_unload_controller_->CallBeforeUnloadHandlers(
 651         on_close_confirmed);
 652   }
 653   return unload_controller_->CallBeforeUnloadHandlers(on_close_confirmed);
 654 }
 655
 656 void Browser::ResetBeforeUnloadHandlers() {
 657   cancel_download_confirmation_state_ = NOT_PROMPTED;
 658   if (IsFastTabUnloadEnabled())
 659     fast_unload_controller_->ResetBeforeUnloadHandlers();
 660   else
 661     unload_controller_->ResetBeforeUnloadHandlers();
 662 }
 663
 664 bool Browser::HasCompletedUnloadProcessing() const {
 665   DCHECK(IsFastTabUnloadEnabled());
 666   return fast_unload_controller_->HasCompletedUnloadProcessing();
 667 }
 668
 669 bool Browser::IsAttemptingToCloseBrowser() const {
 670   if (IsFastTabUnloadEnabled())
 671     return fast_unload_controller_->is_attempting_to_close_browser();
 672   return unload_controller_->is_attempting_to_close_browser();
 673 }
 674
 675 void Browser::OnWindowClosing() {
 676   if (!ShouldCloseWindow())
 677     return;
 678
 679   // Application should shutdown on last window close if the user is explicitly
 680   // trying to quit, or if there is nothing keeping the browser alive (such as
 681   // AppController on the Mac, or BackgroundContentsService for background
 682   // pages).
 683   bool should_quit_if_last_browser =
 684       browser_shutdown::IsTryingToQuit() || !chrome::WillKeepAlive();
 685
 686   if (should_quit_if_last_browser && chrome::ShouldStartShutdown(this)) {
 687 #if defined(OS_WIN)
 688     browser_watcher::ExitFunnel::RecordSingleEvent(
 689           chrome::kBrowserExitCodesRegistryPath, L"LastWindowClose");
 690 #endif
 691     browser_shutdown::OnShutdownStarting(browser_shutdown::WINDOW_CLOSE);
 692   }
 693
 694   // Don't use GetForProfileIfExisting here, we want to force creation of the
 695   // session service so that user can restore what was open.
 696   SessionService* session_service =
 697       SessionServiceFactory::GetForProfile(profile());
 698   if (session_service)
 699     session_service->WindowClosing(session_id());
 700
 701   TabRestoreService* tab_restore_service =
 702       TabRestoreServiceFactory::GetForProfile(profile());
 703
 704 #if defined(USE_AURA)
 705   if (tab_restore_service && is_app() && !is_devtools())
 706     tab_restore_service->BrowserClosing(tab_restore_service_delegate());
 707 #endif
 708
 709   if (tab_restore_service && is_type_tabbed() && tab_strip_model_->count())
 710     tab_restore_service->BrowserClosing(tab_restore_service_delegate());
 711
 712   // TODO(sky): convert session/tab restore to use notification.
 713   content::NotificationService::current()->Notify(
 714       chrome::NOTIFICATION_BROWSER_CLOSING,
 715       content::Source<Browser>(this),
 716       content::NotificationService::NoDetails());
 717
 718   if (!IsFastTabUnloadEnabled())
 719     tab_strip_model_->CloseAllTabs();
 720 }
 721
 722 ////////////////////////////////////////////////////////////////////////////////
 723 // In-progress download termination handling:
 724
 725 void Browser::InProgressDownloadResponse(bool cancel_downloads) {
 726   if (cancel_downloads) {
 727     cancel_download_confirmation_state_ = RESPONSE_RECEIVED;
 728     chrome::CloseWindow(this);
 729     return;
 730   }
 731
 732   // Sets the confirmation state to NOT_PROMPTED so that if the user tries to
 733   // close again we'll show the warning again.
 734   cancel_download_confirmation_state_ = NOT_PROMPTED;
 735
 736   // Show the download page so the user can figure-out what downloads are still
 737   // in-progress.
 738   chrome::ShowDownloads(this);
 739
 740   // Reset UnloadController::is_attempting_to_close_browser_ so that we don't
 741   // prompt every time any tab is closed. http://crbug.com/305516
 742   if (IsFastTabUnloadEnabled())
 743     fast_unload_controller_->CancelWindowClose();
 744   else
 745     unload_controller_->CancelWindowClose();
 746 }
 747
 748 Browser::DownloadClosePreventionType Browser::OkToCloseWithInProgressDownloads(
 749     int* num_downloads_blocking) const {
 750   DCHECK(num_downloads_blocking);
 751   *num_downloads_blocking = 0;
 752
 753   // If we're not running a full browser process with a profile manager
 754   // (testing), it's ok to close the browser.
 755   if (!g_browser_process->profile_manager())
 756     return DOWNLOAD_CLOSE_OK;
 757
 758   int total_download_count =
 759       DownloadService::NonMaliciousDownloadCountAllProfiles();
 760   if (total_download_count == 0)
 761     return DOWNLOAD_CLOSE_OK;   // No downloads; can definitely close.
 762
 763   // Figure out how many windows are open total, and associated with this
 764   // profile, that are relevant for the ok-to-close decision.
 765   int profile_window_count = 0;
 766   int total_window_count = 0;
 767   for (chrome::BrowserIterator it; !it.done(); it.Next()) {
 768     // Don't count this browser window or any other in the process of closing.
 769     Browser* const browser = *it;
 770     // Window closing may be delayed, and windows that are in the process of
 771     // closing don't count against our totals.
 772     if (browser == this || browser->IsAttemptingToCloseBrowser())
 773       continue;
 774
 775     if (it->profile() == profile())
 776       profile_window_count++;
 777     total_window_count++;
 778   }
 779
 780   // If there aren't any other windows, we're at browser shutdown,
 781   // which would cancel all current downloads.
 782   if (total_window_count == 0) {
 783     *num_downloads_blocking = total_download_count;
 784     return DOWNLOAD_CLOSE_BROWSER_SHUTDOWN;
 785   }
 786
 787   // If there aren't any other windows on our profile, and we're an incognito
 788   // profile, and there are downloads associated with that profile,
 789   // those downloads would be cancelled by our window (-> profile) close.
 790   DownloadService* download_service =
 791       DownloadServiceFactory::GetForBrowserContext(profile());
 792   if ((profile_window_count == 0) &&
 793       (download_service->NonMaliciousDownloadCount() > 0) &&
 794       profile()->IsOffTheRecord()) {
 795     *num_downloads_blocking = download_service->NonMaliciousDownloadCount();
 796     return DOWNLOAD_CLOSE_LAST_WINDOW_IN_INCOGNITO_PROFILE;
 797   }
 798
 799   // Those are the only conditions under which we will block shutdown.
 800   return DOWNLOAD_CLOSE_OK;
 801 }
 802
 803 ////////////////////////////////////////////////////////////////////////////////
 804 // Browser, Tab adding/showing functions:
 805
 806 void Browser::WindowFullscreenStateChanged() {
 807   exclusive_access_manager_->fullscreen_controller()
 808       ->WindowFullscreenStateChanged();
 809   command_controller_->FullscreenStateChanged();
 810   UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TOGGLE_FULLSCREEN);
 811 }
 812
 813 ///////////////////////////////////////////////////////////////////////////////
 814 // Browser, Assorted browser commands:
 815
 816 void Browser::ToggleFullscreenModeWithExtension(const GURL& extension_url) {
 817   exclusive_access_manager_->fullscreen_controller()
 818       ->ToggleBrowserFullscreenModeWithExtension(extension_url);
 819 }
 820
 821 bool Browser::SupportsWindowFeature(WindowFeature feature) const {
 822   return SupportsWindowFeatureImpl(feature, true);
 823 }
 824
 825 bool Browser::CanSupportWindowFeature(WindowFeature feature) const {
 826   return SupportsWindowFeatureImpl(feature, false);
 827 }
 828
 829 void Browser::ToggleEncodingAutoDetect() {
 830   content::RecordAction(UserMetricsAction("AutoDetectChange"));
 831   encoding_auto_detect_.SetValue(!encoding_auto_detect_.GetValue());
 832   // If "auto detect" is turned on, then any current override encoding
 833   // is cleared. This also implicitly performs a reload.
 834   // OTOH, if "auto detect" is turned off, we don't change the currently
 835   // active encoding.
 836   if (encoding_auto_detect_.GetValue()) {
 837     WebContents* contents = tab_strip_model_->GetActiveWebContents();
 838     if (contents)
 839       contents->ResetOverrideEncoding();
 840   }
 841 }
 842
 843 void Browser::OverrideEncoding(int encoding_id) {
 844   content::RecordAction(UserMetricsAction("OverrideEncoding"));
 845   const std::string selected_encoding =
 846       CharacterEncoding::GetCanonicalEncodingNameByCommandId(encoding_id);
 847   WebContents* contents = tab_strip_model_->GetActiveWebContents();
 848   if (!selected_encoding.empty() && contents)
 849      contents->SetOverrideEncoding(selected_encoding);
 850   // Update the list of recently selected encodings.
 851   std::string new_selected_encoding_list;
 852   if (CharacterEncoding::UpdateRecentlySelectedEncoding(
 853         profile_->GetPrefs()->GetString(prefs::kRecentlySelectedEncoding),
 854         encoding_id,
 855         &new_selected_encoding_list)) {
 856     profile_->GetPrefs()->SetString(prefs::kRecentlySelectedEncoding,
 857                                     new_selected_encoding_list);
 858   }
 859 }
 860
 861 void Browser::OpenFile() {
 862   content::RecordAction(UserMetricsAction("OpenFile"));
 863   select_file_dialog_ = ui::SelectFileDialog::Create(
 864       this, new ChromeSelectFilePolicy(
 865           tab_strip_model_->GetActiveWebContents()));
 866
 867   const base::FilePath directory = profile_->last_selected_directory();
 868
 869   // TODO(beng): figure out how to juggle this.
 870   gfx::NativeWindow parent_window = window_->GetNativeWindow();
 871   ui::SelectFileDialog::FileTypeInfo file_types;
 872   file_types.support_drive = true;
 873   select_file_dialog_->SelectFile(ui::SelectFileDialog::SELECT_OPEN_FILE,
 874                                   base::string16(),
 875                                   directory,
 876                                   &file_types,
 877                                   0,
 878                                   base::FilePath::StringType(),
 879                                   parent_window,
 880                                   NULL);
 881 }
 882
 883 void Browser::UpdateDownloadShelfVisibility(bool visible) {
 884   if (GetStatusBubble())
 885     GetStatusBubble()->UpdateDownloadShelfVisibility(visible);
 886 }
 887
 888 ///////////////////////////////////////////////////////////////////////////////
 889
 890 void Browser::UpdateUIForNavigationInTab(WebContents* contents,
 891                                          ui::PageTransition transition,
 892                                          bool user_initiated) {
 893   tab_strip_model_->TabNavigating(contents, transition);
 894
 895   bool contents_is_selected =
 896       contents == tab_strip_model_->GetActiveWebContents();
 897   if (user_initiated && contents_is_selected && window()->GetLocationBar()) {
 898     // Forcibly reset the location bar if the url is going to change in the
 899     // current tab, since otherwise it won't discard any ongoing user edits,
 900     // since it doesn't realize this is a user-initiated action.
 901     window()->GetLocationBar()->Revert();
 902   }
 903
 904   if (GetStatusBubble())
 905     GetStatusBubble()->Hide();
 906
 907   // Update the location bar. This is synchronous. We specifically don't
 908   // update the load state since the load hasn't started yet and updating it
 909   // will put it out of sync with the actual state like whether we're
 910   // displaying a favicon, which controls the throbber. If we updated it here,
 911   // the throbber will show the default favicon for a split second when
 912   // navigating away from the new tab page.
 913   ScheduleUIUpdate(contents, content::INVALIDATE_TYPE_URL);
 914
 915   if (contents_is_selected)
 916     contents->SetInitialFocus();
 917 }
 918
 919 ///////////////////////////////////////////////////////////////////////////////
 920 // Browser, PageNavigator implementation:
 921
 922 WebContents* Browser::OpenURL(const OpenURLParams& params) {
 923   return OpenURLFromTab(NULL, params);
 924 }
 925
 926 ///////////////////////////////////////////////////////////////////////////////
 927 // Browser, TabStripModelObserver implementation:
 928
 929 void Browser::TabInsertedAt(WebContents* contents,
 930                             int index,
 931                             bool foreground) {
 932   SetAsDelegate(contents, true);
 933
 934   if (popup_manager_)
 935     popup_manager_->RegisterWith(contents);
 936
 937   SessionTabHelper* session_tab_helper =
 938       SessionTabHelper::FromWebContents(contents);
 939   session_tab_helper->SetWindowID(session_id());
 940
 941   content::NotificationService::current()->Notify(
 942       chrome::NOTIFICATION_TAB_PARENTED,
 943       content::Source<content::WebContents>(contents),
 944       content::NotificationService::NoDetails());
 945
 946   SyncHistoryWithTabs(index);
 947
 948   // Make sure the loading state is updated correctly, otherwise the throbber
 949   // won't start if the page is loading.
 950   LoadingStateChanged(contents, true);
 951
 952   interstitial_observers_.push_back(new InterstitialObserver(this, contents));
 953
 954   SessionService* session_service =
 955       SessionServiceFactory::GetForProfile(profile_);
 956   if (session_service) {
 957     session_service->TabInserted(contents);
 958     int new_active_index = tab_strip_model_->active_index();
 959     if (index < new_active_index)
 960       session_service->SetSelectedTabInWindow(session_id(),
 961                                               new_active_index);
 962   }
 963 }
 964
 965 void Browser::TabClosingAt(TabStripModel* tab_strip_model,
 966                            WebContents* contents,
 967                            int index) {
 968   exclusive_access_manager_->OnTabClosing(contents);
 969   SessionService* session_service =
 970       SessionServiceFactory::GetForProfile(profile_);
 971   if (session_service)
 972     session_service->TabClosing(contents);
 973   content::NotificationService::current()->Notify(
 974       chrome::NOTIFICATION_TAB_CLOSING,
 975       content::Source<NavigationController>(&contents->GetController()),
 976       content::NotificationService::NoDetails());
 977
 978   if (popup_manager_)
 979     popup_manager_->UnregisterWith(contents);
 980
 981   // Sever the WebContents' connection back to us.
 982   SetAsDelegate(contents, false);
 983 }
 984
 985 void Browser::TabDetachedAt(WebContents* contents, int index) {
 986   // TabDetachedAt is called before TabStripModel has updated the
 987   // active index.
 988   int old_active_index = tab_strip_model_->active_index();
 989   if (index < old_active_index && !tab_strip_model_->closing_all()) {
 990     SessionService* session_service =
 991         SessionServiceFactory::GetForProfileIfExisting(profile_);
 992     if (session_service)
 993       session_service->SetSelectedTabInWindow(session_id(),
 994                                               old_active_index - 1);
 995   }
 996
 997   if (popup_manager_)
 998     popup_manager_->UnregisterWith(contents);
 999
1000   TabDetachedAtImpl(contents, index, DETACH_TYPE_DETACH);
1001 }
1002
1003 void Browser::TabDeactivated(WebContents* contents) {
1004   exclusive_access_manager_->OnTabDeactivated(contents);
1005   search_delegate_->OnTabDeactivated(contents);
1006   SearchTabHelper::FromWebContents(contents)->OnTabDeactivated();
1007
1008   // Save what the user's currently typing, so it can be restored when we
1009   // switch back to this tab.
1010   window_->GetLocationBar()->SaveStateToContents(contents);
1011
1012   if (instant_controller_)
1013     instant_controller_->TabDeactivated(contents);
1014 }
1015
1016 void Browser::ActiveTabChanged(WebContents* old_contents,
1017                                WebContents* new_contents,
1018                                int index,
1019                                int reason) {
1020   content::RecordAction(UserMetricsAction("ActiveTabChanged"));
1021
1022   // Update the bookmark state, since the BrowserWindow may query it during
1023   // OnActiveTabChanged() below.
1024   UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_SWITCH);
1025
1026   // Let the BrowserWindow do its handling.  On e.g. views this changes the
1027   // focused object, which should happen before we update the toolbar below,
1028   // since the omnibox expects the correct element to already be focused when it
1029   // is updated.
1030   window_->OnActiveTabChanged(old_contents, new_contents, index, reason);
1031
1032   exclusive_access_manager_->OnTabDetachedFromView(old_contents);
1033
1034   // Discarded tabs always get reloaded.
1035   if (tab_strip_model_->IsTabDiscarded(index)) {
1036     LOG(WARNING) << "Reloading discarded tab at " << index;
1037     static int reload_count = 0;
1038     UMA_HISTOGRAM_CUSTOM_COUNTS(
1039         "Tabs.Discard.ReloadCount", ++reload_count, 1, 1000, 50);
1040     chrome::Reload(this, CURRENT_TAB);
1041   }
1042
1043   // If we have any update pending, do it now.
1044   if (chrome_updater_factory_.HasWeakPtrs() && old_contents)
1045     ProcessPendingUIUpdates();
1046
1047   // Propagate the profile to the location bar.
1048   UpdateToolbar((reason & CHANGE_REASON_REPLACED) == 0);
1049
1050   if (chrome::IsInstantExtendedAPIEnabled())
1051     search_delegate_->OnTabActivated(new_contents);
1052
1053   // Update reload/stop state.
1054   command_controller_->LoadingStateChanged(new_contents->IsLoading(), true);
1055
1056   // Update commands to reflect current state.
1057   command_controller_->TabStateChanged();
1058
1059   // Reset the status bubble.
1060   StatusBubble* status_bubble = GetStatusBubble();
1061   if (status_bubble) {
1062     status_bubble->Hide();
1063
1064     // Show the loading state (if any).
1065     status_bubble->SetStatus(CoreTabHelper::FromWebContents(
1066         tab_strip_model_->GetActiveWebContents())->GetStatusText());
1067   }
1068
1069   if (HasFindBarController()) {
1070     find_bar_controller_->ChangeWebContents(new_contents);
1071     find_bar_controller_->find_bar()->MoveWindowIfNecessary(gfx::Rect());
1072   }
1073
1074   // Update sessions. Don't force creation of sessions. If sessions doesn't
1075   // exist, the change will be picked up by sessions when created.
1076   SessionService* session_service =
1077       SessionServiceFactory::GetForProfileIfExisting(profile_);
1078   if (session_service && !tab_strip_model_->closing_all()) {
1079     session_service->SetSelectedTabInWindow(session_id(),
1080                                             tab_strip_model_->active_index());
1081   }
1082
1083   // This needs to be called after notifying SearchDelegate.
1084   if (instant_controller_)
1085     instant_controller_->ActiveTabChanged();
1086
1087   autofill::ChromeAutofillClient::FromWebContents(new_contents)->TabActivated();
1088   SearchTabHelper::FromWebContents(new_contents)->OnTabActivated();
1089 }
1090
1091 void Browser::TabMoved(WebContents* contents,
1092                        int from_index,
1093                        int to_index) {
1094   DCHECK(from_index >= 0 && to_index >= 0);
1095   // Notify the history service.
1096   SyncHistoryWithTabs(std::min(from_index, to_index));
1097 }
1098
1099 void Browser::TabReplacedAt(TabStripModel* tab_strip_model,
1100                             WebContents* old_contents,
1101                             WebContents* new_contents,
1102                             int index) {
1103   TabDetachedAtImpl(old_contents, index, DETACH_TYPE_REPLACE);
1104   exclusive_access_manager_->OnTabClosing(old_contents);
1105   SessionService* session_service =
1106       SessionServiceFactory::GetForProfile(profile_);
1107   if (session_service)
1108     session_service->TabClosing(old_contents);
1109   TabInsertedAt(new_contents,
1110                 index,
1111                 (index == tab_strip_model_->active_index()));
1112
1113   int entry_count = new_contents->GetController().GetEntryCount();
1114   if (entry_count > 0) {
1115     // Send out notification so that observers are updated appropriately.
1116     new_contents->GetController().NotifyEntryChanged(
1117         new_contents->GetController().GetEntryAtIndex(entry_count - 1),
1118         entry_count - 1);
1119   }
1120
1121   if (session_service) {
1122     // The new_contents may end up with a different navigation stack. Force
1123     // the session service to update itself.
1124     session_service->TabRestored(new_contents,
1125                                  tab_strip_model_->IsTabPinned(index));
1126   }
1127 }
1128
1129 void Browser::TabPinnedStateChanged(WebContents* contents, int index) {
1130   SessionService* session_service =
1131       SessionServiceFactory::GetForProfileIfExisting(profile());
1132   if (session_service) {
1133     SessionTabHelper* session_tab_helper =
1134         SessionTabHelper::FromWebContents(contents);
1135     session_service->SetPinnedState(session_id(),
1136                                     session_tab_helper->session_id(),
1137                                     tab_strip_model_->IsTabPinned(index));
1138   }
1139 }
1140
1141 void Browser::TabStripEmpty() {
1142   // Close the frame after we return to the message loop (not immediately,
1143   // otherwise it will destroy this object before the stack has a chance to
1144   // cleanly unwind.)
1145   // Note: This will be called several times if TabStripEmpty is called several
1146   //       times. This is because it does not close the window if tabs are
1147   //       still present.
1148   base::MessageLoop::current()->PostTask(
1149       FROM_HERE, base::Bind(&Browser::CloseFrame, weak_factory_.GetWeakPtr()));
1150
1151   // Instant may have visible WebContents that need to be detached before the
1152   // window system closes.
1153   instant_controller_.reset();
1154 }
1155
1156 bool Browser::CanOverscrollContent() const {
1157 #if defined(OS_WIN)
1158   // Don't enable overscroll on Windows machines unless they have a touch
1159   // screen as these machines typically don't have a touchpad capable of
1160   // horizontal scrolling. We are purposefully biased towards "no" here,
1161   // so that we don't waste resources capturing screenshots for horizontal
1162   // overscroll navigation unnecessarily.
1163   bool allow_overscroll = ui::IsTouchDevicePresent();
1164 #elif defined(USE_AURA)
1165   bool allow_overscroll = true;
1166 #else
1167   bool allow_overscroll = false;
1168 #endif
1169
1170   if (!allow_overscroll)
1171     return false;
1172
1173   const std::string value =
1174       base::CommandLine::ForCurrentProcess()->GetSwitchValueASCII(
1175           switches::kOverscrollHistoryNavigation);
1176   bool overscroll_enabled = value != "0";
1177   if (!overscroll_enabled)
1178     return false;
1179   if (is_app() || is_devtools() || !is_type_tabbed())
1180     return false;
1181
1182   // The detached bookmark bar has appearance of floating above the
1183   // web-contents. This does not play nicely with overscroll navigation
1184   // gestures. So disable overscroll navigation when the bookmark bar is in the
1185   // detached state and the overscroll effect moves the layers.
1186   if (value == "1" && bookmark_bar_state_ == BookmarkBar::DETACHED)
1187     return false;
1188   return true;
1189 }
1190
1191 bool Browser::ShouldPreserveAbortedURLs(WebContents* source) {
1192   // Allow failed URLs to stick around in the omnibox on the NTP, but not when
1193   // other pages have committed.
1194   Profile* profile = Profile::FromBrowserContext(source->GetBrowserContext());
1195   if (!profile || !source->GetController().GetLastCommittedEntry())
1196     return false;
1197   GURL committed_url(source->GetController().GetLastCommittedEntry()->GetURL());
1198   return chrome::IsNTPURL(committed_url, profile);
1199 }
1200
1201 bool Browser::PreHandleKeyboardEvent(content::WebContents* source,
1202                                      const NativeWebKeyboardEvent& event,
1203                                      bool* is_keyboard_shortcut) {
1204   // Escape exits tabbed fullscreen mode and mouse lock, and possibly others.
1205   // TODO(koz): Write a test for this http://crbug.com/100441.
1206   if (event.windowsKeyCode == 27 &&
1207       exclusive_access_manager_->HandleUserPressedEscape()) {
1208     return true;
1209   }
1210   return window()->PreHandleKeyboardEvent(event, is_keyboard_shortcut);
1211 }
1212
1213 void Browser::HandleKeyboardEvent(content::WebContents* source,
1214                                   const NativeWebKeyboardEvent& event) {
1215   DevToolsWindow* devtools_window =
1216       DevToolsWindow::GetInstanceForInspectedWebContents(source);
1217   bool handled = false;
1218   if (devtools_window)
1219     handled = devtools_window->ForwardKeyboardEvent(event);
1220
1221   if (!handled)
1222     window()->HandleKeyboardEvent(event);
1223 }
1224
1225 bool Browser::TabsNeedBeforeUnloadFired() {
1226   if (IsFastTabUnloadEnabled())
1227     return fast_unload_controller_->TabsNeedBeforeUnloadFired();
1228   return unload_controller_->TabsNeedBeforeUnloadFired();
1229 }
1230
1231 void Browser::ShowValidationMessage(content::WebContents* web_contents,
1232                                     const gfx::Rect& anchor_in_root_view,
1233                                     const base::string16& main_text,
1234                                     const base::string16& sub_text) {
1235   validation_message_bubble_ =
1236       TabDialogs::FromWebContents(web_contents)
1237           ->ShowValidationMessage(anchor_in_root_view, main_text, sub_text);
1238 }
1239
1240 void Browser::HideValidationMessage(content::WebContents* web_contents) {
1241   validation_message_bubble_.reset();
1242 }
1243
1244 void Browser::MoveValidationMessage(content::WebContents* web_contents,
1245                                     const gfx::Rect& anchor_in_root_view) {
1246   if (!validation_message_bubble_)
1247     return;
1248   RenderWidgetHostView* rwhv = web_contents->GetRenderWidgetHostView();
1249   if (rwhv) {
1250     validation_message_bubble_->SetPositionRelativeToAnchor(
1251         rwhv->GetRenderWidgetHost(), anchor_in_root_view);
1252   }
1253 }
1254
1255 bool Browser::PreHandleGestureEvent(content::WebContents* source,
1256                                     const blink::WebGestureEvent& event) {
1257   // Disable pinch zooming in undocked dev tools window due to poor UX.
1258   if (app_name() == DevToolsWindow::kDevToolsApp)
1259     return event.type == blink::WebGestureEvent::GesturePinchBegin ||
1260            event.type == blink::WebGestureEvent::GesturePinchUpdate ||
1261            event.type == blink::WebGestureEvent::GesturePinchEnd;
1262
1263   return false;
1264 }
1265
1266 bool Browser::CanDragEnter(content::WebContents* source,
1267                            const content::DropData& data,
1268                            blink::WebDragOperationsMask operations_allowed) {
1269   // Disallow drag-and-drop navigation for Settings windows which do not support
1270   // external navigation.
1271   if ((operations_allowed & blink::WebDragOperationLink) &&
1272       chrome::SettingsWindowManager::GetInstance()->IsSettingsBrowser(this)) {
1273     return false;
1274   }
1275   return true;
1276 }
1277
1278 bool Browser::IsMouseLocked() const {
1279   return exclusive_access_manager_->mouse_lock_controller()->IsMouseLocked();
1280 }
1281
1282 void Browser::OnWindowDidShow() {
1283   if (window_has_shown_)
1284     return;
1285   window_has_shown_ = true;
1286
1287 // CurrentProcessInfo::CreationTime() is missing on some platforms.
1288 #if defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
1289   // Measure the latency from startup till the first browser window becomes
1290   // visible.
1291   static bool is_first_browser_window = true;
1292   if (is_first_browser_window &&
1293       !startup_metric_utils::WasNonBrowserUIDisplayed()) {
1294     is_first_browser_window = false;
1295     const base::Time process_creation_time =
1296         base::CurrentProcessInfo::CreationTime();
1297
1298     if (!process_creation_time.is_null()) {
1299       UMA_HISTOGRAM_LONG_TIMES(
1300           "Startup.BrowserWindowDisplay",
1301           base::Time::Now() - process_creation_time);
1302     }
1303   }
1304 #endif  // defined(OS_MACOSX) || defined(OS_WIN) || defined(OS_LINUX)
1305
1306   // Nothing to do for non-tabbed windows.
1307   if (!is_type_tabbed())
1308     return;
1309
1310   // Show any pending global error bubble.
1311   GlobalErrorService* service =
1312       GlobalErrorServiceFactory::GetForProfile(profile());
1313   GlobalError* error = service->GetFirstGlobalErrorWithBubbleView();
1314   if (error)
1315     error->ShowBubbleView(this);
1316 }
1317
1318 void Browser::ShowFirstRunBubble() {
1319   window()->GetLocationBar()->ShowFirstRunBubble();
1320 }
1321
1322 void Browser::ShowDownload(content::DownloadItem* download) {
1323   if (!window())
1324     return;
1325
1326   // If the download occurs in a new tab, and it's not a save page
1327   // download (started before initial navigation completed) close it.
1328   // Avoid calling CloseContents if the tab is not in this browser's tab strip
1329   // model; this can happen if the download was initiated by something internal
1330   // to Chrome, such as by the app list.
1331   WebContents* source = download->GetWebContents();
1332   if (source && source->GetController().IsInitialNavigation() &&
1333       tab_strip_model_->count() > 1 &&
1334       tab_strip_model_->GetIndexOfWebContents(source) !=
1335           TabStripModel::kNoTab &&
1336       !download->IsSavePackageDownload()) {
1337     CloseContents(source);
1338   }
1339
1340   // Some (app downloads) are not supposed to appear on the shelf.
1341   if (!DownloadItemModel(download).ShouldShowInShelf())
1342     return;
1343
1344   // GetDownloadShelf creates the download shelf if it was not yet created.
1345   window()->GetDownloadShelf()->AddDownload(download);
1346 }
1347
1348 ///////////////////////////////////////////////////////////////////////////////
1349 // Browser, content::WebContentsDelegate implementation:
1350
1351 WebContents* Browser::OpenURLFromTab(WebContents* source,
1352                                      const OpenURLParams& params) {
1353   if (is_devtools()) {
1354     DevToolsWindow* window = DevToolsWindow::AsDevToolsWindow(source);
1355     DCHECK(window);
1356     return window->OpenURLFromTab(source, params);
1357   }
1358
1359   chrome::NavigateParams nav_params(this, params.url, params.transition);
1360   FillNavigateParamsFromOpenURLParams(&nav_params, params);
1361   nav_params.source_contents = source;
1362   nav_params.tabstrip_add_types = TabStripModel::ADD_NONE;
1363   if (params.user_gesture)
1364     nav_params.window_action = chrome::NavigateParams::SHOW_WINDOW;
1365   nav_params.user_gesture = params.user_gesture;
1366
1367   PopupBlockerTabHelper* popup_blocker_helper = NULL;
1368   if (source)
1369     popup_blocker_helper = PopupBlockerTabHelper::FromWebContents(source);
1370
1371   if (popup_blocker_helper) {
1372     if ((params.disposition == NEW_POPUP ||
1373          params.disposition == NEW_FOREGROUND_TAB ||
1374          params.disposition == NEW_BACKGROUND_TAB ||
1375          params.disposition == NEW_WINDOW) &&
1376         !params.user_gesture &&
1377         !base::CommandLine::ForCurrentProcess()->HasSwitch(
1378             switches::kDisablePopupBlocking)) {
1379       if (popup_blocker_helper->MaybeBlockPopup(nav_params,
1380                                                 WebWindowFeatures())) {
1381         return NULL;
1382       }
1383     }
1384   }
1385
1386   chrome::Navigate(&nav_params);
1387
1388   return nav_params.target_contents;
1389 }
1390
1391 void Browser::NavigationStateChanged(WebContents* source,
1392                                      content::InvalidateTypes changed_flags) {
1393   // TODO(erikchen): Remove ScopedTracker below once http://crbug.com/466285
1394   // is fixed.
1395   tracked_objects::ScopedTracker tracking_profile1(
1396       FROM_HERE_WITH_EXPLICIT_FUNCTION(
1397           "466285 Browser::NavigationStateChanged::ScheduleUIUpdate"));
1398   // Only update the UI when something visible has changed.
1399   if (changed_flags)
1400     ScheduleUIUpdate(source, changed_flags);
1401
1402   // TODO(erikchen): Remove ScopedTracker below once http://crbug.com/466285
1403   // is fixed.
1404   tracked_objects::ScopedTracker tracking_profile2(
1405       FROM_HERE_WITH_EXPLICIT_FUNCTION(
1406           "466285 Browser::NavigationStateChanged::TabStateChanged"));
1407   // We can synchronously update commands since they will only change once per
1408   // navigation, so we don't have to worry about flickering. We do, however,
1409   // need to update the command state early on load to always present usable
1410   // actions in the face of slow-to-commit pages.
1411   if (changed_flags & (content::INVALIDATE_TYPE_URL |
1412                        content::INVALIDATE_TYPE_LOAD))
1413     command_controller_->TabStateChanged();
1414 }
1415
1416 void Browser::VisibleSSLStateChanged(const WebContents* source) {
1417   // When the current tab's SSL state changes, we need to update the URL
1418   // bar to reflect the new state.
1419   DCHECK(source);
1420   if (tab_strip_model_->GetActiveWebContents() == source)
1421     UpdateToolbar(false);
1422 }
1423
1424 void Browser::AddNewContents(WebContents* source,
1425                              WebContents* new_contents,
1426                              WindowOpenDisposition disposition,
1427                              const gfx::Rect& initial_rect,
1428                              bool user_gesture,
1429                              bool* was_blocked) {
1430   chrome::AddWebContents(this, source, new_contents, disposition, initial_rect,
1431                          user_gesture, was_blocked);
1432 }
1433
1434 void Browser::ActivateContents(WebContents* contents) {
1435   tab_strip_model_->ActivateTabAt(
1436       tab_strip_model_->GetIndexOfWebContents(contents), false);
1437   window_->Activate();
1438 }
1439
1440 void Browser::DeactivateContents(WebContents* contents) {
1441   window_->Deactivate();
1442 }
1443
1444 void Browser::LoadingStateChanged(WebContents* source,
1445     bool to_different_document) {
1446   window_->UpdateLoadingAnimations(tab_strip_model_->TabsAreLoading());
1447   window_->UpdateTitleBar();
1448
1449   WebContents* selected_contents = tab_strip_model_->GetActiveWebContents();
1450   if (source == selected_contents) {
1451     bool is_loading = source->IsLoading() && to_different_document;
1452     command_controller_->LoadingStateChanged(is_loading, false);
1453     if (GetStatusBubble()) {
1454       GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
1455           tab_strip_model_->GetActiveWebContents())->GetStatusText());
1456     }
1457   }
1458 }
1459
1460 void Browser::CloseContents(WebContents* source) {
1461   bool can_close_contents;
1462   if (IsFastTabUnloadEnabled())
1463     can_close_contents = fast_unload_controller_->CanCloseContents(source);
1464   else
1465     can_close_contents = unload_controller_->CanCloseContents(source);
1466
1467   if (can_close_contents)
1468     chrome::CloseWebContents(this, source, true);
1469 }
1470
1471 void Browser::MoveContents(WebContents* source, const gfx::Rect& pos) {
1472   if (!IsPopupOrPanel(source)) {
1473     NOTREACHED() << "moving invalid browser type";
1474     return;
1475   }
1476   window_->SetBounds(pos);
1477 }
1478
1479 bool Browser::IsPopupOrPanel(const WebContents* source) const {
1480   return is_type_popup();
1481 }
1482
1483 void Browser::UpdateTargetURL(WebContents* source, const GURL& url) {
1484   if (!GetStatusBubble())
1485     return;
1486
1487   if (source == tab_strip_model_->GetActiveWebContents()) {
1488     PrefService* prefs = profile_->GetPrefs();
1489     GetStatusBubble()->SetURL(url, prefs->GetString(prefs::kAcceptLanguages));
1490   }
1491 }
1492
1493 void Browser::ContentsMouseEvent(
1494     WebContents* source, const gfx::Point& location, bool motion) {
1495   if (!GetStatusBubble())
1496     return;
1497
1498   if (source == tab_strip_model_->GetActiveWebContents()) {
1499     GetStatusBubble()->MouseMoved(location, !motion);
1500     if (!motion)
1501       GetStatusBubble()->SetURL(GURL(), std::string());
1502   }
1503 }
1504
1505 void Browser::ContentsZoomChange(bool zoom_in) {
1506   chrome::ExecuteCommand(this, zoom_in ? IDC_ZOOM_PLUS : IDC_ZOOM_MINUS);
1507 }
1508
1509 void Browser::WebContentsFocused(WebContents* contents) {
1510   window_->WebContentsFocused(contents);
1511 }
1512
1513 bool Browser::TakeFocus(content::WebContents* source,
1514                         bool reverse) {
1515   content::NotificationService::current()->Notify(
1516       chrome::NOTIFICATION_FOCUS_RETURNED_TO_BROWSER,
1517       content::Source<Browser>(this),
1518       content::NotificationService::NoDetails());
1519   return false;
1520 }
1521
1522 gfx::Rect Browser::GetRootWindowResizerRect() const {
1523   return window_->GetRootWindowResizerRect();
1524 }
1525
1526 void Browser::BeforeUnloadFired(WebContents* web_contents,
1527                                 bool proceed,
1528                                 bool* proceed_to_fire_unload) {
1529   if (is_devtools() && DevToolsWindow::HandleBeforeUnload(web_contents,
1530         proceed, proceed_to_fire_unload))
1531     return;
1532
1533   if (IsFastTabUnloadEnabled()) {
1534     *proceed_to_fire_unload =
1535         fast_unload_controller_->BeforeUnloadFired(web_contents, proceed);
1536   } else {
1537     *proceed_to_fire_unload =
1538         unload_controller_->BeforeUnloadFired(web_contents, proceed);
1539   }
1540 }
1541
1542 bool Browser::ShouldFocusLocationBarByDefault(WebContents* source) {
1543   const content::NavigationEntry* entry =
1544       source->GetController().GetActiveEntry();
1545   if (entry) {
1546     GURL url = entry->GetURL();
1547     GURL virtual_url = entry->GetVirtualURL();
1548     if ((url.SchemeIs(content::kChromeUIScheme) &&
1549         url.host() == chrome::kChromeUINewTabHost) ||
1550         (virtual_url.SchemeIs(content::kChromeUIScheme) &&
1551         virtual_url.host() == chrome::kChromeUINewTabHost)) {
1552       return true;
1553     }
1554   }
1555
1556   return chrome::NavEntryIsInstantNTP(source, entry);
1557 }
1558
1559 void Browser::SetFocusToLocationBar(bool select_all) {
1560   // Two differences between this and FocusLocationBar():
1561   // (1) This doesn't get recorded in user metrics, since it's called
1562   //     internally.
1563   // (2) This checks whether the location bar can be focused, and if not, clears
1564   //     the focus.  FocusLocationBar() is only reached when the location bar is
1565   //     focusable, but this may be reached at other times, e.g. while in
1566   //     fullscreen mode, where we need to leave focus in a consistent state.
1567   window_->SetFocusToLocationBar(select_all);
1568 }
1569
1570 int Browser::GetExtraRenderViewHeight() const {
1571   return window_->GetExtraRenderViewHeight();
1572 }
1573
1574 void Browser::ViewSourceForTab(WebContents* source, const GURL& page_url) {
1575   DCHECK(source);
1576   chrome::ViewSource(this, source);
1577 }
1578
1579 void Browser::ViewSourceForFrame(WebContents* source,
1580                                  const GURL& frame_url,
1581                                  const content::PageState& frame_page_state) {
1582   DCHECK(source);
1583   chrome::ViewSource(this, source, frame_url, frame_page_state);
1584 }
1585
1586 void Browser::ShowRepostFormWarningDialog(WebContents* source) {
1587   TabModalConfirmDialog::Create(new RepostFormWarningController(source),
1588                                 source);
1589 }
1590
1591 bool Browser::ShouldCreateWebContents(
1592     WebContents* web_contents,
1593     int route_id,
1594     int main_frame_route_id,
1595     WindowContainerType window_container_type,
1596     const base::string16& frame_name,
1597     const GURL& target_url,
1598     const std::string& partition_id,
1599     content::SessionStorageNamespace* session_storage_namespace) {
1600   if (window_container_type == WINDOW_CONTAINER_TYPE_BACKGROUND) {
1601     // If a BackgroundContents is created, suppress the normal WebContents.
1602     return !MaybeCreateBackgroundContents(route_id,
1603                                           main_frame_route_id,
1604                                           web_contents,
1605                                           frame_name,
1606                                           target_url,
1607                                           partition_id,
1608                                           session_storage_namespace);
1609   }
1610
1611   return true;
1612 }
1613
1614 void Browser::WebContentsCreated(WebContents* source_contents,
1615                                  int opener_render_frame_id,
1616                                  const base::string16& frame_name,
1617                                  const GURL& target_url,
1618                                  WebContents* new_contents) {
1619   // Adopt the WebContents now, so all observers are in place, as the network
1620   // requests for its initial navigation will start immediately. The WebContents
1621   // will later be inserted into this browser using Browser::Navigate via
1622   // AddNewContents.
1623   TabHelpers::AttachTabHelpers(new_contents);
1624
1625   // Notify.
1626   RetargetingDetails details;
1627   details.source_web_contents = source_contents;
1628   details.source_render_frame_id = opener_render_frame_id;
1629   details.target_url = target_url;
1630   details.target_web_contents = new_contents;
1631   details.not_yet_in_tabstrip = true;
1632   content::NotificationService::current()->Notify(
1633       chrome::NOTIFICATION_RETARGETING,
1634       content::Source<Profile>(profile_),
1635       content::Details<RetargetingDetails>(&details));
1636 }
1637
1638 void Browser::RendererUnresponsive(WebContents* source) {
1639   // Ignore hangs if a tab is blocked.
1640   int index = tab_strip_model_->GetIndexOfWebContents(source);
1641   DCHECK_NE(TabStripModel::kNoTab, index);
1642   if (tab_strip_model_->IsTabBlocked(index))
1643     return;
1644
1645   TabDialogs::FromWebContents(source)->ShowHungRendererDialog();
1646 }
1647
1648 void Browser::RendererResponsive(WebContents* source) {
1649   TabDialogs::FromWebContents(source)->HideHungRendererDialog();
1650 }
1651
1652 void Browser::WorkerCrashed(WebContents* source) {
1653   SimpleAlertInfoBarDelegate::Create(
1654       InfoBarService::FromWebContents(source),
1655       infobars::InfoBarDelegate::kNoIconID,
1656       l10n_util::GetStringUTF16(IDS_WEBWORKER_CRASHED_PROMPT), true);
1657 }
1658
1659 void Browser::DidNavigateMainFramePostCommit(WebContents* web_contents) {
1660   if (web_contents == tab_strip_model_->GetActiveWebContents())
1661     UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
1662 }
1663
1664 content::JavaScriptDialogManager* Browser::GetJavaScriptDialogManager(
1665     WebContents* source) {
1666   return app_modal::JavaScriptDialogManager::GetInstance();
1667 }
1668
1669 content::ColorChooser* Browser::OpenColorChooser(
1670       WebContents* web_contents,
1671       SkColor initial_color,
1672       const std::vector<content::ColorSuggestion>& suggestions) {
1673   return chrome::ShowColorChooser(web_contents, initial_color);
1674 }
1675
1676 void Browser::RunFileChooser(WebContents* web_contents,
1677                              const content::FileChooserParams& params) {
1678   FileSelectHelper::RunFileChooser(web_contents, params);
1679 }
1680
1681 void Browser::EnumerateDirectory(WebContents* web_contents,
1682                                  int request_id,
1683                                  const base::FilePath& path) {
1684   FileSelectHelper::EnumerateDirectory(web_contents, request_id, path);
1685 }
1686
1687 bool Browser::EmbedsFullscreenWidget() const {
1688   return true;
1689 }
1690
1691 void Browser::EnterFullscreenModeForTab(WebContents* web_contents,
1692                                         const GURL& origin) {
1693   exclusive_access_manager_->fullscreen_controller()->EnterFullscreenModeForTab(
1694       web_contents, origin);
1695 }
1696
1697 void Browser::ExitFullscreenModeForTab(WebContents* web_contents) {
1698   exclusive_access_manager_->fullscreen_controller()->ExitFullscreenModeForTab(
1699       web_contents);
1700 }
1701
1702 bool Browser::IsFullscreenForTabOrPending(
1703     const WebContents* web_contents) const {
1704   return exclusive_access_manager_->fullscreen_controller()
1705       ->IsFullscreenForTabOrPending(web_contents);
1706 }
1707
1708 void Browser::RegisterProtocolHandler(WebContents* web_contents,
1709                                       const std::string& protocol,
1710                                       const GURL& url,
1711                                       bool user_gesture) {
1712   content::BrowserContext* context = web_contents->GetBrowserContext();
1713   if (context->IsOffTheRecord())
1714     return;
1715
1716   ProtocolHandler handler =
1717       ProtocolHandler::CreateProtocolHandler(protocol, url);
1718
1719   ProtocolHandlerRegistry* registry =
1720       ProtocolHandlerRegistryFactory::GetForBrowserContext(context);
1721   if (registry->SilentlyHandleRegisterHandlerRequest(handler))
1722     return;
1723
1724   TabSpecificContentSettings* tab_content_settings =
1725       TabSpecificContentSettings::FromWebContents(web_contents);
1726   if (!user_gesture && window_) {
1727     tab_content_settings->set_pending_protocol_handler(handler);
1728     tab_content_settings->set_previous_protocol_handler(
1729         registry->GetHandlerFor(handler.protocol()));
1730     window_->GetLocationBar()->UpdateContentSettingsIcons();
1731     return;
1732   }
1733
1734   // Make sure content-setting icon is turned off in case the page does
1735   // ungestured and gestured RPH calls.
1736   if (window_) {
1737     tab_content_settings->ClearPendingProtocolHandler();
1738     window_->GetLocationBar()->UpdateContentSettingsIcons();
1739   }
1740
1741   PermissionBubbleManager* bubble_manager =
1742       PermissionBubbleManager::FromWebContents(web_contents);
1743   if (PermissionBubbleManager::Enabled() && bubble_manager) {
1744     bubble_manager->AddRequest(
1745         new RegisterProtocolHandlerPermissionRequest(registry, handler,
1746                                                      url, user_gesture));
1747   } else {
1748     RegisterProtocolHandlerInfoBarDelegate::Create(
1749         InfoBarService::FromWebContents(web_contents), registry, handler);
1750   }
1751 }
1752
1753 void Browser::UnregisterProtocolHandler(WebContents* web_contents,
1754                                         const std::string& protocol,
1755                                         const GURL& url,
1756                                         bool user_gesture) {
1757   // user_gesture will be used in case we decide to have confirmation bubble
1758   // for user while un-registering the handler.
1759   content::BrowserContext* context = web_contents->GetBrowserContext();
1760   if (context->IsOffTheRecord())
1761     return;
1762
1763   ProtocolHandler handler =
1764       ProtocolHandler::CreateProtocolHandler(protocol, url);
1765
1766   ProtocolHandlerRegistry* registry =
1767       ProtocolHandlerRegistryFactory::GetForBrowserContext(context);
1768   registry->RemoveHandler(handler);
1769 }
1770
1771 void Browser::UpdatePreferredSize(WebContents* source,
1772                                   const gfx::Size& pref_size) {
1773   window_->UpdatePreferredSize(source, pref_size);
1774 }
1775
1776 void Browser::ResizeDueToAutoResize(WebContents* source,
1777                                     const gfx::Size& new_size) {
1778   window_->ResizeDueToAutoResize(source, new_size);
1779 }
1780
1781 void Browser::FindReply(WebContents* web_contents,
1782                         int request_id,
1783                         int number_of_matches,
1784                         const gfx::Rect& selection_rect,
1785                         int active_match_ordinal,
1786                         bool final_update) {
1787   FindTabHelper* find_tab_helper = FindTabHelper::FromWebContents(web_contents);
1788   if (!find_tab_helper)
1789     return;
1790
1791   find_tab_helper->HandleFindReply(request_id,
1792                                    number_of_matches,
1793                                    selection_rect,
1794                                    active_match_ordinal,
1795                                    final_update);
1796 }
1797
1798 void Browser::RequestToLockMouse(WebContents* web_contents,
1799                                  bool user_gesture,
1800                                  bool last_unlocked_by_target) {
1801   exclusive_access_manager_->mouse_lock_controller()->RequestToLockMouse(
1802       web_contents, user_gesture, last_unlocked_by_target);
1803 }
1804
1805 void Browser::LostMouseLock() {
1806   exclusive_access_manager_->mouse_lock_controller()->LostMouseLock();
1807 }
1808
1809 void Browser::RequestMediaAccessPermission(
1810     content::WebContents* web_contents,
1811     const content::MediaStreamRequest& request,
1812     const content::MediaResponseCallback& callback) {
1813   ::RequestMediaAccessPermission(web_contents, profile_, request, callback);
1814 }
1815
1816 bool Browser::CheckMediaAccessPermission(content::WebContents* web_contents,
1817                                          const GURL& security_origin,
1818                                          content::MediaStreamType type) {
1819   return ::CheckMediaAccessPermission(web_contents, security_origin, type);
1820 }
1821
1822 bool Browser::RequestPpapiBrokerPermission(
1823     WebContents* web_contents,
1824     const GURL& url,
1825     const base::FilePath& plugin_path,
1826     const base::Callback<void(bool)>& callback) {
1827   PepperBrokerInfoBarDelegate::Create(web_contents, url, plugin_path, callback);
1828   return true;
1829 }
1830
1831 gfx::Size Browser::GetSizeForNewRenderView(WebContents* web_contents) const {
1832   // When navigating away from NTP with unpinned bookmark bar, the bookmark bar
1833   // would disappear on non-NTP pages, resulting in a bigger size for the new
1834   // render view.
1835   gfx::Size size = web_contents->GetContainerBounds().size();
1836   // Don't change render view size if bookmark bar is currently not detached,
1837   // or there's no pending entry, or navigating to a NTP page.
1838   if (size.IsEmpty() || bookmark_bar_state_ != BookmarkBar::DETACHED)
1839     return size;
1840   const NavigationEntry* pending_entry =
1841       web_contents->GetController().GetPendingEntry();
1842   if (pending_entry &&
1843       !chrome::IsNTPURL(pending_entry->GetVirtualURL(), profile_)) {
1844     size.Enlarge(
1845         0, window()->GetRenderViewHeightInsetWithDetachedBookmarkBar());
1846   }
1847   return size;
1848 }
1849
1850 ///////////////////////////////////////////////////////////////////////////////
1851 // Browser, CoreTabHelperDelegate implementation:
1852
1853 void Browser::SwapTabContents(content::WebContents* old_contents,
1854                               content::WebContents* new_contents,
1855                               bool did_start_load,
1856                               bool did_finish_load) {
1857   int index = tab_strip_model_->GetIndexOfWebContents(old_contents);
1858   DCHECK_NE(TabStripModel::kNoTab, index);
1859   tab_strip_model_->ReplaceWebContentsAt(index, new_contents);
1860 }
1861
1862 bool Browser::CanReloadContents(content::WebContents* web_contents) const {
1863   return chrome::CanReload(this);
1864 }
1865
1866 bool Browser::CanSaveContents(content::WebContents* web_contents) const {
1867   return chrome::CanSavePage(this);
1868 }
1869
1870 ///////////////////////////////////////////////////////////////////////////////
1871 // Browser, SearchEngineTabHelperDelegate implementation:
1872
1873 void Browser::ConfirmAddSearchProvider(TemplateURL* template_url,
1874                                        Profile* profile) {
1875   window()->ConfirmAddSearchProvider(template_url, profile);
1876 }
1877
1878 ///////////////////////////////////////////////////////////////////////////////
1879 // Browser, SearchTabHelperDelegate implementation:
1880
1881 void Browser::NavigateOnThumbnailClick(const GURL& url,
1882                                        WindowOpenDisposition disposition,
1883                                        content::WebContents* source_contents) {
1884   DCHECK(source_contents);
1885   // We're guaranteed that AUTO_BOOKMARK is the right transition since this only
1886   // gets called to handle clicks in the new tab page (to navigate to most
1887   // visited item URLs) and in the search results page (to navigate to
1888   // privileged destinations (e.g. chrome://URLs)).
1889   //
1890   // TODO(kmadhusu): Page transitions to privileged destinations should be
1891   // marked as "LINK" instead of "AUTO_BOOKMARK"?
1892   chrome::NavigateParams params(this, url,
1893                                 ui::PAGE_TRANSITION_AUTO_BOOKMARK);
1894   params.referrer = content::Referrer();
1895   params.source_contents = source_contents;
1896   params.disposition = disposition;
1897   params.is_renderer_initiated = false;
1898   params.initiating_profile = profile_;
1899   chrome::Navigate(&params);
1900 }
1901
1902 void Browser::OnWebContentsInstantSupportDisabled(
1903     const content::WebContents* web_contents) {
1904   DCHECK(web_contents);
1905   if (tab_strip_model_->GetActiveWebContents() == web_contents)
1906     UpdateToolbar(false);
1907 }
1908
1909 OmniboxView* Browser::GetOmniboxView() {
1910   return window_->GetLocationBar()->GetOmniboxView();
1911 }
1912
1913 std::set<std::string> Browser::GetOpenUrls() {
1914   scoped_refptr<history::TopSites> top_sites =
1915       TopSitesFactory::GetForProfile(profile_);
1916   if (!top_sites)  // NULL for Incognito profiles.
1917     return std::set<std::string>();
1918
1919   std::set<std::string> open_urls;
1920   chrome::GetOpenUrls(*tab_strip_model_, *top_sites, &open_urls);
1921   return open_urls;
1922 }
1923
1924 ///////////////////////////////////////////////////////////////////////////////
1925 // Browser, web_modal::WebContentsModalDialogManagerDelegate implementation:
1926
1927 void Browser::SetWebContentsBlocked(content::WebContents* web_contents,
1928                                     bool blocked) {
1929   int index = tab_strip_model_->GetIndexOfWebContents(web_contents);
1930   if (index == TabStripModel::kNoTab) {
1931     NOTREACHED();
1932     return;
1933   }
1934   tab_strip_model_->SetTabBlocked(index, blocked);
1935   if (!blocked && tab_strip_model_->GetActiveWebContents() == web_contents)
1936     web_contents->Focus();
1937 }
1938
1939 web_modal::WebContentsModalDialogHost*
1940 Browser::GetWebContentsModalDialogHost() {
1941   return window_->GetWebContentsModalDialogHost();
1942 }
1943
1944 ///////////////////////////////////////////////////////////////////////////////
1945 // Browser, BookmarkTabHelperDelegate implementation:
1946
1947 void Browser::URLStarredChanged(content::WebContents* web_contents,
1948                                 bool starred) {
1949   if (web_contents == tab_strip_model_->GetActiveWebContents())
1950     window_->SetStarredState(starred);
1951 }
1952
1953 ///////////////////////////////////////////////////////////////////////////////
1954 // Browser, ZoomObserver implementation:
1955
1956 void Browser::OnZoomChanged(
1957     const ui_zoom::ZoomController::ZoomChangedEventData& data) {
1958   if (data.web_contents == tab_strip_model_->GetActiveWebContents()) {
1959     window_->ZoomChangedForActiveTab(data.can_show_bubble);
1960     // Change the zoom commands state based on the zoom state
1961     command_controller_->ZoomStateChanged();
1962   }
1963 }
1964
1965 ///////////////////////////////////////////////////////////////////////////////
1966 // Browser, ui::SelectFileDialog::Listener implementation:
1967
1968 void Browser::FileSelected(const base::FilePath& path, int index,
1969                            void* params) {
1970   FileSelectedWithExtraInfo(ui::SelectedFileInfo(path, path), index, params);
1971 }
1972
1973 void Browser::FileSelectedWithExtraInfo(const ui::SelectedFileInfo& file_info,
1974                                         int index,
1975                                         void* params) {
1976   profile_->set_last_selected_directory(file_info.file_path.DirName());
1977
1978   GURL url = net::FilePathToFileURL(file_info.local_path);
1979
1980 #if defined(OS_CHROMEOS)
1981   const GURL external_url =
1982       chromeos::CreateExternalFileURLFromPath(profile_, file_info.file_path);
1983   if (!external_url.is_empty())
1984     url = external_url;
1985 #endif
1986
1987   if (url.is_empty())
1988     return;
1989
1990   OpenURL(OpenURLParams(
1991       url, Referrer(), CURRENT_TAB, ui::PAGE_TRANSITION_TYPED, false));
1992 }
1993
1994 ///////////////////////////////////////////////////////////////////////////////
1995 // Browser, content::NotificationObserver implementation:
1996
1997 void Browser::Observe(int type,
1998                       const content::NotificationSource& source,
1999                       const content::NotificationDetails& details) {
2000   switch (type) {
2001     case extensions::NOTIFICATION_EXTENSION_PROCESS_TERMINATED: {
2002       Profile* profile = content::Source<Profile>(source).ptr();
2003       if (profile_->IsSameProfile(profile) && window()->GetLocationBar())
2004         window()->GetLocationBar()->UpdatePageActions();
2005       break;
2006     }
2007
2008 #if defined(ENABLE_THEMES)
2009     case chrome::NOTIFICATION_BROWSER_THEME_CHANGED:
2010       window()->UserChangedTheme();
2011       break;
2012 #endif
2013
2014     case chrome::NOTIFICATION_WEB_CONTENT_SETTINGS_CHANGED: {
2015       WebContents* web_contents = content::Source<WebContents>(source).ptr();
2016       if (web_contents == tab_strip_model_->GetActiveWebContents()) {
2017         LocationBar* location_bar = window()->GetLocationBar();
2018         if (location_bar)
2019           location_bar->UpdateContentSettingsIcons();
2020       }
2021       break;
2022     }
2023
2024     default:
2025       NOTREACHED() << "Got a notification we didn't register for.";
2026   }
2027 }
2028
2029 #if defined(ENABLE_EXTENSIONS)
2030 ///////////////////////////////////////////////////////////////////////////////
2031 // Browser, extensions::ExtensionRegistryObserver implementation:
2032
2033 void Browser::OnExtensionUninstalled(content::BrowserContext* browser_context,
2034                                      const extensions::Extension* extension,
2035                                      extensions::UninstallReason reason) {
2036   // During window creation on Windows we may end up calling into
2037   // SHAppBarMessage, which internally spawns a nested message loop.This
2038   // makes it possible for us to end up here before window creation has
2039   // completed, at which point window_ is NULL. See 94752 for details.
2040
2041   if (window() && window()->GetLocationBar())
2042     window()->GetLocationBar()->UpdatePageActions();
2043 }
2044
2045 void Browser::OnExtensionLoaded(content::BrowserContext* browser_context,
2046                                 const extensions::Extension* extension) {
2047   command_controller_->ExtensionStateChanged();
2048 }
2049
2050 void Browser::OnExtensionUnloaded(
2051     content::BrowserContext* browser_context,
2052     const extensions::Extension* extension,
2053     extensions::UnloadedExtensionInfo::Reason reason) {
2054   command_controller_->ExtensionStateChanged();
2055   if (window()->GetLocationBar())
2056     window()->GetLocationBar()->UpdatePageActions();
2057
2058   // Close any tabs from the unloaded extension, unless it's terminated,
2059   // in which case let the sad tabs remain.
2060   if (reason != extensions::UnloadedExtensionInfo::REASON_TERMINATE) {
2061     // Iterate backwards as we may remove items while iterating.
2062     for (int i = tab_strip_model_->count() - 1; i >= 0; --i) {
2063       WebContents* web_contents = tab_strip_model_->GetWebContentsAt(i);
2064       // Two cases are handled here:
2065
2066       // - The scheme check is for when an extension page is loaded in a
2067       // tab, e.g. chrome-extension://id/page.html.
2068       // - The extension_app check is for apps, which can have non-extension
2069       // schemes, e.g. https://mail.google.com if you have the Gmail app
2070       // installed.
2071       if ((web_contents->GetURL().SchemeIs(extensions::kExtensionScheme) &&
2072            web_contents->GetURL().host() == extension->id()) ||
2073           (extensions::TabHelper::FromWebContents(web_contents)
2074                ->extension_app() == extension)) {
2075         tab_strip_model_->CloseWebContentsAt(i, TabStripModel::CLOSE_NONE);
2076       }
2077     }
2078   }
2079 }
2080 #endif  // defined(ENABLE_EXTENSIONS)
2081
2082 ///////////////////////////////////////////////////////////////////////////////
2083 // Browser, translate::ContentTranslateDriver::Observer implementation:
2084
2085 void Browser::OnIsPageTranslatedChanged(content::WebContents* source) {
2086   DCHECK(source);
2087   if (tab_strip_model_->GetActiveWebContents() == source) {
2088     window_->SetTranslateIconToggled(
2089         ChromeTranslateClient::FromWebContents(
2090             source)->GetLanguageState().IsPageTranslated());
2091   }
2092 }
2093
2094 void Browser::OnTranslateEnabledChanged(content::WebContents* source) {
2095   DCHECK(source);
2096   if (tab_strip_model_->GetActiveWebContents() == source)
2097     UpdateToolbar(false);
2098 }
2099
2100 ///////////////////////////////////////////////////////////////////////////////
2101 // Browser, Command and state updating (private):
2102
2103 void Browser::OnDevToolsDisabledChanged() {
2104   if (profile_->GetPrefs()->GetBoolean(prefs::kDevToolsDisabled))
2105     content::DevToolsAgentHost::DetachAllClients();
2106 }
2107
2108 ///////////////////////////////////////////////////////////////////////////////
2109 // Browser, UI update coalescing and handling (private):
2110
2111 void Browser::UpdateToolbar(bool should_restore_state) {
2112   window_->UpdateToolbar(should_restore_state ?
2113       tab_strip_model_->GetActiveWebContents() : NULL);
2114 }
2115
2116 void Browser::ScheduleUIUpdate(WebContents* source,
2117                                unsigned changed_flags) {
2118   DCHECK(source);
2119   int index = tab_strip_model_->GetIndexOfWebContents(source);
2120   DCHECK_NE(TabStripModel::kNoTab, index);
2121
2122   // TODO(erikchen): Remove ScopedTracker below once http://crbug.com/466285
2123   // is fixed.
2124   tracked_objects::ScopedTracker tracking_profile1(
2125       FROM_HERE_WITH_EXPLICIT_FUNCTION(
2126           "466285 Browser::ScheduleUIUpdate::Toolbar"));
2127   // Do some synchronous updates.
2128   if (changed_flags & content::INVALIDATE_TYPE_URL) {
2129     if (source == tab_strip_model_->GetActiveWebContents()) {
2130       // Only update the URL for the current tab. Note that we do not update
2131       // the navigation commands since those would have already been updated
2132       // synchronously by NavigationStateChanged.
2133       UpdateToolbar(false);
2134     } else {
2135       // Clear the saved tab state for the tab that navigated, so that we don't
2136       // restore any user text after the old URL has been invalidated (e.g.,
2137       // after a new navigation commits in that tab while unfocused).
2138       window_->ResetToolbarTabState(source);
2139     }
2140     changed_flags &= ~content::INVALIDATE_TYPE_URL;
2141   }
2142
2143   // TODO(erikchen): Remove ScopedTracker below once http://crbug.com/466285
2144   // is fixed.
2145   tracked_objects::ScopedTracker tracking_profile2(
2146       FROM_HERE_WITH_EXPLICIT_FUNCTION(
2147           "466285 Browser::ScheduleUIUpdate::TabStripModel"));
2148   if (changed_flags & content::INVALIDATE_TYPE_LOAD) {
2149     // Update the loading state synchronously. This is so the throbber will
2150     // immediately start/stop, which gives a more snappy feel. We want to do
2151     // this for any tab so they start & stop quickly.
2152     tab_strip_model_->UpdateWebContentsStateAt(
2153         tab_strip_model_->GetIndexOfWebContents(source),
2154         TabStripModelObserver::LOADING_ONLY);
2155     // The status bubble needs to be updated during INVALIDATE_TYPE_LOAD too,
2156     // but we do that asynchronously by not stripping INVALIDATE_TYPE_LOAD from
2157     // changed_flags.
2158   }
2159
2160   if (changed_flags & content::INVALIDATE_TYPE_TITLE && !source->IsLoading()) {
2161     // To correctly calculate whether the title changed while not loading
2162     // we need to process the update synchronously. This state only matters for
2163     // the TabStripModel, so we notify the TabStripModel now and notify others
2164     // asynchronously.
2165     tab_strip_model_->UpdateWebContentsStateAt(
2166         tab_strip_model_->GetIndexOfWebContents(source),
2167         TabStripModelObserver::TITLE_NOT_LOADING);
2168   }
2169
2170   // If the only updates were synchronously handled above, we're done.
2171   if (changed_flags == 0)
2172     return;
2173
2174   // Save the dirty bits.
2175   scheduled_updates_[source] |= changed_flags;
2176
2177   if (!chrome_updater_factory_.HasWeakPtrs()) {
2178     // No task currently scheduled, start another.
2179     base::MessageLoop::current()->PostDelayedTask(
2180         FROM_HERE,
2181         base::Bind(&Browser::ProcessPendingUIUpdates,
2182                    chrome_updater_factory_.GetWeakPtr()),
2183         base::TimeDelta::FromMilliseconds(kUIUpdateCoalescingTimeMS));
2184   }
2185 }
2186
2187 void Browser::ProcessPendingUIUpdates() {
2188 #ifndef NDEBUG
2189   // Validate that all tabs we have pending updates for exist. This is scary
2190   // because the pending list must be kept in sync with any detached or
2191   // deleted tabs.
2192   for (UpdateMap::const_iterator i = scheduled_updates_.begin();
2193        i != scheduled_updates_.end(); ++i) {
2194     bool found = false;
2195     for (int tab = 0; tab < tab_strip_model_->count(); tab++) {
2196       if (tab_strip_model_->GetWebContentsAt(tab) == i->first) {
2197         found = true;
2198         break;
2199       }
2200     }
2201     DCHECK(found);
2202   }
2203 #endif
2204
2205   chrome_updater_factory_.InvalidateWeakPtrs();
2206
2207   // TODO(robliao): Remove ScopedTracker below once https://crbug.com/467185
2208   // is fixed.
2209   tracked_objects::ScopedTracker tracking_profile1(
2210       FROM_HERE_WITH_EXPLICIT_FUNCTION(
2211           "467185 Browser::ProcessPendingUIUpdates1"));
2212
2213   for (UpdateMap::const_iterator i = scheduled_updates_.begin();
2214        i != scheduled_updates_.end(); ++i) {
2215     // Do not dereference |contents|, it may be out-of-date!
2216     const WebContents* contents = i->first;
2217     unsigned flags = i->second;
2218
2219     if (contents == tab_strip_model_->GetActiveWebContents()) {
2220       // TODO(robliao): Remove ScopedTracker below once https://crbug.com/467185
2221       // is fixed.
2222       tracked_objects::ScopedTracker tracking_profile2(
2223           FROM_HERE_WITH_EXPLICIT_FUNCTION(
2224               "467185 Browser::ProcessPendingUIUpdates2"));
2225
2226       // Updates that only matter when the tab is selected go here.
2227
2228       // Updating the URL happens synchronously in ScheduleUIUpdate.
2229       if (flags & content::INVALIDATE_TYPE_LOAD && GetStatusBubble()) {
2230         GetStatusBubble()->SetStatus(CoreTabHelper::FromWebContents(
2231             tab_strip_model_->GetActiveWebContents())->GetStatusText());
2232       }
2233
2234       if (flags & (content::INVALIDATE_TYPE_TAB |
2235                    content::INVALIDATE_TYPE_TITLE)) {
2236         window_->UpdateTitleBar();
2237       }
2238     }
2239
2240     // Updates that don't depend upon the selected state go here.
2241     if (flags &
2242         (content::INVALIDATE_TYPE_TAB | content::INVALIDATE_TYPE_TITLE)) {
2243       // TODO(robliao): Remove ScopedTracker below once https://crbug.com/467185
2244       // is fixed.
2245       tracked_objects::ScopedTracker tracking_profile3(
2246           FROM_HERE_WITH_EXPLICIT_FUNCTION(
2247               "467185 Browser::ProcessPendingUIUpdates3"));
2248       tab_strip_model_->UpdateWebContentsStateAt(
2249           tab_strip_model_->GetIndexOfWebContents(contents),
2250           TabStripModelObserver::ALL);
2251     }
2252
2253     // Update the bookmark bar. It may happen that the tab is crashed, and if
2254     // so, the bookmark bar should be hidden.
2255     if (flags & content::INVALIDATE_TYPE_TAB) {
2256       // TODO(robliao): Remove ScopedTracker below once https://crbug.com/467185
2257       // is fixed.
2258       tracked_objects::ScopedTracker tracking_profile4(
2259           FROM_HERE_WITH_EXPLICIT_FUNCTION(
2260               "467185 Browser::ProcessPendingUIUpdates4"));
2261       UpdateBookmarkBarState(BOOKMARK_BAR_STATE_CHANGE_TAB_STATE);
2262     }
2263
2264     // We don't need to process INVALIDATE_STATE, since that's not visible.
2265   }
2266
2267   scheduled_updates_.clear();
2268 }
2269
2270 void Browser::RemoveScheduledUpdatesFor(WebContents* contents) {
2271   if (!contents)
2272     return;
2273
2274   UpdateMap::iterator i = scheduled_updates_.find(contents);
2275   if (i != scheduled_updates_.end())
2276     scheduled_updates_.erase(i);
2277 }
2278
2279 ///////////////////////////////////////////////////////////////////////////////
2280 // Browser, Getters for UI (private):
2281
2282 StatusBubble* Browser::GetStatusBubble() {
2283   // In kiosk and exclusive app mode, we want to always hide the status bubble.
2284   if (chrome::IsRunningInAppMode())
2285     return NULL;
2286
2287   return window_ ? window_->GetStatusBubble() : NULL;
2288 }
2289
2290 ///////////////////////////////////////////////////////////////////////////////
2291 // Browser, Session restore functions (private):
2292
2293 void Browser::SyncHistoryWithTabs(int index) {
2294   SessionService* session_service =
2295       SessionServiceFactory::GetForProfileIfExisting(profile());
2296   if (session_service) {
2297     for (int i = index; i < tab_strip_model_->count(); ++i) {
2298       WebContents* web_contents = tab_strip_model_->GetWebContentsAt(i);
2299       if (web_contents) {
2300         SessionTabHelper* session_tab_helper =
2301             SessionTabHelper::FromWebContents(web_contents);
2302         session_service->SetTabIndexInWindow(
2303             session_id(), session_tab_helper->session_id(), i);
2304         session_service->SetPinnedState(
2305             session_id(),
2306             session_tab_helper->session_id(),
2307             tab_strip_model_->IsTabPinned(i));
2308       }
2309     }
2310   }
2311 }
2312
2313 ///////////////////////////////////////////////////////////////////////////////
2314 // Browser, In-progress download termination handling (private):
2315
2316 bool Browser::CanCloseWithInProgressDownloads() {
2317   // If we've prompted, we need to hear from the user before we
2318   // can close.
2319   if (cancel_download_confirmation_state_ != NOT_PROMPTED)
2320     return cancel_download_confirmation_state_ != WAITING_FOR_RESPONSE;
2321
2322   int num_downloads_blocking;
2323   Browser::DownloadClosePreventionType dialog_type =
2324       OkToCloseWithInProgressDownloads(&num_downloads_blocking);
2325   if (dialog_type == DOWNLOAD_CLOSE_OK)
2326     return true;
2327
2328   // Closing this window will kill some downloads; prompt to make sure
2329   // that's ok.
2330   cancel_download_confirmation_state_ = WAITING_FOR_RESPONSE;
2331   window_->ConfirmBrowserCloseWithPendingDownloads(
2332       num_downloads_blocking,
2333       dialog_type,
2334       false,
2335       base::Bind(&Browser::InProgressDownloadResponse,
2336                  weak_factory_.GetWeakPtr()));
2337
2338   // Return false so the browser does not close.  We'll close if the user
2339   // confirms in the dialog.
2340   return false;
2341 }
2342
2343 ///////////////////////////////////////////////////////////////////////////////
2344 // Browser, Assorted utility functions (private):
2345
2346 void Browser::SetAsDelegate(WebContents* web_contents, bool set_delegate) {
2347   Browser* delegate = set_delegate ? this : NULL;
2348   // WebContents...
2349   web_contents->SetDelegate(delegate);
2350
2351   // ...and all the helpers.
2352   BookmarkTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2353   WebContentsModalDialogManager::FromWebContents(web_contents)->
2354       SetDelegate(delegate);
2355   CoreTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2356   SearchEngineTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2357   SearchTabHelper::FromWebContents(web_contents)->set_delegate(delegate);
2358   translate::ContentTranslateDriver& content_translate_driver =
2359       ChromeTranslateClient::FromWebContents(web_contents)->translate_driver();
2360   if (delegate) {
2361     ui_zoom::ZoomController::FromWebContents(web_contents)->AddObserver(this);
2362     content_translate_driver.AddObserver(this);
2363   } else {
2364     ui_zoom::ZoomController::FromWebContents(web_contents)->RemoveObserver(
2365         this);
2366     content_translate_driver.RemoveObserver(this);
2367   }
2368 }
2369
2370 void Browser::CloseFrame() {
2371   window_->Close();
2372 }
2373
2374 void Browser::TabDetachedAtImpl(content::WebContents* contents,
2375                                 int index,
2376                                 DetachType type) {
2377   if (type == DETACH_TYPE_DETACH) {
2378     // Save the current location bar state, but only if the tab being detached
2379     // is the selected tab.  Because saving state can conditionally revert the
2380     // location bar, saving the current tab's location bar state to a
2381     // non-selected tab can corrupt both tabs.
2382     if (contents == tab_strip_model_->GetActiveWebContents()) {
2383       LocationBar* location_bar = window()->GetLocationBar();
2384       if (location_bar)
2385         location_bar->SaveStateToContents(contents);
2386     }
2387
2388     if (!tab_strip_model_->closing_all())
2389       SyncHistoryWithTabs(0);
2390   }
2391
2392   SetAsDelegate(contents, false);
2393   RemoveScheduledUpdatesFor(contents);
2394
2395   if (find_bar_controller_.get() && index == tab_strip_model_->active_index()) {
2396     find_bar_controller_->ChangeWebContents(NULL);
2397   }
2398
2399   // Stop observing search model changes for this tab.
2400   search_delegate_->OnTabDetached(contents);
2401
2402   for (size_t i = 0; i < interstitial_observers_.size(); i++) {
2403     if (interstitial_observers_[i]->web_contents() != contents)
2404       continue;
2405
2406     delete interstitial_observers_[i];
2407     interstitial_observers_.erase(interstitial_observers_.begin() + i);
2408     return;
2409   }
2410 }
2411
2412 bool Browser::ShouldShowLocationBar() const {
2413   // Tabbed browser always show a location bar.
2414   if (is_type_tabbed())
2415     return true;
2416
2417   // Non-app windows that aren't tabbed or system windows should always show a
2418   // location bar, unless they are from a trusted source.
2419   if (!is_app())
2420     return !is_trusted_source();
2421
2422   if (ShouldUseWebAppFrame())
2423     return false;
2424
2425   // Bookmark apps should show the location bar.
2426   const std::string extension_id =
2427       web_app::GetExtensionIdFromApplicationName(app_name());
2428   const extensions::Extension* extension =
2429       extensions::ExtensionRegistry::Get(profile_)->GetExtensionById(
2430           extension_id, extensions::ExtensionRegistry::EVERYTHING);
2431   return extensions::ui_util::ShouldShowLocationBar(
2432       extension, tab_strip_model_->GetActiveWebContents());
2433 }
2434
2435 bool Browser::ShouldUseWebAppFrame() const {
2436   // Only use the web app frame for apps in ash, and only if the web app frame
2437   // is enabled.
2438   if (!is_app() || host_desktop_type() != chrome::HOST_DESKTOP_TYPE_ASH ||
2439       !IsWebAppFrameEnabled()) {
2440     return false;
2441   }
2442
2443   // Use the web app frame for hosted apps.
2444   const std::string extension_id =
2445       web_app::GetExtensionIdFromApplicationName(app_name());
2446   const extensions::Extension* extension =
2447       extensions::ExtensionRegistry::Get(profile_)->GetExtensionById(
2448           extension_id, extensions::ExtensionRegistry::EVERYTHING);
2449   return extension && extension->from_bookmark();
2450 }
2451
2452 bool Browser::SupportsWindowFeatureImpl(WindowFeature feature,
2453                                         bool check_fullscreen) const {
2454   bool hide_ui_for_fullscreen = check_fullscreen && ShouldHideUIForFullscreen();
2455
2456   unsigned int features = FEATURE_INFOBAR | FEATURE_DOWNLOADSHELF;
2457
2458   if (is_type_tabbed())
2459     features |= FEATURE_BOOKMARKBAR;
2460
2461   if (!hide_ui_for_fullscreen) {
2462     if (!is_type_tabbed())
2463       features |= FEATURE_TITLEBAR;
2464
2465     if (is_type_tabbed())
2466       features |= FEATURE_TABSTRIP;
2467
2468     if (is_type_tabbed())
2469       features |= FEATURE_TOOLBAR;
2470
2471     if (ShouldShowLocationBar())
2472       features |= FEATURE_LOCATIONBAR;
2473
2474     if (ShouldUseWebAppFrame())
2475       features |= FEATURE_WEBAPPFRAME;
2476   }
2477   return !!(features & feature);
2478 }
2479
2480 void Browser::UpdateBookmarkBarState(BookmarkBarStateChangeReason reason) {
2481   // TODO(robliao): Remove ScopedTracker below once https://crbug.com/467185 is
2482   // fixed.
2483   tracked_objects::ScopedTracker tracking_profile1(
2484       FROM_HERE_WITH_EXPLICIT_FUNCTION(
2485           "467185 Browser::UpdateBookmarkBarState1"));
2486   BookmarkBar::State state;
2487   // The bookmark bar is always hidden for Guest Sessions and in fullscreen
2488   // mode, unless on the new tab page.
2489   if (profile_->IsGuestSession()) {
2490     state = BookmarkBar::HIDDEN;
2491   } else if (browser_defaults::bookmarks_enabled &&
2492       profile_->GetPrefs()->GetBoolean(bookmarks::prefs::kShowBookmarkBar) &&
2493       !ShouldHideUIForFullscreen()) {
2494     state = BookmarkBar::SHOW;
2495   } else {
2496     // TODO(robliao): Remove ScopedTracker below once https://crbug.com/467185
2497     // is fixed.
2498     tracked_objects::ScopedTracker tracking_profile2(
2499         FROM_HERE_WITH_EXPLICIT_FUNCTION(
2500             "467185 Browser::UpdateBookmarkBarState2"));
2501     WebContents* web_contents = tab_strip_model_->GetActiveWebContents();
2502     BookmarkTabHelper* bookmark_tab_helper =
2503         web_contents ? BookmarkTabHelper::FromWebContents(web_contents) : NULL;
2504     if (bookmark_tab_helper && bookmark_tab_helper->ShouldShowBookmarkBar())
2505       state = BookmarkBar::DETACHED;
2506     else
2507       state = BookmarkBar::HIDDEN;
2508   }
2509
2510   if (state == bookmark_bar_state_)
2511     return;
2512
2513   bookmark_bar_state_ = state;
2514
2515   if (!window_)
2516     return;  // This is called from the constructor when window_ is NULL.
2517
2518   if (reason == BOOKMARK_BAR_STATE_CHANGE_TAB_SWITCH) {
2519     // Don't notify BrowserWindow on a tab switch as at the time this is invoked
2520     // BrowserWindow hasn't yet switched tabs. The BrowserWindow implementations
2521     // end up querying state once they process the tab switch.
2522     return;
2523   }
2524
2525   // TODO(robliao): Remove ScopedTracker below once https://crbug.com/467185 is
2526   // fixed.
2527   tracked_objects::ScopedTracker tracking_profile3(
2528       FROM_HERE_WITH_EXPLICIT_FUNCTION(
2529           "467185 Browser::UpdateBookmarkBarState3"));
2530
2531   bool should_animate = reason == BOOKMARK_BAR_STATE_CHANGE_PREF_CHANGE;
2532   window_->BookmarkBarStateChanged(should_animate ?
2533       BookmarkBar::ANIMATE_STATE_CHANGE :
2534       BookmarkBar::DONT_ANIMATE_STATE_CHANGE);
2535 }
2536
2537 bool Browser::ShouldHideUIForFullscreen() const {
2538   // Windows and GTK remove the top controls in fullscreen, but Mac and Ash
2539   // keep the controls in a slide-down panel.
2540   return window_ && window_->ShouldHideUIForFullscreen();
2541 }
2542
2543 bool Browser::MaybeCreateBackgroundContents(
2544     int route_id,
2545     int main_frame_route_id,
2546     WebContents* opener_web_contents,
2547     const base::string16& frame_name,
2548     const GURL& target_url,
2549     const std::string& partition_id,
2550     content::SessionStorageNamespace* session_storage_namespace) {
2551   GURL opener_url = opener_web_contents->GetURL();
2552   ExtensionService* extensions_service =
2553       extensions::ExtensionSystem::Get(profile_)->extension_service();
2554
2555   if (!opener_url.is_valid() ||
2556       frame_name.empty() ||
2557       !extensions_service ||
2558       !extensions_service->is_ready())
2559     return false;
2560
2561   // Only hosted apps have web extents, so this ensures that only hosted apps
2562   // can create BackgroundContents. We don't have to check for background
2563   // permission as that is checked in RenderMessageFilter when the CreateWindow
2564   // message is processed.
2565   const Extension* extension = extensions::ExtensionRegistry::Get(profile_)
2566                                    ->enabled_extensions()
2567                                    .GetHostedAppByURL(opener_url);
2568   if (!extension)
2569     return false;
2570
2571   // No BackgroundContents allowed if BackgroundContentsService doesn't exist.
2572   BackgroundContentsService* service =
2573       BackgroundContentsServiceFactory::GetForProfile(profile_);
2574   if (!service)
2575     return false;
2576
2577   // Ensure that we're trying to open this from the extension's process.
2578   SiteInstance* opener_site_instance = opener_web_contents->GetSiteInstance();
2579   extensions::ProcessMap* process_map = extensions::ProcessMap::Get(profile_);
2580   if (!opener_site_instance->GetProcess() ||
2581       !process_map->Contains(
2582           extension->id(), opener_site_instance->GetProcess()->GetID())) {
2583     return false;
2584   }
2585
2586   // Only allow a single background contents per app.
2587   bool allow_js_access = extensions::BackgroundInfo::AllowJSAccess(extension);
2588   BackgroundContents* existing =
2589       service->GetAppBackgroundContents(base::ASCIIToUTF16(extension->id()));
2590   if (existing) {
2591     // For non-scriptable background contents, ignore the request altogether,
2592     // (returning true, so that a regular WebContents isn't created either).
2593     if (!allow_js_access)
2594       return true;
2595     // For scriptable background pages, if one already exists, close it (even
2596     // if it was specified in the manifest).
2597     delete existing;
2598   }
2599
2600   // If script access is not allowed, create the the background contents in a
2601   // new SiteInstance, so that a separate process is used.
2602   scoped_refptr<content::SiteInstance> site_instance =
2603       allow_js_access ?
2604       opener_site_instance :
2605       content::SiteInstance::Create(opener_web_contents->GetBrowserContext());
2606
2607   // Passed all the checks, so this should be created as a BackgroundContents.
2608   BackgroundContents* contents =
2609       service->CreateBackgroundContents(site_instance.get(),
2610                                         route_id,
2611                                         main_frame_route_id,
2612                                         profile_,
2613                                         frame_name,
2614                                         base::ASCIIToUTF16(extension->id()),
2615                                         partition_id,
2616                                         session_storage_namespace);
2617
2618   // When a separate process is used, the original renderer cannot access the
2619   // new window later, thus we need to navigate the window now.
2620   if (contents && !allow_js_access) {
2621     contents->web_contents()->GetController().LoadURL(
2622         target_url,
2623         content::Referrer(),
2624         ui::PAGE_TRANSITION_LINK,
2625         std::string());  // No extra headers.
2626   }
2627
2628   return contents != NULL;
2629 }