[Sync] Fix namespaces for the browser_sync component.

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 "chrome/browser/ui/cocoa/profiles/profile_chooser_controller.h"
 
 #import <Carbon/Carbon.h>  // kVK_Return.
 #import <Cocoa/Cocoa.h>
 #include <stddef.h>
 
@@ skipping 1185 matching lines @@
 
   [self initMenuContentsWithView:profiles::BUBBLE_VIEW_MODE_ACCOUNT_REMOVAL];
 }
 
 - (IBAction)showSignoutView:(id)sender {
   chrome::ShowSettingsSubPage(browser_, chrome::kSignOutSubPage);
 }
 
 - (IBAction)showSignoutSigninView:(id)sender {
   if (ProfileSyncServiceFactory::GetForProfile(browser_->profile()))
-    ProfileSyncService::SyncEvent(ProfileSyncService::STOP_FROM_OPTIONS);
+    browser_sync::ProfileSyncService::SyncEvent(
+        browser_sync::ProfileSyncService::STOP_FROM_OPTIONS);
   SigninManagerFactory::GetForProfile(browser_->profile())
       ->SignOut(signin_metrics::USER_CLICKED_SIGNOUT_SETTINGS,
                 signin_metrics::SignoutDelete::IGNORE_METRIC);
   [self showSigninUIForMode:profiles::BUBBLE_VIEW_MODE_GAIA_SIGNIN];
 }
 
 - (IBAction)showAccountReauthenticationView:(id)sender {
   DCHECK(!isGuestSession_);
   [self showSigninUIForMode:profiles::BUBBLE_VIEW_MODE_GAIA_REAUTH];
 }
@@ skipping 1718 matching lines @@
 }
 
 - (bool)shouldShowGoIncognito {
   bool incognitoAvailable =
       IncognitoModePrefs::GetAvailability(browser_->profile()->GetPrefs()) !=
           IncognitoModePrefs::DISABLED;
   return incognitoAvailable && !browser_->profile()->IsGuestSession();
 }
 
 @end