[Sync] Fix namespaces for the browser_sync component.

ios/chrome/browser/sync/ios_chrome_profile_sync_service_factory.h

 // Copyright 2015 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 IOS_CHROME_BROWSER_SYNC_IOS_CHROME_PROFILE_SYNC_SERVICE_FACTORY_H_
 #define IOS_CHROME_BROWSER_SYNC_IOS_CHROME_PROFILE_SYNC_SERVICE_FACTORY_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "components/keyed_service/ios/browser_state_keyed_service_factory.h"
 
 namespace base {
 template <typename T>
 struct DefaultSingletonTraits;
 }
 
+namespace browser_sync {
+class ProfileSyncService;
+}  // namespace browser_sync
+
 namespace ios {
 class ChromeBrowserState;
 }

[skym, 2016/09/22 17:26:00]

Closing namespaces.

[maxbogue, 2016/09/22 19:41:15]

Done.

 
-class ProfileSyncService;
-
 // Singleton that owns all ProfileSyncService and associates them with
 // ios::ChromeBrowserState.
 class IOSChromeProfileSyncServiceFactory
     : public BrowserStateKeyedServiceFactory {
  public:
-  static ProfileSyncService* GetForBrowserState(
+  static browser_sync::ProfileSyncService* GetForBrowserState(
       ios::ChromeBrowserState* browser_state);
 
-  static ProfileSyncService* GetForBrowserStateIfExists(
+  static browser_sync::ProfileSyncService* GetForBrowserStateIfExists(
       ios::ChromeBrowserState* browser_state);
 
   static IOSChromeProfileSyncServiceFactory* GetInstance();
 
  private:
   friend struct base::DefaultSingletonTraits<
       IOSChromeProfileSyncServiceFactory>;
 
   IOSChromeProfileSyncServiceFactory();
   ~IOSChromeProfileSyncServiceFactory() override;
 
   // BrowserContextKeyedServiceFactory:
   std::unique_ptr<KeyedService> BuildServiceInstanceFor(
       web::BrowserState* context) const override;
 };
 
 #endif  // IOS_CHROME_BROWSER_SYNC_IOS_CHROME_PROFILE_SYNC_SERVICE_FACTORY_H_