chrome/browser/ui/browser_commands.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_commands.h"
   6
   7 #include "base/command_line.h"
   8 #include "base/metrics/histogram.h"
   9 #include "base/prefs/pref_service.h"
  10 #include "base/strings/utf_string_conversions.h"
  11 #include "chrome/app/chrome_command_ids.h"
  12 #include "chrome/browser/bookmarks/bookmark_model_factory.h"
  13 #include "chrome/browser/browser_process.h"
  14 #include "chrome/browser/browsing_data/browsing_data_helper.h"
  15 #include "chrome/browser/browsing_data/browsing_data_remover.h"
  16 #include "chrome/browser/chrome_notification_types.h"
  17 #include "chrome/browser/devtools/devtools_window.h"
  18 #include "chrome/browser/dom_distiller/tab_utils.h"
  19 #include "chrome/browser/lifetime/application_lifetime.h"
  20 #include "chrome/browser/platform_util.h"
  21 #include "chrome/browser/prefs/incognito_mode_prefs.h"
  22 #include "chrome/browser/profiles/profile.h"
  23 #include "chrome/browser/search/search.h"
  24 #include "chrome/browser/sessions/session_service_factory.h"
  25 #include "chrome/browser/sessions/tab_restore_service.h"
  26 #include "chrome/browser/sessions/tab_restore_service_delegate.h"
  27 #include "chrome/browser/sessions/tab_restore_service_factory.h"
  28 #include "chrome/browser/translate/chrome_translate_client.h"
  29 #include "chrome/browser/ui/accelerator_utils.h"
  30 #include "chrome/browser/ui/bookmarks/bookmark_utils.h"
  31 #include "chrome/browser/ui/browser.h"
  32 #include "chrome/browser/ui/browser_command_controller.h"
  33 #include "chrome/browser/ui/browser_dialogs.h"
  34 #include "chrome/browser/ui/browser_instant_controller.h"
  35 #include "chrome/browser/ui/browser_tab_restore_service_delegate.h"
  36 #include "chrome/browser/ui/browser_tabstrip.h"
  37 #include "chrome/browser/ui/browser_window.h"
  38 #include "chrome/browser/ui/chrome_pages.h"
  39 #include "chrome/browser/ui/exclusive_access/fullscreen_controller.h"
  40 #include "chrome/browser/ui/find_bar/find_bar.h"
  41 #include "chrome/browser/ui/find_bar/find_bar_controller.h"
  42 #include "chrome/browser/ui/find_bar/find_tab_helper.h"
  43 #include "chrome/browser/ui/location_bar/location_bar.h"
  44 #include "chrome/browser/ui/passwords/manage_passwords_ui_controller.h"
  45 #include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
  46 #include "chrome/browser/ui/search/search_tab_helper.h"
  47 #include "chrome/browser/ui/status_bubble.h"
  48 #include "chrome/browser/ui/tab_contents/core_tab_helper.h"
  49 #include "chrome/browser/ui/tab_dialogs.h"
  50 #include "chrome/browser/ui/tabs/tab_strip_model.h"
  51 #include "chrome/browser/upgrade_detector.h"
  52 #include "chrome/common/chrome_switches.h"
  53 #include "chrome/common/content_restriction.h"
  54 #include "chrome/common/pref_names.h"
  55 #include "components/bookmarks/browser/bookmark_model.h"
  56 #include "components/bookmarks/browser/bookmark_utils.h"
  57 #include "components/favicon/content/content_favicon_driver.h"
  58 #include "components/google/core/browser/google_util.h"
  59 #include "components/signin/core/browser/signin_header_helper.h"
  60 #include "components/translate/core/browser/language_state.h"
  61 #include "components/ui/zoom/page_zoom.h"
  62 #include "components/ui/zoom/zoom_controller.h"
  63 #include "components/version_info/version_info.h"
  64 #include "components/web_modal/web_contents_modal_dialog_manager.h"
  65 #include "content/public/browser/devtools_agent_host.h"
  66 #include "content/public/browser/navigation_controller.h"
  67 #include "content/public/browser/navigation_entry.h"
  68 #include "content/public/browser/notification_service.h"
  69 #include "content/public/browser/page_navigator.h"
  70 #include "content/public/browser/render_view_host.h"
  71 #include "content/public/browser/render_widget_host_view.h"
  72 #include "content/public/browser/user_metrics.h"
  73 #include "content/public/browser/web_contents.h"
  74 #include "content/public/common/page_state.h"
  75 #include "content/public/common/renderer_preferences.h"
  76 #include "content/public/common/url_constants.h"
  77 #include "content/public/common/url_utils.h"
  78 #include "content/public/common/user_agent.h"
  79 #include "net/base/escape.h"
  80 #include "ui/events/keycodes/keyboard_codes.h"
  81
  82 #if defined(OS_WIN)
  83 #include "chrome/browser/ui/metro_pin_tab_helper_win.h"
  84 #endif
  85
  86 #if defined(ENABLE_EXTENSIONS)
  87 #include "chrome/browser/extensions/api/commands/command_service.h"
  88 #include "chrome/browser/extensions/api/extension_action/extension_action_api.h"
  89 #include "chrome/browser/extensions/tab_helper.h"
  90 #include "chrome/browser/web_applications/web_app.h"
  91 #include "chrome/common/extensions/extension_metrics.h"
  92 #include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
  93 #include "extensions/browser/extension_registry.h"
  94 #include "extensions/browser/extension_system.h"
  95 #include "extensions/common/extension.h"
  96 #include "extensions/common/extension_set.h"
  97 #endif
  98
  99 #if defined(ENABLE_PRINTING)
 100 #include "chrome/browser/printing/print_view_manager_common.h"
 101 #if defined(ENABLE_PRINT_PREVIEW)
 102 #include "chrome/browser/printing/print_preview_dialog_controller.h"
 103 #endif  // defined(ENABLE_PRINT_PREVIEW)
 104 #endif  // defined(ENABLE_PRINTING)
 105
 106 #if defined(ENABLE_RLZ)
 107 #include "components/rlz/rlz_tracker.h"
 108 #endif
 109
 110 namespace {
 111 const char kOsOverrideForTabletSite[] = "Linux; Android 4.0.3";
 112 }
 113
 114 using base::UserMetricsAction;
 115 using bookmarks::BookmarkModel;
 116 using content::NavigationController;
 117 using content::NavigationEntry;
 118 using content::OpenURLParams;
 119 using content::Referrer;
 120 using content::SSLStatus;
 121 using content::WebContents;
 122
 123 namespace chrome {
 124 namespace {
 125
 126 bool CanBookmarkCurrentPageInternal(const Browser* browser,
 127                                     bool check_remove_bookmark_ui) {
 128   BookmarkModel* model =
 129       BookmarkModelFactory::GetForProfile(browser->profile());
 130   return browser_defaults::bookmarks_enabled &&
 131       browser->profile()->GetPrefs()->GetBoolean(
 132           bookmarks::prefs::kEditBookmarksEnabled) &&
 133       model && model->loaded() && browser->is_type_tabbed() &&
 134       (!check_remove_bookmark_ui ||
 135            !chrome::ShouldRemoveBookmarkThisPageUI(browser->profile()));
 136 }
 137
 138 #if defined(ENABLE_EXTENSIONS)
 139 bool GetBookmarkOverrideCommand(
 140     Profile* profile,
 141     const extensions::Extension** extension,
 142     extensions::Command* command,
 143     extensions::CommandService::ExtensionCommandType* command_type) {
 144   DCHECK(extension);
 145   DCHECK(command);
 146   DCHECK(command_type);
 147
 148   ui::Accelerator bookmark_page_accelerator =
 149       chrome::GetPrimaryChromeAcceleratorForCommandId(IDC_BOOKMARK_PAGE);
 150   if (bookmark_page_accelerator.key_code() == ui::VKEY_UNKNOWN)
 151     return false;
 152
 153   extensions::CommandService* command_service =
 154       extensions::CommandService::Get(profile);
 155   const extensions::ExtensionSet& extension_set =
 156       extensions::ExtensionRegistry::Get(profile)->enabled_extensions();
 157   for (extensions::ExtensionSet::const_iterator i = extension_set.begin();
 158        i != extension_set.end();
 159        ++i) {
 160     extensions::Command prospective_command;
 161     extensions::CommandService::ExtensionCommandType prospective_command_type;
 162     if (command_service->GetSuggestedExtensionCommand(
 163             (*i)->id(), bookmark_page_accelerator, &prospective_command,
 164             &prospective_command_type)) {
 165       *extension = i->get();
 166       *command = prospective_command;
 167       *command_type = prospective_command_type;
 168       return true;
 169     }
 170   }
 171   return false;
 172 }
 173 #endif
 174
 175 // Based on |disposition|, creates a new tab as necessary, and returns the
 176 // appropriate tab to navigate.  If that tab is the current tab, reverts the
 177 // location bar contents, since all browser-UI-triggered navigations should
 178 // revert any omnibox edits in the current tab.
 179 WebContents* GetTabAndRevertIfNecessary(Browser* browser,
 180                                         WindowOpenDisposition disposition) {
 181   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
 182   switch (disposition) {
 183     case NEW_FOREGROUND_TAB:
 184     case NEW_BACKGROUND_TAB: {
 185       WebContents* new_tab = current_tab->Clone();
 186       browser->tab_strip_model()->AddWebContents(
 187           new_tab, -1, ui::PAGE_TRANSITION_LINK,
 188           (disposition == NEW_FOREGROUND_TAB) ?
 189               TabStripModel::ADD_ACTIVE : TabStripModel::ADD_NONE);
 190       return new_tab;
 191     }
 192     case NEW_WINDOW: {
 193       WebContents* new_tab = current_tab->Clone();
 194       Browser* new_browser = new Browser(Browser::CreateParams(
 195           browser->profile(), browser->host_desktop_type()));
 196       new_browser->tab_strip_model()->AddWebContents(
 197           new_tab, -1, ui::PAGE_TRANSITION_LINK,
 198           TabStripModel::ADD_ACTIVE);
 199       new_browser->window()->Show();
 200       return new_tab;
 201     }
 202     default:
 203       browser->window()->GetLocationBar()->Revert();
 204       return current_tab;
 205   }
 206 }
 207
 208 void ReloadInternal(Browser* browser,
 209                     WindowOpenDisposition disposition,
 210                     bool ignore_cache) {
 211   // As this is caused by a user action, give the focus to the page.
 212   //
 213   // Also notify RenderViewHostDelegate of the user gesture; this is
 214   // normally done in Browser::Navigate, but a reload bypasses Navigate.
 215   WebContents* new_tab = GetTabAndRevertIfNecessary(browser, disposition);
 216   new_tab->UserGestureDone();
 217   if (!new_tab->FocusLocationBarByDefault())
 218     new_tab->Focus();
 219
 220   if (DevToolsWindow* devtools =
 221       DevToolsWindow::GetInstanceForInspectedWebContents(new_tab)) {
 222     devtools->ReloadInspectedWebContents(ignore_cache);
 223     return;
 224   }
 225
 226   if (ignore_cache)
 227     new_tab->GetController().ReloadIgnoringCache(true);
 228   else
 229     new_tab->GetController().Reload(true);
 230 }
 231
 232 bool IsShowingWebContentsModalDialog(Browser* browser) {
 233   WebContents* web_contents =
 234       browser->tab_strip_model()->GetActiveWebContents();
 235   if (!web_contents)
 236     return false;
 237
 238   // TODO(gbillock): This is currently called in production by the CanPrint
 239   // method, and may be too restrictive if we allow print preview to overlap.
 240   // Re-assess how to queue print preview after we know more about popup
 241   // management policy.
 242   const web_modal::WebContentsModalDialogManager* manager =
 243       web_modal::WebContentsModalDialogManager::FromWebContents(web_contents);
 244   return manager && manager->IsDialogActive();
 245 }
 246
 247 #if defined(ENABLE_BASIC_PRINTING)
 248 bool PrintPreviewShowing(const Browser* browser) {
 249 #if defined(ENABLE_PRINT_PREVIEW)
 250   WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
 251   printing::PrintPreviewDialogController* controller =
 252       printing::PrintPreviewDialogController::GetInstance();
 253   return controller && (controller->GetPrintPreviewForContents(contents) ||
 254                         controller->is_creating_print_preview_dialog());
 255 #else
 256   return false;
 257 #endif
 258 }
 259 #endif  // ENABLE_BASIC_PRINTING
 260
 261 }  // namespace
 262
 263 bool IsCommandEnabled(Browser* browser, int command) {
 264   return browser->command_controller()->command_updater()->IsCommandEnabled(
 265       command);
 266 }
 267
 268 bool SupportsCommand(Browser* browser, int command) {
 269   return browser->command_controller()->command_updater()->SupportsCommand(
 270       command);
 271 }
 272
 273 bool ExecuteCommand(Browser* browser, int command) {
 274   return browser->command_controller()->command_updater()->ExecuteCommand(
 275       command);
 276 }
 277
 278 bool ExecuteCommandWithDisposition(Browser* browser,
 279                                    int command,
 280                                    WindowOpenDisposition disposition) {
 281   return browser->command_controller()->command_updater()->
 282       ExecuteCommandWithDisposition(command, disposition);
 283 }
 284
 285 void UpdateCommandEnabled(Browser* browser, int command, bool enabled) {
 286   browser->command_controller()->command_updater()->UpdateCommandEnabled(
 287       command, enabled);
 288 }
 289
 290 void AddCommandObserver(Browser* browser,
 291                         int command,
 292                         CommandObserver* observer) {
 293   browser->command_controller()->command_updater()->AddCommandObserver(
 294       command, observer);
 295 }
 296
 297 void RemoveCommandObserver(Browser* browser,
 298                            int command,
 299                            CommandObserver* observer) {
 300   browser->command_controller()->command_updater()->RemoveCommandObserver(
 301       command, observer);
 302 }
 303
 304 int GetContentRestrictions(const Browser* browser) {
 305   int content_restrictions = 0;
 306   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
 307   if (current_tab) {
 308     CoreTabHelper* core_tab_helper =
 309         CoreTabHelper::FromWebContents(current_tab);
 310     content_restrictions = core_tab_helper->content_restrictions();
 311     NavigationEntry* last_committed_entry =
 312         current_tab->GetController().GetLastCommittedEntry();
 313     if (!content::IsSavableURL(
 314             last_committed_entry ? last_committed_entry->GetURL() : GURL()) ||
 315         current_tab->ShowingInterstitialPage())
 316       content_restrictions |= CONTENT_RESTRICTION_SAVE;
 317     if (current_tab->ShowingInterstitialPage())
 318       content_restrictions |= CONTENT_RESTRICTION_PRINT;
 319   }
 320   return content_restrictions;
 321 }
 322
 323 void NewEmptyWindow(Profile* profile, HostDesktopType desktop_type) {
 324   bool incognito = profile->IsOffTheRecord();
 325   PrefService* prefs = profile->GetPrefs();
 326   if (incognito) {
 327     if (IncognitoModePrefs::GetAvailability(prefs) ==
 328           IncognitoModePrefs::DISABLED) {
 329       incognito = false;
 330     }
 331   } else if (profile->IsGuestSession() ||
 332              (browser_defaults::kAlwaysOpenIncognitoWindow &&
 333               IncognitoModePrefs::ShouldLaunchIncognito(
 334                   *base::CommandLine::ForCurrentProcess(), prefs))) {
 335     incognito = true;
 336   }
 337
 338   if (incognito) {
 339     content::RecordAction(UserMetricsAction("NewIncognitoWindow"));
 340     OpenEmptyWindow(profile->GetOffTheRecordProfile(), desktop_type);
 341   } else {
 342     content::RecordAction(UserMetricsAction("NewWindow"));
 343     SessionService* session_service =
 344         SessionServiceFactory::GetForProfileForSessionRestore(
 345             profile->GetOriginalProfile());
 346     if (!session_service ||
 347         !session_service->RestoreIfNecessary(std::vector<GURL>())) {
 348       OpenEmptyWindow(profile->GetOriginalProfile(), desktop_type);
 349     }
 350   }
 351 }
 352
 353 Browser* OpenEmptyWindow(Profile* profile, HostDesktopType desktop_type) {
 354   Browser* browser = new Browser(
 355       Browser::CreateParams(Browser::TYPE_TABBED, profile, desktop_type));
 356   AddTabAt(browser, GURL(), -1, true);
 357   browser->window()->Show();
 358   return browser;
 359 }
 360
 361 void OpenWindowWithRestoredTabs(Profile* profile,
 362                                 HostDesktopType host_desktop_type) {
 363   TabRestoreService* service = TabRestoreServiceFactory::GetForProfile(profile);
 364   if (service)
 365     service->RestoreMostRecentEntry(NULL, host_desktop_type);
 366 }
 367
 368 void OpenURLOffTheRecord(Profile* profile,
 369                          const GURL& url,
 370                          chrome::HostDesktopType desktop_type) {
 371   ScopedTabbedBrowserDisplayer displayer(profile->GetOffTheRecordProfile(),
 372                                          desktop_type);
 373   AddSelectedTabWithURL(displayer.browser(), url,
 374       ui::PAGE_TRANSITION_LINK);
 375 }
 376
 377 bool CanGoBack(const Browser* browser) {
 378   return browser->tab_strip_model()->GetActiveWebContents()->
 379       GetController().CanGoBack();
 380 }
 381
 382 void GoBack(Browser* browser, WindowOpenDisposition disposition) {
 383   content::RecordAction(UserMetricsAction("Back"));
 384
 385   if (CanGoBack(browser)) {
 386     WebContents* current_tab =
 387         browser->tab_strip_model()->GetActiveWebContents();
 388     WebContents* new_tab = GetTabAndRevertIfNecessary(browser, disposition);
 389     // If we are on an interstitial page and clone the tab, it won't be copied
 390     // to the new tab, so we don't need to go back.
 391     if ((new_tab == current_tab) || !current_tab->ShowingInterstitialPage())
 392       new_tab->GetController().GoBack();
 393   }
 394 }
 395
 396 bool CanGoForward(const Browser* browser) {
 397   return browser->tab_strip_model()->GetActiveWebContents()->
 398       GetController().CanGoForward();
 399 }
 400
 401 void GoForward(Browser* browser, WindowOpenDisposition disposition) {
 402   content::RecordAction(UserMetricsAction("Forward"));
 403   if (CanGoForward(browser)) {
 404     GetTabAndRevertIfNecessary(browser, disposition)->
 405         GetController().GoForward();
 406   }
 407 }
 408
 409 bool NavigateToIndexWithDisposition(Browser* browser,
 410                                     int index,
 411                                     WindowOpenDisposition disposition) {
 412   NavigationController* controller =
 413       &GetTabAndRevertIfNecessary(browser, disposition)->GetController();
 414   if (index < 0 || index >= controller->GetEntryCount())
 415     return false;
 416   controller->GoToIndex(index);
 417   return true;
 418 }
 419
 420 void Reload(Browser* browser, WindowOpenDisposition disposition) {
 421   content::RecordAction(UserMetricsAction("Reload"));
 422   ReloadInternal(browser, disposition, false);
 423 }
 424
 425 void ReloadIgnoringCache(Browser* browser, WindowOpenDisposition disposition) {
 426   content::RecordAction(UserMetricsAction("ReloadIgnoringCache"));
 427   ReloadInternal(browser, disposition, true);
 428 }
 429
 430 bool CanReload(const Browser* browser) {
 431   return !browser->is_devtools();
 432 }
 433
 434 void Home(Browser* browser, WindowOpenDisposition disposition) {
 435   content::RecordAction(UserMetricsAction("Home"));
 436
 437   std::string extra_headers;
 438 #if defined(ENABLE_RLZ) && !defined(OS_IOS)
 439   // If the home page is a Google home page, add the RLZ header to the request.
 440   PrefService* pref_service = browser->profile()->GetPrefs();
 441   if (pref_service) {
 442     if (google_util::IsGoogleHomePageUrl(
 443         GURL(pref_service->GetString(prefs::kHomePage)))) {
 444       extra_headers = rlz::RLZTracker::GetAccessPointHttpHeader(
 445           rlz::RLZTracker::ChromeHomePage());
 446     }
 447   }
 448 #endif  // defined(ENABLE_RLZ) && !defined(OS_IOS)
 449
 450   GURL url = browser->profile()->GetHomePage();
 451
 452 #if defined(ENABLE_EXTENSIONS)
 453   // With bookmark apps enabled, hosted apps should return to their launch page
 454   // when the home button is pressed.
 455   if (browser->is_app()) {
 456     const extensions::Extension* extension =
 457         extensions::ExtensionRegistry::Get(browser->profile())
 458             ->GetExtensionById(
 459                 web_app::GetExtensionIdFromApplicationName(browser->app_name()),
 460                 extensions::ExtensionRegistry::EVERYTHING);
 461     if (!extension)
 462       return;
 463
 464     url = extensions::AppLaunchInfo::GetLaunchWebURL(extension);
 465   }
 466 #endif
 467
 468   OpenURLParams params(
 469       url, Referrer(), disposition,
 470       ui::PageTransitionFromInt(
 471           ui::PAGE_TRANSITION_AUTO_BOOKMARK |
 472           ui::PAGE_TRANSITION_HOME_PAGE),
 473       false);
 474   params.extra_headers = extra_headers;
 475   browser->OpenURL(params);
 476 }
 477
 478 void OpenCurrentURL(Browser* browser) {
 479   content::RecordAction(UserMetricsAction("LoadURL"));
 480   LocationBar* location_bar = browser->window()->GetLocationBar();
 481   if (!location_bar)
 482     return;
 483
 484   GURL url(location_bar->GetDestinationURL());
 485
 486   ui::PageTransition page_transition = location_bar->GetPageTransition();
 487   ui::PageTransition page_transition_without_qualifier(
 488       ui::PageTransitionStripQualifier(page_transition));
 489   WindowOpenDisposition open_disposition =
 490       location_bar->GetWindowOpenDisposition();
 491   // A PAGE_TRANSITION_TYPED means the user has typed a URL. We do not want to
 492   // open URLs with instant_controller since in some cases it disregards it
 493   // and performs a search instead. For example, when using CTRL-Enter, the
 494   // location_bar is aware of the URL but instant is not.
 495   // Instant should also not handle PAGE_TRANSITION_RELOAD because its knowledge
 496   // of the omnibox text may be stale if the user focuses in the omnibox and
 497   // presses enter without typing anything.
 498   if (page_transition_without_qualifier != ui::PAGE_TRANSITION_TYPED &&
 499       page_transition_without_qualifier != ui::PAGE_TRANSITION_RELOAD &&
 500       browser->instant_controller() &&
 501       browser->instant_controller()->OpenInstant(open_disposition, url))
 502     return;
 503
 504   NavigateParams params(browser, url, page_transition);
 505   params.disposition = open_disposition;
 506   // Use ADD_INHERIT_OPENER so that all pages opened by the omnibox at least
 507   // inherit the opener. In some cases the tabstrip will determine the group
 508   // should be inherited, in which case the group is inherited instead of the
 509   // opener.
 510   params.tabstrip_add_types =
 511       TabStripModel::ADD_FORCE_INDEX | TabStripModel::ADD_INHERIT_OPENER;
 512   Navigate(&params);
 513
 514 #if defined(ENABLE_EXTENSIONS)
 515   DCHECK(extensions::ExtensionSystem::Get(
 516       browser->profile())->extension_service());
 517   const extensions::Extension* extension =
 518       extensions::ExtensionRegistry::Get(browser->profile())
 519           ->enabled_extensions().GetAppByURL(url);
 520   if (extension) {
 521     extensions::RecordAppLaunchType(extension_misc::APP_LAUNCH_OMNIBOX_LOCATION,
 522                                     extension->GetType());
 523   }
 524 #endif
 525 }
 526
 527 void Stop(Browser* browser) {
 528   content::RecordAction(UserMetricsAction("Stop"));
 529   browser->tab_strip_model()->GetActiveWebContents()->Stop();
 530 }
 531
 532 void NewWindow(Browser* browser) {
 533   NewEmptyWindow(browser->profile()->GetOriginalProfile(),
 534                  browser->host_desktop_type());
 535 }
 536
 537 void NewIncognitoWindow(Browser* browser) {
 538   NewEmptyWindow(browser->profile()->GetOffTheRecordProfile(),
 539                  browser->host_desktop_type());
 540 }
 541
 542 void CloseWindow(Browser* browser) {
 543   content::RecordAction(UserMetricsAction("CloseWindow"));
 544   browser->window()->Close();
 545 }
 546
 547 void NewTab(Browser* browser) {
 548   content::RecordAction(UserMetricsAction("NewTab"));
 549   // TODO(asvitkine): This is invoked programmatically from several places.
 550   // Audit the code and change it so that the histogram only gets collected for
 551   // user-initiated commands.
 552   UMA_HISTOGRAM_ENUMERATION("Tab.NewTab", TabStripModel::NEW_TAB_COMMAND,
 553                             TabStripModel::NEW_TAB_ENUM_COUNT);
 554
 555   if (browser->is_type_tabbed()) {
 556     AddTabAt(browser, GURL(), -1, true);
 557     browser->tab_strip_model()->GetActiveWebContents()->RestoreFocus();
 558   } else {
 559     ScopedTabbedBrowserDisplayer displayer(browser->profile(),
 560                                            browser->host_desktop_type());
 561     Browser* b = displayer.browser();
 562     AddTabAt(b, GURL(), -1, true);
 563     b->window()->Show();
 564     // The call to AddBlankTabAt above did not set the focus to the tab as its
 565     // window was not active, so we have to do it explicitly.
 566     // See http://crbug.com/6380.
 567     b->tab_strip_model()->GetActiveWebContents()->RestoreFocus();
 568   }
 569 }
 570
 571 void CloseTab(Browser* browser) {
 572   content::RecordAction(UserMetricsAction("CloseTab_Accelerator"));
 573   browser->tab_strip_model()->CloseSelectedTabs();
 574 }
 575
 576 bool CanZoomIn(content::WebContents* contents) {
 577   ui_zoom::ZoomController* zoom_controller =
 578       ui_zoom::ZoomController::FromWebContents(contents);
 579   return zoom_controller->GetZoomPercent() != contents->GetMaximumZoomPercent();
 580 }
 581
 582 bool CanZoomOut(content::WebContents* contents) {
 583   ui_zoom::ZoomController* zoom_controller =
 584       ui_zoom::ZoomController::FromWebContents(contents);
 585   return zoom_controller->GetZoomPercent() !=
 586       contents->GetMinimumZoomPercent();
 587 }
 588
 589 bool CanResetZoom(content::WebContents* contents) {
 590   ui_zoom::ZoomController* zoom_controller =
 591       ui_zoom::ZoomController::FromWebContents(contents);
 592   return !zoom_controller->IsAtDefaultZoom() ||
 593          !zoom_controller->PageScaleFactorIsOne();
 594 }
 595
 596 TabStripModelDelegate::RestoreTabType GetRestoreTabType(
 597     const Browser* browser) {
 598   TabRestoreService* service =
 599       TabRestoreServiceFactory::GetForProfile(browser->profile());
 600   if (!service || service->entries().empty())
 601     return TabStripModelDelegate::RESTORE_NONE;
 602   if (service->entries().front()->type == TabRestoreService::WINDOW)
 603     return TabStripModelDelegate::RESTORE_WINDOW;
 604   return TabStripModelDelegate::RESTORE_TAB;
 605 }
 606
 607 void SelectNextTab(Browser* browser) {
 608   content::RecordAction(UserMetricsAction("SelectNextTab"));
 609   browser->tab_strip_model()->SelectNextTab();
 610 }
 611
 612 void SelectPreviousTab(Browser* browser) {
 613   content::RecordAction(UserMetricsAction("SelectPrevTab"));
 614   browser->tab_strip_model()->SelectPreviousTab();
 615 }
 616
 617 void MoveTabNext(Browser* browser) {
 618   content::RecordAction(UserMetricsAction("MoveTabNext"));
 619   browser->tab_strip_model()->MoveTabNext();
 620 }
 621
 622 void MoveTabPrevious(Browser* browser) {
 623   content::RecordAction(UserMetricsAction("MoveTabPrevious"));
 624   browser->tab_strip_model()->MoveTabPrevious();
 625 }
 626
 627 void SelectNumberedTab(Browser* browser, int index) {
 628   if (index < browser->tab_strip_model()->count()) {
 629     content::RecordAction(UserMetricsAction("SelectNumberedTab"));
 630     browser->tab_strip_model()->ActivateTabAt(index, true);
 631   }
 632 }
 633
 634 void SelectLastTab(Browser* browser) {
 635   content::RecordAction(UserMetricsAction("SelectLastTab"));
 636   browser->tab_strip_model()->SelectLastTab();
 637 }
 638
 639 void DuplicateTab(Browser* browser) {
 640   content::RecordAction(UserMetricsAction("Duplicate"));
 641   DuplicateTabAt(browser, browser->tab_strip_model()->active_index());
 642 }
 643
 644 bool CanDuplicateTab(const Browser* browser) {
 645   return CanDuplicateTabAt(browser, browser->tab_strip_model()->active_index());
 646 }
 647
 648 WebContents* DuplicateTabAt(Browser* browser, int index) {
 649   WebContents* contents = browser->tab_strip_model()->GetWebContentsAt(index);
 650   CHECK(contents);
 651   WebContents* contents_dupe = contents->Clone();
 652
 653   bool pinned = false;
 654   if (browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
 655     // If this is a tabbed browser, just create a duplicate tab inside the same
 656     // window next to the tab being duplicated.
 657     int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
 658     pinned = browser->tab_strip_model()->IsTabPinned(index);
 659     int add_types = TabStripModel::ADD_ACTIVE |
 660         TabStripModel::ADD_INHERIT_GROUP |
 661         (pinned ? TabStripModel::ADD_PINNED : 0);
 662     browser->tab_strip_model()->InsertWebContentsAt(
 663         index + 1, contents_dupe, add_types);
 664   } else {
 665     Browser* new_browser = NULL;
 666     if (browser->is_app() && !browser->is_type_popup()) {
 667       new_browser = new Browser(
 668           Browser::CreateParams::CreateForApp(browser->app_name(),
 669                                               browser->is_trusted_source(),
 670                                               gfx::Rect(),
 671                                               browser->profile(),
 672                                               browser->host_desktop_type()));
 673     } else {
 674       new_browser = new Browser(
 675           Browser::CreateParams(browser->type(), browser->profile(),
 676                                 browser->host_desktop_type()));
 677     }
 678     // Preserve the size of the original window. The new window has already
 679     // been given an offset by the OS, so we shouldn't copy the old bounds.
 680     BrowserWindow* new_window = new_browser->window();
 681     new_window->SetBounds(gfx::Rect(new_window->GetRestoredBounds().origin(),
 682                           browser->window()->GetRestoredBounds().size()));
 683
 684     // We need to show the browser now.  Otherwise ContainerWin assumes the
 685     // WebContents is invisible and won't size it.
 686     new_browser->window()->Show();
 687
 688     // The page transition below is only for the purpose of inserting the tab.
 689     new_browser->tab_strip_model()->AddWebContents(
 690         contents_dupe, -1,
 691         ui::PAGE_TRANSITION_LINK,
 692         TabStripModel::ADD_ACTIVE);
 693   }
 694
 695   SessionService* session_service =
 696       SessionServiceFactory::GetForProfileIfExisting(browser->profile());
 697   if (session_service)
 698     session_service->TabRestored(contents_dupe, pinned);
 699   return contents_dupe;
 700 }
 701
 702 bool CanDuplicateTabAt(const Browser* browser, int index) {
 703   WebContents* contents = browser->tab_strip_model()->GetWebContentsAt(index);
 704   // If an interstitial is showing, do not allow tab duplication, since
 705   // the last committed entry is what would get duplicated and is not
 706   // what the user expects to duplicate.
 707   return contents && !contents->ShowingInterstitialPage() &&
 708          contents->GetController().GetLastCommittedEntry();
 709 }
 710
 711 void ConvertPopupToTabbedBrowser(Browser* browser) {
 712   content::RecordAction(UserMetricsAction("ShowAsTab"));
 713   TabStripModel* tab_strip = browser->tab_strip_model();
 714   WebContents* contents =
 715       tab_strip->DetachWebContentsAt(tab_strip->active_index());
 716   Browser* b = new Browser(Browser::CreateParams(browser->profile(),
 717                                                  browser->host_desktop_type()));
 718   b->tab_strip_model()->AppendWebContents(contents, true);
 719   b->window()->Show();
 720 }
 721
 722 void Exit() {
 723   content::RecordAction(UserMetricsAction("Exit"));
 724   chrome::AttemptUserExit();
 725 }
 726
 727 void BookmarkCurrentPageIgnoringExtensionOverrides(Browser* browser) {
 728   content::RecordAction(UserMetricsAction("Star"));
 729
 730   BookmarkModel* model =
 731       BookmarkModelFactory::GetForProfile(browser->profile());
 732   if (!model || !model->loaded())
 733     return;  // Ignore requests until bookmarks are loaded.
 734
 735   GURL url;
 736   base::string16 title;
 737   WebContents* web_contents =
 738       browser->tab_strip_model()->GetActiveWebContents();
 739   GetURLAndTitleToBookmark(web_contents, &url, &title);
 740   bool is_bookmarked_by_any = model->IsBookmarked(url);
 741   if (!is_bookmarked_by_any &&
 742       web_contents->GetBrowserContext()->IsOffTheRecord()) {
 743     // If we're incognito the favicon may not have been saved. Save it now
 744     // so that bookmarks have an icon for the page.
 745     favicon::ContentFaviconDriver::FromWebContents(web_contents)->SaveFavicon();
 746   }
 747   bool was_bookmarked_by_user = bookmarks::IsBookmarkedByUser(model, url);
 748   bookmarks::AddIfNotBookmarked(model, url, title);
 749   bool is_bookmarked_by_user = bookmarks::IsBookmarkedByUser(model, url);
 750   // Make sure the model actually added a bookmark before showing the star. A
 751   // bookmark isn't created if the url is invalid.
 752   if (browser->window()->IsActive() && is_bookmarked_by_user) {
 753     // Only show the bubble if the window is active, otherwise we may get into
 754     // weird situations where the bubble is deleted as soon as it is shown.
 755     browser->window()->ShowBookmarkBubble(url, was_bookmarked_by_user);
 756   }
 757 }
 758
 759 void BookmarkCurrentPageAllowingExtensionOverrides(Browser* browser) {
 760   DCHECK(!chrome::ShouldRemoveBookmarkThisPageUI(browser->profile()));
 761
 762 #if defined(ENABLE_EXTENSIONS)
 763   const extensions::Extension* extension = NULL;
 764   extensions::Command command;
 765   extensions::CommandService::ExtensionCommandType command_type;
 766   if (GetBookmarkOverrideCommand(browser->profile(),
 767                                  &extension,
 768                                  &command,
 769                                  &command_type)) {
 770     switch (command_type) {
 771       case extensions::CommandService::NAMED:
 772         browser->window()->ExecuteExtensionCommand(extension, command);
 773         break;
 774       case extensions::CommandService::BROWSER_ACTION:
 775       case extensions::CommandService::PAGE_ACTION:
 776         // BookmarkCurrentPage is called through a user gesture, so it is safe
 777         // to grant the active tab permission.
 778         extensions::ExtensionActionAPI::Get(browser->profile())->
 779             ShowExtensionActionPopup(extension, browser, true);
 780         break;
 781     }
 782     return;
 783   }
 784 #endif
 785   BookmarkCurrentPageIgnoringExtensionOverrides(browser);
 786 }
 787
 788 bool CanBookmarkCurrentPage(const Browser* browser) {
 789   return CanBookmarkCurrentPageInternal(browser, true);
 790 }
 791
 792 void BookmarkAllTabs(Browser* browser) {
 793   content::RecordAction(UserMetricsAction("BookmarkAllTabs"));
 794   chrome::ShowBookmarkAllTabsDialog(browser);
 795 }
 796
 797 bool CanBookmarkAllTabs(const Browser* browser) {
 798   return browser->tab_strip_model()->count() > 1 &&
 799              !chrome::ShouldRemoveBookmarkOpenPagesUI(browser->profile()) &&
 800              CanBookmarkCurrentPageInternal(browser, false);
 801 }
 802
 803 void Translate(Browser* browser) {
 804   if (!browser->window()->IsActive())
 805     return;
 806
 807   WebContents* web_contents =
 808       browser->tab_strip_model()->GetActiveWebContents();
 809   ChromeTranslateClient* chrome_translate_client =
 810       ChromeTranslateClient::FromWebContents(web_contents);
 811
 812   translate::TranslateStep step = translate::TRANSLATE_STEP_BEFORE_TRANSLATE;
 813   if (chrome_translate_client) {
 814     if (chrome_translate_client->GetLanguageState().translation_pending())
 815       step = translate::TRANSLATE_STEP_TRANSLATING;
 816     else if (chrome_translate_client->GetLanguageState().IsPageTranslated())
 817       step = translate::TRANSLATE_STEP_AFTER_TRANSLATE;
 818   }
 819   browser->window()->ShowTranslateBubble(
 820       web_contents, step, translate::TranslateErrors::NONE, true);
 821 }
 822
 823 void ManagePasswordsForPage(Browser* browser) {
 824   WebContents* web_contents =
 825       browser->tab_strip_model()->GetActiveWebContents();
 826   ManagePasswordsUIController* controller =
 827       ManagePasswordsUIController::FromWebContents(web_contents);
 828   TabDialogs::FromWebContents(web_contents)->ShowManagePasswordsBubble(
 829       !controller->IsAutomaticallyOpeningBubble());
 830 }
 831
 832 #if defined(OS_WIN)
 833 void TogglePagePinnedToStartScreen(Browser* browser) {
 834   MetroPinTabHelper::FromWebContents(
 835       browser->tab_strip_model()->GetActiveWebContents())->
 836           TogglePinnedToStartScreen();
 837 }
 838 #endif
 839
 840 void SavePage(Browser* browser) {
 841   content::RecordAction(UserMetricsAction("SavePage"));
 842   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
 843   if (current_tab && current_tab->GetContentsMimeType() == "application/pdf")
 844     content::RecordAction(UserMetricsAction("PDF.SavePage"));
 845   current_tab->OnSavePage();
 846 }
 847
 848 bool CanSavePage(const Browser* browser) {
 849   // LocalState can be NULL in tests.
 850   if (g_browser_process->local_state() &&
 851       !g_browser_process->local_state()->GetBoolean(
 852       prefs::kAllowFileSelectionDialogs)) {
 853     return false;
 854   }
 855   return !browser->is_devtools() &&
 856       !(GetContentRestrictions(browser) & CONTENT_RESTRICTION_SAVE);
 857 }
 858
 859 void ShowFindBar(Browser* browser) {
 860   browser->GetFindBarController()->Show();
 861 }
 862
 863 void ShowWebsiteSettings(Browser* browser,
 864                          content::WebContents* web_contents,
 865                          const GURL& url,
 866                          const SSLStatus& ssl) {
 867   browser->window()->ShowWebsiteSettings(
 868       Profile::FromBrowserContext(web_contents->GetBrowserContext()),
 869       web_contents, url, ssl);
 870 }
 871
 872 void Print(Browser* browser) {
 873 #if defined(ENABLE_PRINTING)
 874   printing::StartPrint(
 875       browser->tab_strip_model()->GetActiveWebContents(),
 876       browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintPreviewDisabled),
 877       false);
 878 #endif  // defined(ENABLE_PRINTING)
 879 }
 880
 881 bool CanPrint(Browser* browser) {
 882   // Do not print when printing is disabled via pref or policy.
 883   // Do not print when a constrained window is showing. It's confusing.
 884   // TODO(gbillock): Need to re-assess the call to
 885   // IsShowingWebContentsModalDialog after a popup management policy is
 886   // refined -- we will probably want to just queue the print request, not
 887   // block it.
 888   return browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintingEnabled) &&
 889       !(IsShowingWebContentsModalDialog(browser) ||
 890       GetContentRestrictions(browser) & CONTENT_RESTRICTION_PRINT);
 891 }
 892
 893 #if defined(ENABLE_BASIC_PRINTING)
 894 void BasicPrint(Browser* browser) {
 895   printing::StartBasicPrint(browser->tab_strip_model()->GetActiveWebContents());
 896 }
 897
 898 bool CanBasicPrint(Browser* browser) {
 899   // If printing is not disabled via pref or policy, it is always possible to
 900   // advanced print when the print preview is visible.  The exception to this
 901   // is under Win8 ash, since showing the advanced print dialog will open it
 902   // modally on the Desktop and hang the browser.
 903 #if defined(OS_WIN)
 904   if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH)
 905     return false;
 906 #endif
 907
 908   return browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintingEnabled) &&
 909       (PrintPreviewShowing(browser) || CanPrint(browser));
 910 }
 911 #endif  // ENABLE_BASIC_PRINTING
 912
 913 void EmailPageLocation(Browser* browser) {
 914   content::RecordAction(UserMetricsAction("EmailPageLocation"));
 915   WebContents* wc = browser->tab_strip_model()->GetActiveWebContents();
 916   DCHECK(wc);
 917
 918   std::string title = net::EscapeQueryParamValue(
 919       base::UTF16ToUTF8(wc->GetTitle()), false);
 920   std::string page_url = net::EscapeQueryParamValue(wc->GetURL().spec(), false);
 921   std::string mailto = std::string("mailto:?subject=Fwd:%20") +
 922       title + "&body=%0A%0A" + page_url;
 923   platform_util::OpenExternal(browser->profile(), GURL(mailto));
 924 }
 925
 926 bool CanEmailPageLocation(const Browser* browser) {
 927   return browser->toolbar_model()->ShouldDisplayURL() &&
 928       browser->tab_strip_model()->GetActiveWebContents()->GetURL().is_valid();
 929 }
 930
 931 void CutCopyPaste(Browser* browser, int command_id) {
 932   if (command_id == IDC_CUT)
 933     content::RecordAction(UserMetricsAction("Cut"));
 934   else if (command_id == IDC_COPY)
 935     content::RecordAction(UserMetricsAction("Copy"));
 936   else
 937     content::RecordAction(UserMetricsAction("Paste"));
 938   browser->window()->CutCopyPaste(command_id);
 939 }
 940
 941 void Find(Browser* browser) {
 942   content::RecordAction(UserMetricsAction("Find"));
 943   FindInPage(browser, false, false);
 944 }
 945
 946 void FindNext(Browser* browser) {
 947   content::RecordAction(UserMetricsAction("FindNext"));
 948   FindInPage(browser, true, true);
 949 }
 950
 951 void FindPrevious(Browser* browser) {
 952   content::RecordAction(UserMetricsAction("FindPrevious"));
 953   FindInPage(browser, true, false);
 954 }
 955
 956 void FindInPage(Browser* browser, bool find_next, bool forward_direction) {
 957   ShowFindBar(browser);
 958   if (find_next) {
 959     base::string16 find_text;
 960     FindTabHelper* find_helper = FindTabHelper::FromWebContents(
 961         browser->tab_strip_model()->GetActiveWebContents());
 962 #if defined(OS_MACOSX)
 963     // We always want to search for the current contents of the find bar on
 964     // OS X. For regular profile it's always the current find pboard. For
 965     // Incognito window it's the newest value of the find pboard content and
 966     // user-typed text.
 967     FindBar* find_bar = browser->GetFindBarController()->find_bar();
 968     find_text = find_bar->GetFindText();
 969 #endif
 970     find_helper->StartFinding(find_text, forward_direction, false);
 971   }
 972 }
 973
 974 void Zoom(Browser* browser, content::PageZoom zoom) {
 975   ui_zoom::PageZoom::Zoom(browser->tab_strip_model()->GetActiveWebContents(),
 976                           zoom);
 977 }
 978
 979 void FocusToolbar(Browser* browser) {
 980   content::RecordAction(UserMetricsAction("FocusToolbar"));
 981   browser->window()->FocusToolbar();
 982 }
 983
 984 void FocusLocationBar(Browser* browser) {
 985   content::RecordAction(UserMetricsAction("FocusLocation"));
 986   browser->window()->SetFocusToLocationBar(true);
 987 }
 988
 989 void FocusSearch(Browser* browser) {
 990   // TODO(beng): replace this with FocusLocationBar
 991   content::RecordAction(UserMetricsAction("FocusSearch"));
 992   browser->window()->GetLocationBar()->FocusSearch();
 993 }
 994
 995 void FocusAppMenu(Browser* browser) {
 996   content::RecordAction(UserMetricsAction("FocusAppMenu"));
 997   browser->window()->FocusAppMenu();
 998 }
 999
1000 void FocusBookmarksToolbar(Browser* browser) {
1001   content::RecordAction(UserMetricsAction("FocusBookmarksToolbar"));
1002   browser->window()->FocusBookmarksToolbar();
1003 }
1004
1005 void FocusInfobars(Browser* browser) {
1006   content::RecordAction(UserMetricsAction("FocusInfobars"));
1007   browser->window()->FocusInfobars();
1008 }
1009
1010 void FocusNextPane(Browser* browser) {
1011   content::RecordAction(UserMetricsAction("FocusNextPane"));
1012   browser->window()->RotatePaneFocus(true);
1013 }
1014
1015 void FocusPreviousPane(Browser* browser) {
1016   content::RecordAction(UserMetricsAction("FocusPreviousPane"));
1017   browser->window()->RotatePaneFocus(false);
1018 }
1019
1020 void ToggleDevToolsWindow(Browser* browser, DevToolsToggleAction action) {
1021   if (action.type() == DevToolsToggleAction::kShowConsole)
1022     content::RecordAction(UserMetricsAction("DevTools_ToggleConsole"));
1023   else
1024     content::RecordAction(UserMetricsAction("DevTools_ToggleWindow"));
1025   DevToolsWindow::ToggleDevToolsWindow(browser, action);
1026 }
1027
1028 bool CanOpenTaskManager() {
1029 #if defined(ENABLE_TASK_MANAGER)
1030   return true;
1031 #else
1032   return false;
1033 #endif
1034 }
1035
1036 void OpenTaskManager(Browser* browser) {
1037 #if defined(ENABLE_TASK_MANAGER)
1038   content::RecordAction(UserMetricsAction("TaskManager"));
1039   chrome::ShowTaskManager(browser);
1040 #else
1041   NOTREACHED();
1042 #endif
1043 }
1044
1045 void OpenFeedbackDialog(Browser* browser) {
1046   content::RecordAction(UserMetricsAction("Feedback"));
1047   chrome::ShowFeedbackPage(browser, std::string(), std::string());
1048 }
1049
1050 void ToggleBookmarkBar(Browser* browser) {
1051   content::RecordAction(UserMetricsAction("ShowBookmarksBar"));
1052   ToggleBookmarkBarWhenVisible(browser->profile());
1053 }
1054
1055 void ShowAppMenu(Browser* browser) {
1056   // We record the user metric for this event in WrenchMenu::RunMenu.
1057   browser->window()->ShowAppMenu();
1058 }
1059
1060 void ShowAvatarMenu(Browser* browser) {
1061   browser->window()->ShowAvatarBubbleFromAvatarButton(
1062       BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT,
1063       signin::ManageAccountsParams());
1064 }
1065
1066 void ShowFastUserSwitcher(Browser* browser) {
1067   browser->window()->ShowAvatarBubbleFromAvatarButton(
1068       BrowserWindow::AVATAR_BUBBLE_MODE_FAST_USER_SWITCH,
1069       signin::ManageAccountsParams());
1070 }
1071
1072 void OpenUpdateChromeDialog(Browser* browser) {
1073   if (UpgradeDetector::GetInstance()->is_outdated_install()) {
1074     content::NotificationService::current()->Notify(
1075         chrome::NOTIFICATION_OUTDATED_INSTALL,
1076         content::NotificationService::AllSources(),
1077         content::NotificationService::NoDetails());
1078   } else if (UpgradeDetector::GetInstance()->is_outdated_install_no_au()) {
1079     content::NotificationService::current()->Notify(
1080         chrome::NOTIFICATION_OUTDATED_INSTALL_NO_AU,
1081         content::NotificationService::AllSources(),
1082         content::NotificationService::NoDetails());
1083   } else {
1084     content::RecordAction(UserMetricsAction("UpdateChrome"));
1085     browser->window()->ShowUpdateChromeDialog();
1086   }
1087 }
1088
1089 void ToggleSpeechInput(Browser* browser) {
1090   SearchTabHelper* search_tab_helper =
1091       SearchTabHelper::FromWebContents(
1092           browser->tab_strip_model()->GetActiveWebContents());
1093   // |search_tab_helper| can be null in unit tests.
1094   if (search_tab_helper)
1095     search_tab_helper->ToggleVoiceSearch();
1096 }
1097
1098 void DistillCurrentPage(Browser* browser) {
1099   DistillCurrentPageAndView(browser->tab_strip_model()->GetActiveWebContents());
1100 }
1101
1102 bool CanRequestTabletSite(WebContents* current_tab) {
1103   return current_tab &&
1104       current_tab->GetController().GetLastCommittedEntry() != NULL;
1105 }
1106
1107 bool IsRequestingTabletSite(Browser* browser) {
1108   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
1109   if (!current_tab)
1110     return false;
1111   content::NavigationEntry* entry =
1112       current_tab->GetController().GetLastCommittedEntry();
1113   if (!entry)
1114     return false;
1115   return entry->GetIsOverridingUserAgent();
1116 }
1117
1118 void ToggleRequestTabletSite(Browser* browser) {
1119   WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
1120   if (!current_tab)
1121     return;
1122   NavigationController& controller = current_tab->GetController();
1123   NavigationEntry* entry = controller.GetLastCommittedEntry();
1124   if (!entry)
1125     return;
1126   if (entry->GetIsOverridingUserAgent()) {
1127     entry->SetIsOverridingUserAgent(false);
1128   } else {
1129     entry->SetIsOverridingUserAgent(true);
1130     std::string product = version_info::GetProductNameAndVersionForUserAgent();
1131     current_tab->SetUserAgentOverride(content::BuildUserAgentFromOSAndProduct(
1132         kOsOverrideForTabletSite, product));
1133   }
1134   controller.ReloadOriginalRequestURL(true);
1135 }
1136
1137 void ToggleFullscreenMode(Browser* browser) {
1138   DCHECK(browser);
1139   browser->exclusive_access_manager()
1140       ->fullscreen_controller()
1141       ->ToggleBrowserFullscreenMode();
1142 }
1143
1144 void ClearCache(Browser* browser) {
1145   BrowsingDataRemover* remover =
1146       BrowsingDataRemover::CreateForUnboundedRange(browser->profile());
1147   remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
1148                   BrowsingDataHelper::UNPROTECTED_WEB);
1149   // BrowsingDataRemover takes care of deleting itself when done.
1150 }
1151
1152 bool IsDebuggerAttachedToCurrentTab(Browser* browser) {
1153   WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
1154   return contents ?
1155       content::DevToolsAgentHost::IsDebuggerAttached(contents) : false;
1156 }
1157
1158 void ViewSource(Browser* browser, WebContents* contents) {
1159   DCHECK(contents);
1160
1161   // Use the last committed entry, since the pending entry hasn't loaded yet and
1162   // won't be copied into the cloned tab.
1163   NavigationEntry* entry = contents->GetController().GetLastCommittedEntry();
1164   if (!entry)
1165     return;
1166
1167   ViewSource(browser, contents, entry->GetURL(), entry->GetPageState());
1168 }
1169
1170 void ViewSource(Browser* browser,
1171                 WebContents* contents,
1172                 const GURL& url,
1173                 const content::PageState& page_state) {
1174   content::RecordAction(UserMetricsAction("ViewSource"));
1175   DCHECK(contents);
1176
1177   WebContents* view_source_contents = contents->Clone();
1178   DCHECK(view_source_contents->GetController().CanPruneAllButLastCommitted());
1179   view_source_contents->GetController().PruneAllButLastCommitted();
1180   NavigationEntry* last_committed_entry =
1181       view_source_contents->GetController().GetLastCommittedEntry();
1182   if (!last_committed_entry)
1183     return;
1184
1185   GURL view_source_url =
1186       GURL(content::kViewSourceScheme + std::string(":") + url.spec());
1187   last_committed_entry->SetVirtualURL(view_source_url);
1188
1189   // Do not restore scroller position.
1190   last_committed_entry->SetPageState(page_state.RemoveScrollOffset());
1191
1192   // Do not restore title, derive it from the url.
1193   last_committed_entry->SetTitle(base::string16());
1194
1195   // Now show view-source entry.
1196   if (browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
1197     // If this is a tabbed browser, just create a duplicate tab inside the same
1198     // window next to the tab being duplicated.
1199     int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
1200     int add_types = TabStripModel::ADD_ACTIVE |
1201         TabStripModel::ADD_INHERIT_GROUP;
1202     browser->tab_strip_model()->InsertWebContentsAt(
1203         index + 1,
1204         view_source_contents,
1205         add_types);
1206   } else {
1207     Browser* b = new Browser(
1208         Browser::CreateParams(Browser::TYPE_TABBED, browser->profile(),
1209                               browser->host_desktop_type()));
1210
1211     // Preserve the size of the original window. The new window has already
1212     // been given an offset by the OS, so we shouldn't copy the old bounds.
1213     BrowserWindow* new_window = b->window();
1214     new_window->SetBounds(gfx::Rect(new_window->GetRestoredBounds().origin(),
1215                           browser->window()->GetRestoredBounds().size()));
1216
1217     // We need to show the browser now. Otherwise ContainerWin assumes the
1218     // WebContents is invisible and won't size it.
1219     b->window()->Show();
1220
1221     // The page transition below is only for the purpose of inserting the tab.
1222     b->tab_strip_model()->AddWebContents(view_source_contents, -1,
1223                                          ui::PAGE_TRANSITION_LINK,
1224                                          TabStripModel::ADD_ACTIVE);
1225   }
1226
1227   SessionService* session_service =
1228       SessionServiceFactory::GetForProfileIfExisting(browser->profile());
1229   if (session_service)
1230     session_service->TabRestored(view_source_contents, false);
1231 }
1232
1233 void ViewSelectedSource(Browser* browser) {
1234   ViewSource(browser, browser->tab_strip_model()->GetActiveWebContents());
1235 }
1236
1237 bool CanViewSource(const Browser* browser) {
1238   return !browser->is_devtools() &&
1239       browser->tab_strip_model()->GetActiveWebContents()->GetController().
1240           CanViewSource();
1241 }
1242
1243 #if defined(ENABLE_EXTENSIONS)
1244 void CreateApplicationShortcuts(Browser* browser) {
1245   content::RecordAction(UserMetricsAction("CreateShortcut"));
1246   extensions::TabHelper::FromWebContents(
1247       browser->tab_strip_model()->GetActiveWebContents())->
1248           CreateApplicationShortcuts();
1249 }
1250
1251 void CreateBookmarkAppFromCurrentWebContents(Browser* browser) {
1252   content::RecordAction(UserMetricsAction("CreateHostedApp"));
1253   extensions::TabHelper::FromWebContents(
1254       browser->tab_strip_model()->GetActiveWebContents())->
1255           CreateHostedAppFromWebContents();
1256 }
1257
1258 bool CanCreateApplicationShortcuts(const Browser* browser) {
1259   return extensions::TabHelper::FromWebContents(
1260       browser->tab_strip_model()->GetActiveWebContents())->
1261           CanCreateApplicationShortcuts();
1262 }
1263
1264 bool CanCreateBookmarkApp(const Browser* browser) {
1265   return extensions::TabHelper::FromWebContents(
1266              browser->tab_strip_model()->GetActiveWebContents())
1267       ->CanCreateBookmarkApp();
1268 }
1269
1270 void ConvertTabToAppWindow(Browser* browser,
1271                            content::WebContents* contents) {
1272   const GURL& url = contents->GetController().GetLastCommittedEntry()->GetURL();
1273   std::string app_name = web_app::GenerateApplicationNameFromURL(url);
1274
1275   int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
1276   if (index >= 0)
1277     browser->tab_strip_model()->DetachWebContentsAt(index);
1278
1279   Browser* app_browser = new Browser(
1280       Browser::CreateParams::CreateForApp(app_name,
1281                                           true /* trusted_source */,
1282                                           gfx::Rect(),
1283                                           browser->profile(),
1284                                           browser->host_desktop_type()));
1285   app_browser->tab_strip_model()->AppendWebContents(contents, true);
1286
1287   contents->GetMutableRendererPrefs()->can_accept_load_drops = false;
1288   contents->GetRenderViewHost()->SyncRendererPrefs();
1289   app_browser->window()->Show();
1290 }
1291 #endif  // defined(ENABLE_EXTENSIONS)
1292
1293 }  // namespace chrome