Enable fast user switching in Win8/Ash mode.

chrome/browser/ui/browser_commands.cc

 // 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"
@@ skipping 1043 matching lines @@
   // 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,
       signin::ManageAccountsParams());
 }
 
+void ShowFastUserSwitcher(Browser* browser) {
+  browser->window()->ShowAvatarBubbleFromAvatarButton(
+      BrowserWindow::AVATAR_BUBBLE_MODE_FAST_USER_SWITCH,
+      signin::ManageAccountsParams());
+}
+
 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(),
@@ skipping 203 matching lines @@
                                           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();
 }
 #endif  // defined(ENABLE_EXTENSIONS)
 
 }  // namespace chrome