[Sync] Fix namespace for sync_driver component

chrome/browser/sync/sessions/session_data_type_controller.h

 // 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.
 
 #ifndef CHROME_BROWSER_SYNC_SESSIONS_SESSION_DATA_TYPE_CONTROLLER_H_
 #define CHROME_BROWSER_SYNC_SESSIONS_SESSION_DATA_TYPE_CONTROLLER_H_
 
 #include "components/sync_driver/ui_data_type_controller.h"
 #include "content/public/browser/notification_observer.h"
 #include "content/public/browser/notification_registrar.h"
 
 class Profile;
 
 namespace browser_sync {
 
 // Overrides StartModels to avoid sync contention with sessions during
 // a session restore operation at startup.
-class SessionDataTypeController : public UIDataTypeController,
+class SessionDataTypeController : public sync_driver::UIDataTypeController,
                                   public content::NotificationObserver {
  public:
-  SessionDataTypeController(SyncApiComponentFactory* factory,
+  SessionDataTypeController(sync_driver::SyncApiComponentFactory* factory,
                             Profile* profile,
                             const DisableTypeCallback& disable_callback);
 
   // NotificationObserver interface.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
  protected:
   virtual ~SessionDataTypeController();
   virtual bool StartModels() OVERRIDE;
   virtual void StopModels() OVERRIDE;
 
  private:
   Profile* const profile_;
   content::NotificationRegistrar notification_registrar_;
   DISALLOW_COPY_AND_ASSIGN(SessionDataTypeController);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_SESSIONS_SESSION_DATA_TYPE_CONTROLLER_H_