Fix fast user switcher appearance when empty.

chrome/browser/ui/cocoa/profiles/profile_chooser_controller.mm

 // Copyright 2014 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.
 
 #import <Cocoa/Cocoa.h>
 #import <Carbon/Carbon.h>  // kVK_Return.
 
 #import "chrome/browser/ui/cocoa/profiles/profile_chooser_controller.h"
 
 #include "base/mac/bundle_locations.h"
@@ skipping 942 matching lines @@
 
 - (void)setTutorialMode:(profiles::TutorialMode)tutorialMode {
   tutorialMode_ = tutorialMode;
 }
 
 - (IBAction)switchToProfile:(id)sender {
   // Check the event flags to see if a new window should be created.
   bool alwaysCreate = ui::WindowOpenDispositionFromNSEvent(
       [NSApp currentEvent]) == NEW_WINDOW;
   avatarMenu_->SwitchToProfile([sender tag], alwaysCreate,
-                               ProfileMetrics::SWITCH_PROFILE_ICON);
+                               ProfileMetrics::SWITCH_PROFILE_FAST_SWITCHER);
 }
 
 - (IBAction)showUserManager:(id)sender {
   UserManager::Show(base::FilePath(),
                     profiles::USER_MANAGER_NO_TUTORIAL,
                     profiles::USER_MANAGER_SELECT_PROFILE_NO_ACTION);
   [self postActionPerformed:
       ProfileMetrics::PROFILE_DESKTOP_MENU_OPEN_USER_MANAGER];
 }
 
@@ skipping 1310 matching lines @@
 }
 
 - (bool)shouldShowGoIncognito {
   bool incognitoAvailable =
       IncognitoModePrefs::GetAvailability(browser_->profile()->GetPrefs()) !=
           IncognitoModePrefs::DISABLED;
   return incognitoAvailable && !browser_->profile()->IsGuestSession();
 }
 
 @end