[Sync] Fix namespaces for the browser_sync component.

chrome/browser/sync/sync_global_error.h

 // Copyright (c) 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.
 
 #ifndef CHROME_BROWSER_SYNC_SYNC_GLOBAL_ERROR_H_
 #define CHROME_BROWSER_SYNC_SYNC_GLOBAL_ERROR_H_
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "chrome/browser/ui/global_error/global_error.h"
 #include "components/keyed_service/core/keyed_service.h"
 #include "components/sync/driver/sync_error_controller.h"
 
 class GlobalErrorService;
 class LoginUIService;
+
+namespace browser_sync {
 class ProfileSyncService;
+}  // namespace browser_sync
 
 // Shows sync errors on the wrench menu using a bubble view and a menu item.
 class SyncGlobalError : public GlobalErrorWithStandardBubble,
                         public SyncErrorController::Observer,
                         public KeyedService {
  public:
   SyncGlobalError(GlobalErrorService* global_error_service,
                   LoginUIService* login_ui_service,
                   SyncErrorController* error_controller,
-                  ProfileSyncService* profile_sync_service);
+                  browser_sync::ProfileSyncService* profile_sync_service);
   ~SyncGlobalError() override;
 
   // KeyedService:
   void Shutdown() override;
 
   // GlobalErrorWithStandardBubble:
   bool HasMenuItem() override;
   int MenuItemCommandID() override;
   base::string16 MenuItemLabel() override;
   void ExecuteMenuItem(Browser* browser) override;
@@ skipping 15 matching lines @@
   base::string16 menu_label_;
 
   GlobalErrorService* global_error_service_;
 
   const LoginUIService* login_ui_service_;
 
   // The error controller to query for error details. Owned by the
   // ProfileSyncService this SyncGlobalError depends on.
   SyncErrorController* error_controller_;
 
-  const ProfileSyncService* sync_service_;
+  const browser_sync::ProfileSyncService* sync_service_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncGlobalError);
 };
 
 #endif  // CHROME_BROWSER_SYNC_SYNC_GLOBAL_ERROR_H_