chrome/browser/ui/browser

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This source file includes following definitions.
CanBookmarkCurrentPageInternal
GetBookmarkOverrideCommand
BookmarkCurrentPageInternal
GetTabAndRevertIfNecessary
ReloadInternal
IsShowingWebContentsModalDialog
PrintPreviewShowing
IsCommandEnabled
SupportsCommand
ExecuteCommand
ExecuteCommandWithDisposition
UpdateCommandEnabled
AddCommandObserver
RemoveCommandObserver
GetContentRestrictions
NewEmptyWindow
OpenEmptyWindow
OpenWindowWithRestoredTabs
OpenURLOffTheRecord
CanGoBack
GoBack
CanGoForward
GoForward
NavigateToIndexWithDisposition
Reload
ReloadIgnoringCache
CanReload
Home
OpenCurrentURL
Stop
NewWindow
NewIncognitoWindow
CloseWindow
NewTab
CloseTab
RestoreTab
GetRestoreTabType
SelectNextTab
SelectPreviousTab
MoveTabNext
MoveTabPrevious
SelectNumberedTab
SelectLastTab
DuplicateTab
CanDuplicateTab
DuplicateTabAt
CanDuplicateTabAt
ConvertPopupToTabbedBrowser
Exit
BookmarkCurrentPage
BookmarkCurrentPageFromStar
CanBookmarkCurrentPage
BookmarkAllTabs
CanBookmarkAllTabs
Translate
TogglePagePinnedToStartScreen
SavePage
CanSavePage
ShowFindBar
ShowWebsiteSettings
Print
CanPrint
AdvancedPrint
CanAdvancedPrint
PrintToDestination
EmailPageLocation
CanEmailPageLocation
Cut
Copy
Paste
Find
FindNext
FindPrevious
FindInPage
Zoom
FocusToolbar
FocusLocationBar
FocusSearch
FocusAppMenu
FocusBookmarksToolbar
FocusInfobars
FocusNextPane
FocusPreviousPane
ToggleDevToolsWindow
CanOpenTaskManager
OpenTaskManager
OpenFeedbackDialog
ToggleBookmarkBar
ShowAppMenu
ShowAvatarMenu
OpenUpdateChromeDialog
ToggleSpeechInput
CanRequestTabletSite
IsRequestingTabletSite
ToggleRequestTabletSite
ToggleFullscreenMode
ClearCache
IsDebuggerAttachedToCurrentTab
ViewSource
ViewSource
ViewSelectedSource
CanViewSource
CreateApplicationShortcuts
CreateHostedAppFromCurrentWebContents
CanCreateApplicationShortcuts
ConvertTabToAppWindow
// Copyright 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "chrome/browser/ui/browser_commands.h"

#include "base/command_line.h"
#include "base/metrics/histogram.h"
#include "base/prefs/pref_service.h"
#include "base/strings/utf_string_conversions.h"
#include "chrome/app/chrome_command_ids.h"
#include "chrome/browser/bookmarks/bookmark_model.h"
#include "chrome/browser/bookmarks/bookmark_model_factory.h"
#include "chrome/browser/bookmarks/bookmark_utils.h"
#include "chrome/browser/browser_process.h"
#include "chrome/browser/browsing_data/browsing_data_helper.h"
#include "chrome/browser/browsing_data/browsing_data_remover.h"
#include "chrome/browser/chrome_notification_types.h"
#include "chrome/browser/chrome_page_zoom.h"
#include "chrome/browser/devtools/devtools_window.h"
#include "chrome/browser/extensions/api/commands/command_service.h"
#include "chrome/browser/extensions/extension_service.h"
#include "chrome/browser/extensions/tab_helper.h"
#include "chrome/browser/favicon/favicon_tab_helper.h"
#include "chrome/browser/google/google_util.h"
#include "chrome/browser/lifetime/application_lifetime.h"
#include "chrome/browser/platform_util.h"
#include "chrome/browser/prefs/incognito_mode_prefs.h"
#include "chrome/browser/profiles/profile.h"
#include "chrome/browser/rlz/rlz.h"
#include "chrome/browser/search/search.h"
#include "chrome/browser/sessions/session_service_factory.h"
#include "chrome/browser/sessions/tab_restore_service.h"
#include "chrome/browser/sessions/tab_restore_service_delegate.h"
#include "chrome/browser/sessions/tab_restore_service_factory.h"
#include "chrome/browser/translate/translate_tab_helper.h"
#include "chrome/browser/ui/accelerator_utils.h"
#include "chrome/browser/ui/bookmarks/bookmark_prompt_controller.h"
#include "chrome/browser/ui/bookmarks/bookmark_utils.h"
#include "chrome/browser/ui/browser.h"
#include "chrome/browser/ui/browser_command_controller.h"
#include "chrome/browser/ui/browser_dialogs.h"
#include "chrome/browser/ui/browser_instant_controller.h"
#include "chrome/browser/ui/browser_tab_restore_service_delegate.h"
#include "chrome/browser/ui/browser_tabstrip.h"
#include "chrome/browser/ui/browser_window.h"
#include "chrome/browser/ui/chrome_pages.h"
#include "chrome/browser/ui/find_bar/find_bar.h"
#include "chrome/browser/ui/find_bar/find_bar_controller.h"
#include "chrome/browser/ui/find_bar/find_tab_helper.h"
#include "chrome/browser/ui/fullscreen/fullscreen_controller.h"
#include "chrome/browser/ui/omnibox/location_bar.h"
#include "chrome/browser/ui/scoped_tabbed_browser_displayer.h"
#include "chrome/browser/ui/search/search_tab_helper.h"
#include "chrome/browser/ui/status_bubble.h"
#include "chrome/browser/ui/tab_contents/core_tab_helper.h"
#include "chrome/browser/ui/tabs/tab_strip_model.h"
#include "chrome/browser/ui/webui/ntp/core_app_launcher_handler.h"
#include "chrome/browser/upgrade_detector.h"
#include "chrome/browser/web_applications/web_app.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/chrome_version_info.h"
#include "chrome/common/content_restriction.h"
#include "chrome/common/extensions/manifest_handlers/app_launch_info.h"
#include "chrome/common/pref_names.h"
#include "components/web_modal/web_contents_modal_dialog_manager.h"
#include "content/public/browser/devtools_agent_host.h"
#include "content/public/browser/navigation_controller.h"
#include "content/public/browser/navigation_entry.h"
#include "content/public/browser/notification_service.h"
#include "content/public/browser/page_navigator.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/render_widget_host_view.h"
#include "content/public/browser/user_metrics.h"
#include "content/public/browser/web_contents.h"
#include "content/public/browser/web_contents_view.h"
#include "content/public/common/renderer_preferences.h"
#include "content/public/common/url_constants.h"
#include "content/public/common/url_utils.h"
#include "content/public/common/user_agent.h"
#include "extensions/browser/extension_system.h"
#include "net/base/escape.h"
#include "ui/events/keycodes/keyboard_codes.h"

#if defined(OS_WIN)
#include "chrome/browser/ui/metro_pin_tab_helper_win.h"
#include "win8/util/win8_util.h"
#endif

#if defined(ENABLE_PRINTING)
#if defined(ENABLE_FULL_PRINTING)
#include "chrome/browser/printing/print_preview_dialog_controller.h"
#include "chrome/browser/printing/print_view_manager.h"
#else
#include "chrome/browser/printing/print_view_manager_basic.h"
#endif  // defined(ENABLE_FULL_PRINTING)
#endif  // defined(ENABLE_PRINTING)

namespace {
const char kOsOverrideForTabletSite[] = "Linux; Android 4.0.3";
}

using base::UserMetricsAction;
using content::NavigationController;
using content::NavigationEntry;
using content::OpenURLParams;
using content::Referrer;
using content::SSLStatus;
using content::WebContents;
using web_modal::WebContentsModalDialogManager;

namespace chrome {
namespace {

bool CanBookmarkCurrentPageInternal(const Browser* browser,
                                    bool check_remove_bookmark_ui) {
  BookmarkModel* model =
      BookmarkModelFactory::GetForProfile(browser->profile());
  return browser_defaults::bookmarks_enabled &&
      browser->profile()->GetPrefs()->GetBoolean(
          prefs::kEditBookmarksEnabled) &&
      model && model->loaded() && browser->is_type_tabbed() &&
      (!check_remove_bookmark_ui ||
           !chrome::ShouldRemoveBookmarkThisPageUI(browser->profile()));
}

bool GetBookmarkOverrideCommand(
    Profile* profile,
    const extensions::Extension** extension,
    extensions::Command* command,
    extensions::CommandService::ExtensionCommandType* command_type) {
  DCHECK(extension);
  DCHECK(command);
  DCHECK(command_type);

  ui::Accelerator bookmark_page_accelerator =
      chrome::GetPrimaryChromeAcceleratorForCommandId(IDC_BOOKMARK_PAGE);
  if (bookmark_page_accelerator.key_code() == ui::VKEY_UNKNOWN)
    return false;

  extensions::CommandService* command_service =
      extensions::CommandService::Get(profile);
  ExtensionService* extension_service =
      extensions::ExtensionSystem::Get(profile)->extension_service();
  // Extension service may be NULL during test execution.
  if (!extension_service)
    return false;
  const extensions::ExtensionSet* extension_set =
      extension_service->extensions();
  for (extensions::ExtensionSet::const_iterator i = extension_set->begin();
       i != extension_set->end(); ++i) {
    extensions::Command prospective_command;
    extensions::CommandService::ExtensionCommandType prospective_command_type;
    if (command_service->GetBoundExtensionCommand((*i)->id(),
                                                  bookmark_page_accelerator,
                                                  &prospective_command,
                                                  &prospective_command_type)) {
      *extension = i->get();
      *command = prospective_command;
      *command_type = prospective_command_type;
      return true;
    }
  }

  return false;
}

void BookmarkCurrentPageInternal(Browser* browser, bool from_star) {
  content::RecordAction(UserMetricsAction("Star"));

  BookmarkModel* model =
      BookmarkModelFactory::GetForProfile(browser->profile());
  if (!model || !model->loaded())
    return;  // Ignore requests until bookmarks are loaded.

  GURL url;
  base::string16 title;
  WebContents* web_contents =
      browser->tab_strip_model()->GetActiveWebContents();
  GetURLAndTitleToBookmark(web_contents, &url, &title);
  bool was_bookmarked = model->IsBookmarked(url);
  if (!was_bookmarked && web_contents->GetBrowserContext()->IsOffTheRecord()) {
    // If we're incognito the favicon may not have been saved. Save it now
    // so that bookmarks have an icon for the page.
    FaviconTabHelper::FromWebContents(web_contents)->SaveFavicon();
  }
  bookmark_utils::AddIfNotBookmarked(model, url, title);
  if (from_star && !was_bookmarked)
    BookmarkPromptController::AddedBookmark(browser, url);
  // Make sure the model actually added a bookmark before showing the star. A
  // bookmark isn't created if the url is invalid.
  if (browser->window()->IsActive() && model->IsBookmarked(url)) {
    // Only show the bubble if the window is active, otherwise we may get into
    // weird situations where the bubble is deleted as soon as it is shown.
    browser->window()->ShowBookmarkBubble(url, was_bookmarked);
  }
}

// Based on |disposition|, creates a new tab as necessary, and returns the
// appropriate tab to navigate.  If that tab is the current tab, reverts the
// location bar contents, since all browser-UI-triggered navigations should
// revert any omnibox edits in the current tab.
WebContents* GetTabAndRevertIfNecessary(Browser* browser,
                                        WindowOpenDisposition disposition) {
  WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
  switch (disposition) {
    case NEW_FOREGROUND_TAB:
    case NEW_BACKGROUND_TAB: {
      WebContents* new_tab = current_tab->Clone();
      browser->tab_strip_model()->AddWebContents(
          new_tab, -1, content::PAGE_TRANSITION_LINK,
          (disposition == NEW_FOREGROUND_TAB) ?
              TabStripModel::ADD_ACTIVE : TabStripModel::ADD_NONE);
      return new_tab;
    }
    case NEW_WINDOW: {
      WebContents* new_tab = current_tab->Clone();
      Browser* new_browser = new Browser(Browser::CreateParams(
          browser->profile(), browser->host_desktop_type()));
      new_browser->tab_strip_model()->AddWebContents(
          new_tab, -1, content::PAGE_TRANSITION_LINK,
          TabStripModel::ADD_ACTIVE);
      new_browser->window()->Show();
      return new_tab;
    }
    default:
      browser->window()->GetLocationBar()->Revert();
      return current_tab;
  }
}

void ReloadInternal(Browser* browser,
                    WindowOpenDisposition disposition,
                    bool ignore_cache) {
  // As this is caused by a user action, give the focus to the page.
  //
  // Also notify RenderViewHostDelegate of the user gesture; this is
  // normally done in Browser::Navigate, but a reload bypasses Navigate.
  WebContents* new_tab = GetTabAndRevertIfNecessary(browser, disposition);
  new_tab->UserGestureDone();
  if (!new_tab->FocusLocationBarByDefault())
    new_tab->GetView()->Focus();
  if (ignore_cache)
    new_tab->GetController().ReloadIgnoringCache(true);
  else
    new_tab->GetController().Reload(true);
}

bool IsShowingWebContentsModalDialog(const Browser* browser) {
  WebContents* web_contents =
      browser->tab_strip_model()->GetActiveWebContents();
  if (!web_contents)
    return false;

  WebContentsModalDialogManager* web_contents_modal_dialog_manager =
      WebContentsModalDialogManager::FromWebContents(web_contents);
  return web_contents_modal_dialog_manager->IsDialogActive();
}

bool PrintPreviewShowing(const Browser* browser) {
#if defined(ENABLE_FULL_PRINTING)
  WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
  printing::PrintPreviewDialogController* controller =
      printing::PrintPreviewDialogController::GetInstance();
  return controller && (controller->GetPrintPreviewForContents(contents) ||
                        controller->is_creating_print_preview_dialog());
#else
  return false;
#endif
}

}  // namespace

bool IsCommandEnabled(Browser* browser, int command) {
  return browser->command_controller()->command_updater()->IsCommandEnabled(
      command);
}

bool SupportsCommand(Browser* browser, int command) {
  return browser->command_controller()->command_updater()->SupportsCommand(
      command);
}

bool ExecuteCommand(Browser* browser, int command) {
  return browser->command_controller()->command_updater()->ExecuteCommand(
      command);
}

bool ExecuteCommandWithDisposition(Browser* browser,
                                   int command,
                                   WindowOpenDisposition disposition) {
  return browser->command_controller()->command_updater()->
      ExecuteCommandWithDisposition(command, disposition);
}

void UpdateCommandEnabled(Browser* browser, int command, bool enabled) {
  browser->command_controller()->command_updater()->UpdateCommandEnabled(
      command, enabled);
}

void AddCommandObserver(Browser* browser,
                        int command,
                        CommandObserver* observer) {
  browser->command_controller()->command_updater()->AddCommandObserver(
      command, observer);
}

void RemoveCommandObserver(Browser* browser,
                           int command,
                           CommandObserver* observer) {
  browser->command_controller()->command_updater()->RemoveCommandObserver(
      command, observer);
}

int GetContentRestrictions(const Browser* browser) {
  int content_restrictions = 0;
  WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
  if (current_tab) {
    CoreTabHelper* core_tab_helper =
        CoreTabHelper::FromWebContents(current_tab);
    content_restrictions = core_tab_helper->content_restrictions();
    NavigationEntry* active_entry =
        current_tab->GetController().GetActiveEntry();
    // See comment in UpdateCommandsForTabState about why we call url().
    if (!content::IsSavableURL(
            active_entry ? active_entry->GetURL() : GURL()) ||
        current_tab->ShowingInterstitialPage())
      content_restrictions |= CONTENT_RESTRICTION_SAVE;
    if (current_tab->ShowingInterstitialPage())
      content_restrictions |= CONTENT_RESTRICTION_PRINT;
  }
  return content_restrictions;
}

void NewEmptyWindow(Profile* profile, HostDesktopType desktop_type) {
  bool incognito = profile->IsOffTheRecord();
  PrefService* prefs = profile->GetPrefs();
  if (incognito) {
    if (IncognitoModePrefs::GetAvailability(prefs) ==
          IncognitoModePrefs::DISABLED) {
      incognito = false;
    }
  } else {
    if (browser_defaults::kAlwaysOpenIncognitoWindow &&
        IncognitoModePrefs::ShouldLaunchIncognito(
            *CommandLine::ForCurrentProcess(), prefs)) {
      incognito = true;
    }
  }

  if (incognito) {
    content::RecordAction(UserMetricsAction("NewIncognitoWindow"));
    OpenEmptyWindow(profile->GetOffTheRecordProfile(), desktop_type);
  } else {
    content::RecordAction(UserMetricsAction("NewWindow"));
    SessionService* session_service =
        SessionServiceFactory::GetForProfileForSessionRestore(
            profile->GetOriginalProfile());
    if (!session_service ||
        !session_service->RestoreIfNecessary(std::vector<GURL>())) {
      OpenEmptyWindow(profile->GetOriginalProfile(), desktop_type);
    }
  }
}

Browser* OpenEmptyWindow(Profile* profile, HostDesktopType desktop_type) {
  Browser* browser = new Browser(
      Browser::CreateParams(Browser::TYPE_TABBED, profile, desktop_type));
  AddTabAt(browser, GURL(), -1, true);
  browser->window()->Show();
  return browser;
}

void OpenWindowWithRestoredTabs(Profile* profile,
                                HostDesktopType host_desktop_type) {
  TabRestoreService* service = TabRestoreServiceFactory::GetForProfile(profile);
  if (service)
    service->RestoreMostRecentEntry(NULL, host_desktop_type);
}

void OpenURLOffTheRecord(Profile* profile,
                         const GURL& url,
                         chrome::HostDesktopType desktop_type) {
  ScopedTabbedBrowserDisplayer displayer(profile->GetOffTheRecordProfile(),
                                         desktop_type);
  AddSelectedTabWithURL(displayer.browser(), url,
      content::PAGE_TRANSITION_LINK);
}

bool CanGoBack(const Browser* browser) {
  return browser->tab_strip_model()->GetActiveWebContents()->
      GetController().CanGoBack();
}

void GoBack(Browser* browser, WindowOpenDisposition disposition) {
  content::RecordAction(UserMetricsAction("Back"));

  if (CanGoBack(browser)) {
    WebContents* current_tab =
        browser->tab_strip_model()->GetActiveWebContents();
    WebContents* new_tab = GetTabAndRevertIfNecessary(browser, disposition);
    // If we are on an interstitial page and clone the tab, it won't be copied
    // to the new tab, so we don't need to go back.
    if ((new_tab == current_tab) || !current_tab->ShowingInterstitialPage())
      new_tab->GetController().GoBack();
  }
}

bool CanGoForward(const Browser* browser) {
  return browser->tab_strip_model()->GetActiveWebContents()->
      GetController().CanGoForward();
}

void GoForward(Browser* browser, WindowOpenDisposition disposition) {
  content::RecordAction(UserMetricsAction("Forward"));
  if (CanGoForward(browser)) {
    GetTabAndRevertIfNecessary(browser, disposition)->
        GetController().GoForward();
  }
}

bool NavigateToIndexWithDisposition(Browser* browser,
                                    int index,
                                    WindowOpenDisposition disposition) {
  NavigationController* controller =
      &GetTabAndRevertIfNecessary(browser, disposition)->GetController();
  if (index < 0 || index >= controller->GetEntryCount())
    return false;
  controller->GoToIndex(index);
  return true;
}

void Reload(Browser* browser, WindowOpenDisposition disposition) {
  content::RecordAction(UserMetricsAction("Reload"));
  ReloadInternal(browser, disposition, false);
}

void ReloadIgnoringCache(Browser* browser, WindowOpenDisposition disposition) {
  content::RecordAction(UserMetricsAction("ReloadIgnoringCache"));
  ReloadInternal(browser, disposition, true);
}

bool CanReload(const Browser* browser) {
  return !browser->is_devtools();
}

void Home(Browser* browser, WindowOpenDisposition disposition) {
  content::RecordAction(UserMetricsAction("Home"));

  std::string extra_headers;
#if defined(ENABLE_RLZ)
  // If the home page is a Google home page, add the RLZ header to the request.
  PrefService* pref_service = browser->profile()->GetPrefs();
  if (pref_service) {
    if (google_util::IsGoogleHomePageUrl(
        GURL(pref_service->GetString(prefs::kHomePage)))) {
      extra_headers = RLZTracker::GetAccessPointHttpHeader(
          RLZTracker::CHROME_HOME_PAGE);
    }
  }
#endif

  GURL url = browser->profile()->GetHomePage();

  // Streamlined hosted apps should return to their launch page when the home
  // button is pressed.
  if (browser->is_app()) {
    const ExtensionService* service = browser->profile()->GetExtensionService();
    if (!service)
      return;

    const extensions::Extension* extension =
        service->GetInstalledExtension(
            web_app::GetExtensionIdFromApplicationName(browser->app_name()));
    if (!extension)
      return;

    url = extensions::AppLaunchInfo::GetLaunchWebURL(extension);
  }

  OpenURLParams params(
      url, Referrer(), disposition,
      content::PageTransitionFromInt(
          content::PAGE_TRANSITION_AUTO_BOOKMARK |
          content::PAGE_TRANSITION_HOME_PAGE),
      false);
  params.extra_headers = extra_headers;
  browser->OpenURL(params);
}

void OpenCurrentURL(Browser* browser) {
  content::RecordAction(UserMetricsAction("LoadURL"));
  LocationBar* location_bar = browser->window()->GetLocationBar();
  if (!location_bar)
    return;

  GURL url(location_bar->GetDestinationURL());

  content::PageTransition page_transition = location_bar->GetPageTransition();
  content::PageTransition page_transition_without_qualifier(
      PageTransitionStripQualifier(page_transition));
  WindowOpenDisposition open_disposition =
      location_bar->GetWindowOpenDisposition();
  // A PAGE_TRANSITION_TYPED means the user has typed a URL. We do not want to
  // open URLs with instant_controller since in some cases it disregards it
  // and performs a search instead. For example, when using CTRL-Enter, the
  // location_bar is aware of the URL but instant is not.
  // Instant should also not handle PAGE_TRANSITION_RELOAD because its knowledge
  // of the omnibox text may be stale if the user focuses in the omnibox and
  // presses enter without typing anything.
  if (page_transition_without_qualifier != content::PAGE_TRANSITION_TYPED &&
      page_transition_without_qualifier != content::PAGE_TRANSITION_RELOAD &&
      browser->instant_controller() &&
      browser->instant_controller()->OpenInstant(open_disposition, url))
    return;

  NavigateParams params(browser, url, page_transition);
  params.disposition = open_disposition;
  // Use ADD_INHERIT_OPENER so that all pages opened by the omnibox at least
  // inherit the opener. In some cases the tabstrip will determine the group
  // should be inherited, in which case the group is inherited instead of the
  // opener.
  params.tabstrip_add_types =
      TabStripModel::ADD_FORCE_INDEX | TabStripModel::ADD_INHERIT_OPENER;
  Navigate(&params);

  DCHECK(browser->profile()->GetExtensionService());
  const extensions::Extension* extension =
      browser->profile()->GetExtensionService()->GetInstalledApp(url);
  if (extension) {
    CoreAppLauncherHandler::RecordAppLaunchType(
        extension_misc::APP_LAUNCH_OMNIBOX_LOCATION,
        extension->GetType());
  }
}

void Stop(Browser* browser) {
  content::RecordAction(UserMetricsAction("Stop"));
  browser->tab_strip_model()->GetActiveWebContents()->Stop();
}

#if !defined(OS_WIN)
void NewWindow(Browser* browser) {
  NewEmptyWindow(browser->profile()->GetOriginalProfile(),
                 browser->host_desktop_type());
}

void NewIncognitoWindow(Browser* browser) {
  NewEmptyWindow(browser->profile()->GetOffTheRecordProfile(),
                 browser->host_desktop_type());
}
#endif  // OS_WIN

void CloseWindow(Browser* browser) {
  content::RecordAction(UserMetricsAction("CloseWindow"));
  browser->window()->Close();
}

void NewTab(Browser* browser) {
  content::RecordAction(UserMetricsAction("NewTab"));
  // TODO(asvitkine): This is invoked programmatically from several places.
  // Audit the code and change it so that the histogram only gets collected for
  // user-initiated commands.
  UMA_HISTOGRAM_ENUMERATION("Tab.NewTab", TabStripModel::NEW_TAB_COMMAND,
                            TabStripModel::NEW_TAB_ENUM_COUNT);

  if (browser->is_type_tabbed()) {
    AddTabAt(browser, GURL(), -1, true);
    browser->tab_strip_model()->GetActiveWebContents()->GetView()->
        RestoreFocus();
  } else {
    ScopedTabbedBrowserDisplayer displayer(browser->profile(),
                                           browser->host_desktop_type());
    Browser* b = displayer.browser();
    AddTabAt(b, GURL(), -1, true);
    b->window()->Show();
    // The call to AddBlankTabAt above did not set the focus to the tab as its
    // window was not active, so we have to do it explicitly.
    // See http://crbug.com/6380.
    b->tab_strip_model()->GetActiveWebContents()->GetView()->RestoreFocus();
  }
}

void CloseTab(Browser* browser) {
  content::RecordAction(UserMetricsAction("CloseTab_Accelerator"));
  browser->tab_strip_model()->CloseSelectedTabs();
}

void RestoreTab(Browser* browser) {
  content::RecordAction(UserMetricsAction("RestoreTab"));
  TabRestoreService* service =
      TabRestoreServiceFactory::GetForProfile(browser->profile());
  if (service)
    service->RestoreMostRecentEntry(browser->tab_restore_service_delegate(),
                                    browser->host_desktop_type());
}

TabStripModelDelegate::RestoreTabType GetRestoreTabType(
    const Browser* browser) {
  TabRestoreService* service =
      TabRestoreServiceFactory::GetForProfile(browser->profile());
  if (!service || service->entries().empty())
    return TabStripModelDelegate::RESTORE_NONE;
  if (service->entries().front()->type == TabRestoreService::WINDOW)
    return TabStripModelDelegate::RESTORE_WINDOW;
  return TabStripModelDelegate::RESTORE_TAB;
}

void SelectNextTab(Browser* browser) {
  content::RecordAction(UserMetricsAction("SelectNextTab"));
  browser->tab_strip_model()->SelectNextTab();
}

void SelectPreviousTab(Browser* browser) {
  content::RecordAction(UserMetricsAction("SelectPrevTab"));
  browser->tab_strip_model()->SelectPreviousTab();
}

void MoveTabNext(Browser* browser) {
  content::RecordAction(UserMetricsAction("MoveTabNext"));
  browser->tab_strip_model()->MoveTabNext();
}

void MoveTabPrevious(Browser* browser) {
  content::RecordAction(UserMetricsAction("MoveTabPrevious"));
  browser->tab_strip_model()->MoveTabPrevious();
}

void SelectNumberedTab(Browser* browser, int index) {
  if (index < browser->tab_strip_model()->count()) {
    content::RecordAction(UserMetricsAction("SelectNumberedTab"));
    browser->tab_strip_model()->ActivateTabAt(index, true);
  }
}

void SelectLastTab(Browser* browser) {
  content::RecordAction(UserMetricsAction("SelectLastTab"));
  browser->tab_strip_model()->SelectLastTab();
}

void DuplicateTab(Browser* browser) {
  content::RecordAction(UserMetricsAction("Duplicate"));
  DuplicateTabAt(browser, browser->tab_strip_model()->active_index());
}

bool CanDuplicateTab(const Browser* browser) {
  WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
  return contents && contents->GetController().GetLastCommittedEntry();
}

WebContents* DuplicateTabAt(Browser* browser, int index) {
  WebContents* contents = browser->tab_strip_model()->GetWebContentsAt(index);
  CHECK(contents);
  WebContents* contents_dupe = contents->Clone();

  bool pinned = false;
  if (browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
    // If this is a tabbed browser, just create a duplicate tab inside the same
    // window next to the tab being duplicated.
    int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
    pinned = browser->tab_strip_model()->IsTabPinned(index);
    int add_types = TabStripModel::ADD_ACTIVE |
        TabStripModel::ADD_INHERIT_GROUP |
        (pinned ? TabStripModel::ADD_PINNED : 0);
    browser->tab_strip_model()->InsertWebContentsAt(
        index + 1, contents_dupe, add_types);
  } else {
    Browser* new_browser = NULL;
    if (browser->is_app() &&
        !browser->is_type_popup()) {
      new_browser = new Browser(
          Browser::CreateParams::CreateForApp(browser->type(),
                                              browser->app_name(),
                                              gfx::Rect(),
                                              browser->profile(),
                                              browser->host_desktop_type()));
    } else {
      new_browser = new Browser(
          Browser::CreateParams(browser->type(), browser->profile(),
                                browser->host_desktop_type()));
    }
    // Preserve the size of the original window. The new window has already
    // been given an offset by the OS, so we shouldn't copy the old bounds.
    BrowserWindow* new_window = new_browser->window();
    new_window->SetBounds(gfx::Rect(new_window->GetRestoredBounds().origin(),
                          browser->window()->GetRestoredBounds().size()));

    // We need to show the browser now.  Otherwise ContainerWin assumes the
    // WebContents is invisible and won't size it.
    new_browser->window()->Show();

    // The page transition below is only for the purpose of inserting the tab.
    new_browser->tab_strip_model()->AddWebContents(
        contents_dupe, -1,
        content::PAGE_TRANSITION_LINK,
        TabStripModel::ADD_ACTIVE);
  }

  SessionService* session_service =
      SessionServiceFactory::GetForProfileIfExisting(browser->profile());
  if (session_service)
    session_service->TabRestored(contents_dupe, pinned);
  return contents_dupe;
}

bool CanDuplicateTabAt(Browser* browser, int index) {
  content::NavigationController& nc =
      browser->tab_strip_model()->GetWebContentsAt(index)->GetController();
  return nc.GetWebContents() && nc.GetLastCommittedEntry();
}

void ConvertPopupToTabbedBrowser(Browser* browser) {
  content::RecordAction(UserMetricsAction("ShowAsTab"));
  TabStripModel* tab_strip = browser->tab_strip_model();
  WebContents* contents =
      tab_strip->DetachWebContentsAt(tab_strip->active_index());
  Browser* b = new Browser(Browser::CreateParams(browser->profile(),
                                                 browser->host_desktop_type()));
  b->tab_strip_model()->AppendWebContents(contents, true);
  b->window()->Show();
}

void Exit() {
  content::RecordAction(UserMetricsAction("Exit"));
  chrome::AttemptUserExit();
}

void BookmarkCurrentPage(Browser* browser) {
  DCHECK(!chrome::ShouldRemoveBookmarkThisPageUI(browser->profile()));

  const extensions::Extension* extension = NULL;
  extensions::Command command;
  extensions::CommandService::ExtensionCommandType command_type;
  if (GetBookmarkOverrideCommand(browser->profile(),
                                 &extension,
                                 &command,
                                 &command_type)) {
    switch (command_type) {
      case extensions::CommandService::NAMED:
        browser->window()->ExecuteExtensionCommand(extension, command);
        return;

      case extensions::CommandService::BROWSER_ACTION:
        // BookmarkCurrentPage is called through a user gesture, so it is safe
        // to call ShowBrowserActionPopup.
        browser->window()->ShowBrowserActionPopup(extension);
        return;

      case extensions::CommandService::PAGE_ACTION:
        browser->window()->ShowPageActionPopup(extension);
        return;
    };
  }

  BookmarkCurrentPageInternal(browser, false);
}

void BookmarkCurrentPageFromStar(Browser* browser) {
  BookmarkCurrentPageInternal(browser, true);
}

bool CanBookmarkCurrentPage(const Browser* browser) {
  return CanBookmarkCurrentPageInternal(browser, true);
}

void BookmarkAllTabs(Browser* browser) {
  chrome::ShowBookmarkAllTabsDialog(browser);
}

bool CanBookmarkAllTabs(const Browser* browser) {
  return browser->tab_strip_model()->count() > 1 &&
             !chrome::ShouldRemoveBookmarkOpenPagesUI(browser->profile()) &&
             CanBookmarkCurrentPageInternal(browser, false);
}

void Translate(Browser* browser) {
  if (!browser->window()->IsActive())
    return;

  WebContents* web_contents =
      browser->tab_strip_model()->GetActiveWebContents();
  TranslateTabHelper* translate_tab_helper =
      TranslateTabHelper::FromWebContents(web_contents);

  TranslateTabHelper::TranslateStep step = TranslateTabHelper::BEFORE_TRANSLATE;
  if (translate_tab_helper) {
    if (translate_tab_helper->GetLanguageState().translation_pending())
      step = TranslateTabHelper::TRANSLATING;
    else if (translate_tab_helper->GetLanguageState().IsPageTranslated())
      step = TranslateTabHelper::AFTER_TRANSLATE;
  }
  browser->window()->ShowTranslateBubble(
      web_contents, step, TranslateErrors::NONE);
}

void TogglePagePinnedToStartScreen(Browser* browser) {
#if defined(OS_WIN)
  MetroPinTabHelper::FromWebContents(
      browser->tab_strip_model()->GetActiveWebContents())->
          TogglePinnedToStartScreen();
#endif
}

void SavePage(Browser* browser) {
  content::RecordAction(UserMetricsAction("SavePage"));
  WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
  if (current_tab && current_tab->GetContentsMimeType() == "application/pdf")
    content::RecordAction(UserMetricsAction("PDF.SavePage"));
  current_tab->OnSavePage();
}

bool CanSavePage(const Browser* browser) {
  // LocalState can be NULL in tests.
  if (g_browser_process->local_state() &&
      !g_browser_process->local_state()->GetBoolean(
      prefs::kAllowFileSelectionDialogs)) {
    return false;
  }
  return !browser->is_devtools() &&
      !(GetContentRestrictions(browser) & CONTENT_RESTRICTION_SAVE);
}

void ShowFindBar(Browser* browser) {
  browser->GetFindBarController()->Show();
}

void ShowWebsiteSettings(Browser* browser,
                         content::WebContents* web_contents,
                         const GURL& url,
                         const SSLStatus& ssl) {
  browser->window()->ShowWebsiteSettings(
      Profile::FromBrowserContext(web_contents->GetBrowserContext()),
      web_contents, url, ssl);
}


void Print(Browser* browser) {
#if defined(ENABLE_PRINTING)
  WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
#if defined(ENABLE_FULL_PRINTING)
  printing::PrintViewManager* print_view_manager =
      printing::PrintViewManager::FromWebContents(contents);
  if (browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintPreviewDisabled))
    print_view_manager->PrintNow();
  else
    print_view_manager->PrintPreviewNow(false);
#else
  printing::PrintViewManagerBasic* print_view_manager =
      printing::PrintViewManagerBasic::FromWebContents(contents);
  print_view_manager->PrintNow();
#endif  // defined(ENABLE_FULL_PRINTING)
#endif  // defined(ENABLE_PRINTING)
}

bool CanPrint(const Browser* browser) {
  // Do not print when printing is disabled via pref or policy.
  // Do not print when a constrained window is showing. It's confusing.
  return browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintingEnabled) &&
      !(IsShowingWebContentsModalDialog(browser) ||
      GetContentRestrictions(browser) & CONTENT_RESTRICTION_PRINT);
}

void AdvancedPrint(Browser* browser) {
#if defined(ENABLE_FULL_PRINTING)
  printing::PrintViewManager* print_view_manager =
      printing::PrintViewManager::FromWebContents(
          browser->tab_strip_model()->GetActiveWebContents());
  print_view_manager->AdvancedPrintNow();
#endif
}

bool CanAdvancedPrint(const Browser* browser) {
  // If printing is not disabled via pref or policy, it is always possible to
  // advanced print when the print preview is visible.  The exception to this
  // is under Win8 ash, since showing the advanced print dialog will open it
  // modally on the Desktop and hang the browser.  We can remove this check
  // once we integrate with the system print charm.
#if defined(OS_WIN)
  if (chrome::GetActiveDesktop() == chrome::HOST_DESKTOP_TYPE_ASH)
    return false;
#endif

  return browser->profile()->GetPrefs()->GetBoolean(prefs::kPrintingEnabled) &&
      (PrintPreviewShowing(browser) || CanPrint(browser));
}

void PrintToDestination(Browser* browser) {
#if defined(ENABLE_FULL_PRINTING)
  printing::PrintViewManager* print_view_manager =
      printing::PrintViewManager::FromWebContents(
          browser->tab_strip_model()->GetActiveWebContents());
  print_view_manager->PrintToDestination();
#endif
}

void EmailPageLocation(Browser* browser) {
  content::RecordAction(UserMetricsAction("EmailPageLocation"));
  WebContents* wc = browser->tab_strip_model()->GetActiveWebContents();
  DCHECK(wc);

  std::string title = net::EscapeQueryParamValue(
      base::UTF16ToUTF8(wc->GetTitle()), false);
  std::string page_url = net::EscapeQueryParamValue(wc->GetURL().spec(), false);
  std::string mailto = std::string("mailto:?subject=Fwd:%20") +
      title + "&body=%0A%0A" + page_url;
  platform_util::OpenExternal(browser->profile(), GURL(mailto));
}

bool CanEmailPageLocation(const Browser* browser) {
  return browser->toolbar_model()->ShouldDisplayURL() &&
      browser->tab_strip_model()->GetActiveWebContents()->GetURL().is_valid();
}

void Cut(Browser* browser) {
  content::RecordAction(UserMetricsAction("Cut"));
  browser->window()->Cut();
}

void Copy(Browser* browser) {
  content::RecordAction(UserMetricsAction("Copy"));
  browser->window()->Copy();
}

void Paste(Browser* browser) {
  content::RecordAction(UserMetricsAction("Paste"));
  browser->window()->Paste();
}

void Find(Browser* browser) {
  content::RecordAction(UserMetricsAction("Find"));
  FindInPage(browser, false, false);
}

void FindNext(Browser* browser) {
  content::RecordAction(UserMetricsAction("FindNext"));
  FindInPage(browser, true, true);
}

void FindPrevious(Browser* browser) {
  content::RecordAction(UserMetricsAction("FindPrevious"));
  FindInPage(browser, true, false);
}

void FindInPage(Browser* browser, bool find_next, bool forward_direction) {
  ShowFindBar(browser);
  if (find_next) {
    base::string16 find_text;
    FindTabHelper* find_helper = FindTabHelper::FromWebContents(
        browser->tab_strip_model()->GetActiveWebContents());
#if defined(OS_MACOSX)
    // We always want to search for the current contents of the find bar on
    // OS X. For regular profile it's always the current find pboard. For
    // Incognito window it's the newest value of the find pboard content and
    // user-typed text.
    FindBar* find_bar = browser->GetFindBarController()->find_bar();
    find_text = find_bar->GetFindText();
#endif
    find_helper->StartFinding(find_text, forward_direction, false);
  }
}

void Zoom(Browser* browser, content::PageZoom zoom) {
  chrome_page_zoom::Zoom(browser->tab_strip_model()->GetActiveWebContents(),
                         zoom);
}

void FocusToolbar(Browser* browser) {
  content::RecordAction(UserMetricsAction("FocusToolbar"));
  browser->window()->FocusToolbar();
}

void FocusLocationBar(Browser* browser) {
  content::RecordAction(UserMetricsAction("FocusLocation"));
  browser->window()->SetFocusToLocationBar(true);
}

void FocusSearch(Browser* browser) {
  // TODO(beng): replace this with FocusLocationBar
  content::RecordAction(UserMetricsAction("FocusSearch"));
  browser->window()->GetLocationBar()->FocusSearch();
}

void FocusAppMenu(Browser* browser) {
  content::RecordAction(UserMetricsAction("FocusAppMenu"));
  browser->window()->FocusAppMenu();
}

void FocusBookmarksToolbar(Browser* browser) {
  content::RecordAction(UserMetricsAction("FocusBookmarksToolbar"));
  browser->window()->FocusBookmarksToolbar();
}

void FocusInfobars(Browser* browser) {
  content::RecordAction(UserMetricsAction("FocusInfobars"));
  browser->window()->FocusInfobars();
}

void FocusNextPane(Browser* browser) {
  content::RecordAction(UserMetricsAction("FocusNextPane"));
  browser->window()->RotatePaneFocus(true);
}

void FocusPreviousPane(Browser* browser) {
  content::RecordAction(UserMetricsAction("FocusPreviousPane"));
  browser->window()->RotatePaneFocus(false);
}

void ToggleDevToolsWindow(Browser* browser, DevToolsToggleAction action) {
  if (action.type() == DevToolsToggleAction::kShowConsole)
    content::RecordAction(UserMetricsAction("DevTools_ToggleConsole"));
  else
    content::RecordAction(UserMetricsAction("DevTools_ToggleWindow"));
  DevToolsWindow::ToggleDevToolsWindow(browser, action);
}

bool CanOpenTaskManager() {
#if defined(ENABLE_TASK_MANAGER)
#if defined(OS_WIN)
  // In metro we can't display the task manager, as it is a native window.
  return !win8::IsSingleWindowMetroMode();
#else
  return true;
#endif
#else
  return false;
#endif
}

void OpenTaskManager(Browser* browser) {
#if defined(ENABLE_TASK_MANAGER)
  content::RecordAction(UserMetricsAction("TaskManager"));
  chrome::ShowTaskManager(browser);
#else
  NOTREACHED();
#endif
}

void OpenFeedbackDialog(Browser* browser) {
  content::RecordAction(UserMetricsAction("Feedback"));
  chrome::ShowFeedbackPage(browser, std::string(), std::string());
}

void ToggleBookmarkBar(Browser* browser) {
  content::RecordAction(UserMetricsAction("ShowBookmarksBar"));
  ToggleBookmarkBarWhenVisible(browser->profile());
}

void ShowAppMenu(Browser* browser) {
  // We record the user metric for this event in WrenchMenu::RunMenu.
  browser->window()->ShowAppMenu();
}

void ShowAvatarMenu(Browser* browser) {
  browser->window()->ShowAvatarBubbleFromAvatarButton(
      BrowserWindow::AVATAR_BUBBLE_MODE_DEFAULT);
}

void OpenUpdateChromeDialog(Browser* browser) {
  if (UpgradeDetector::GetInstance()->is_outdated_install()) {
    content::NotificationService::current()->Notify(
        chrome::NOTIFICATION_OUTDATED_INSTALL,
        content::NotificationService::AllSources(),
        content::NotificationService::NoDetails());
  } else if (UpgradeDetector::GetInstance()->is_outdated_install_no_au()) {
    content::NotificationService::current()->Notify(
        chrome::NOTIFICATION_OUTDATED_INSTALL_NO_AU,
        content::NotificationService::AllSources(),
        content::NotificationService::NoDetails());
  } else {
    content::RecordAction(UserMetricsAction("UpdateChrome"));
    browser->window()->ShowUpdateChromeDialog();
  }
}

void ToggleSpeechInput(Browser* browser) {
  WebContents* web_contents =
      browser->tab_strip_model()->GetActiveWebContents();
  web_contents->GetRenderViewHost()->ToggleSpeechInput();

  SearchTabHelper* search_tab_helper =
      SearchTabHelper::FromWebContents(web_contents);
  // |search_tab_helper| can be null in unit tests.
  if (search_tab_helper)
    search_tab_helper->ToggleVoiceSearch();
}

bool CanRequestTabletSite(WebContents* current_tab) {
  if (!current_tab)
    return false;
  return current_tab->GetController().GetActiveEntry() != NULL;
}

bool IsRequestingTabletSite(Browser* browser) {
  WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
  if (!current_tab)
    return false;
  content::NavigationEntry* entry =
      current_tab->GetController().GetActiveEntry();
  if (!entry)
    return false;
  return entry->GetIsOverridingUserAgent();
}

void ToggleRequestTabletSite(Browser* browser) {
  WebContents* current_tab = browser->tab_strip_model()->GetActiveWebContents();
  if (!current_tab)
    return;
  NavigationController& controller = current_tab->GetController();
  NavigationEntry* entry = controller.GetActiveEntry();
  if (!entry)
    return;
  if (entry->GetIsOverridingUserAgent()) {
    entry->SetIsOverridingUserAgent(false);
  } else {
    entry->SetIsOverridingUserAgent(true);
    chrome::VersionInfo version_info;
    std::string product;
    if (version_info.is_valid())
      product = version_info.ProductNameAndVersionForUserAgent();
    current_tab->SetUserAgentOverride(content::BuildUserAgentFromOSAndProduct(
        kOsOverrideForTabletSite, product));
  }
  controller.ReloadOriginalRequestURL(true);
}

void ToggleFullscreenMode(Browser* browser) {
  DCHECK(browser);
  browser->fullscreen_controller()->ToggleBrowserFullscreenMode();
}

void ClearCache(Browser* browser) {
  BrowsingDataRemover* remover =
      BrowsingDataRemover::CreateForUnboundedRange(browser->profile());
  remover->Remove(BrowsingDataRemover::REMOVE_CACHE,
                  BrowsingDataHelper::UNPROTECTED_WEB);
  // BrowsingDataRemover takes care of deleting itself when done.
}

bool IsDebuggerAttachedToCurrentTab(Browser* browser) {
  WebContents* contents = browser->tab_strip_model()->GetActiveWebContents();
  return contents ?
      content::DevToolsAgentHost::IsDebuggerAttached(contents) : false;
}

void ViewSource(Browser* browser, WebContents* contents) {
  DCHECK(contents);

  // Use the last committed entry, since the pending entry hasn't loaded yet and
  // won't be copied into the cloned tab.
  NavigationEntry* entry = contents->GetController().GetLastCommittedEntry();
  if (!entry)
    return;

  ViewSource(browser, contents, entry->GetURL(), entry->GetPageState());
}

void ViewSource(Browser* browser,
                WebContents* contents,
                const GURL& url,
                const content::PageState& page_state) {
  content::RecordAction(UserMetricsAction("ViewSource"));
  DCHECK(contents);

  // Note that Clone does not copy the pending or transient entries, so the
  // active entry in view_source_contents will be the last committed entry.
  WebContents* view_source_contents = contents->Clone();
  DCHECK(view_source_contents->GetController().CanPruneAllButLastCommitted());
  view_source_contents->GetController().PruneAllButLastCommitted();
  NavigationEntry* active_entry =
      view_source_contents->GetController().GetActiveEntry();
  if (!active_entry)
    return;

  GURL view_source_url =
      GURL(content::kViewSourceScheme + std::string(":") + url.spec());
  active_entry->SetVirtualURL(view_source_url);

  // Do not restore scroller position.
  active_entry->SetPageState(page_state.RemoveScrollOffset());

  // Do not restore title, derive it from the url.
  active_entry->SetTitle(base::string16());

  // Now show view-source entry.
  if (browser->CanSupportWindowFeature(Browser::FEATURE_TABSTRIP)) {
    // If this is a tabbed browser, just create a duplicate tab inside the same
    // window next to the tab being duplicated.
    int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
    int add_types = TabStripModel::ADD_ACTIVE |
        TabStripModel::ADD_INHERIT_GROUP;
    browser->tab_strip_model()->InsertWebContentsAt(
        index + 1,
        view_source_contents,
        add_types);
  } else {
    Browser* b = new Browser(
        Browser::CreateParams(Browser::TYPE_TABBED, browser->profile(),
                              browser->host_desktop_type()));

    // Preserve the size of the original window. The new window has already
    // been given an offset by the OS, so we shouldn't copy the old bounds.
    BrowserWindow* new_window = b->window();
    new_window->SetBounds(gfx::Rect(new_window->GetRestoredBounds().origin(),
                          browser->window()->GetRestoredBounds().size()));

    // We need to show the browser now. Otherwise ContainerWin assumes the
    // WebContents is invisible and won't size it.
    b->window()->Show();

    // The page transition below is only for the purpose of inserting the tab.
    b->tab_strip_model()->AddWebContents(view_source_contents, -1,
                                         content::PAGE_TRANSITION_LINK,
                                         TabStripModel::ADD_ACTIVE);
  }

  SessionService* session_service =
      SessionServiceFactory::GetForProfileIfExisting(browser->profile());
  if (session_service)
    session_service->TabRestored(view_source_contents, false);
}

void ViewSelectedSource(Browser* browser) {
  ViewSource(browser, browser->tab_strip_model()->GetActiveWebContents());
}

bool CanViewSource(const Browser* browser) {
  return !browser->is_devtools() &&
      browser->tab_strip_model()->GetActiveWebContents()->GetController().
          CanViewSource();
}

void CreateApplicationShortcuts(Browser* browser) {
  content::RecordAction(UserMetricsAction("CreateShortcut"));
  extensions::TabHelper::FromWebContents(
      browser->tab_strip_model()->GetActiveWebContents())->
          CreateApplicationShortcuts();
}

void CreateHostedAppFromCurrentWebContents(Browser* browser) {
  content::RecordAction(UserMetricsAction("CreateHostedApp"));
  extensions::TabHelper::FromWebContents(
      browser->tab_strip_model()->GetActiveWebContents())->
          CreateHostedAppFromWebContents();
}

bool CanCreateApplicationShortcuts(const Browser* browser) {
  return extensions::TabHelper::FromWebContents(
      browser->tab_strip_model()->GetActiveWebContents())->
          CanCreateApplicationShortcuts();
}

void ConvertTabToAppWindow(Browser* browser,
                           content::WebContents* contents) {
  const GURL& url = contents->GetController().GetActiveEntry()->GetURL();
  std::string app_name = web_app::GenerateApplicationNameFromURL(url);

  int index = browser->tab_strip_model()->GetIndexOfWebContents(contents);
  if (index >= 0)
    browser->tab_strip_model()->DetachWebContentsAt(index);

  Browser* app_browser = new Browser(
      Browser::CreateParams::CreateForApp(
          Browser::TYPE_POPUP, app_name, gfx::Rect(), browser->profile(),
          browser->host_desktop_type()));
  app_browser->tab_strip_model()->AppendWebContents(contents, true);

  contents->GetMutableRendererPrefs()->can_accept_load_drops = false;
  contents->GetRenderViewHost()->SyncRendererPrefs();
  app_browser->window()->Show();
}

}  // namespace chrome
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root/chrome/browser/ui/browser_commands.cc

DEFINITIONS
