move V2 classes in chrome/engine to syncer_v2 namespace

chrome/browser/sync/profile_sync_service.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_PROFILE_SYNC_SERVICE_H_
 #define CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_
 
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 338 matching lines @@
   // Called by a component that supports non-blocking sync when it is ready to
   // initialize its connection to the sync backend.
   //
   // If policy allows for syncing this type (ie. it is "preferred"), then this
   // should result in a message to enable syncing for this type when the sync
   // backend is available.  If the type is not to be synced, this should result
   // in a message that allows the component to delete its local sync state.
   void InitializeNonBlockingType(
       syncer::ModelType type,
       const scoped_refptr<base::SequencedTaskRunner>& task_runner,
-      const base::WeakPtr<syncer::ModelTypeSyncProxyImpl>& proxy);
+      const base::WeakPtr<syncer_v2::ModelTypeSyncProxyImpl>& proxy);
 
   // Returns the SyncedWindowDelegatesGetter from the embedded sessions manager.
   virtual browser_sync::SyncedWindowDelegatesGetter*
   GetSyncedWindowDelegatesGetter() const;
 
   // Returns the SyncableService for syncer::SESSIONS.
   virtual syncer::SyncableService* GetSessionsSyncableService();
 
   // Returns the SyncableService for syncer::DEVICE_INFO.
   virtual syncer::SyncableService* GetDeviceInfoSyncableService();
@@ skipping 717 matching lines @@
   base::WeakPtrFactory<ProfileSyncService> startup_controller_weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ProfileSyncService);
 };
 
 bool ShouldShowActionOnUI(
     const syncer::SyncProtocolError& error);
 
 
 #endif  // CHROME_BROWSER_SYNC_PROFILE_SYNC_SERVICE_H_