sync: Use base::MessageLoop.

sync/notifier/sync_system_resources.h

 // Copyright 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.
 //
 // Simple system resources class that uses the current message loop
 // for scheduling.  Assumes the current message loop is already
 // running.
 
 #ifndef SYNC_NOTIFIER_SYNC_SYSTEM_RESOURCES_H_
 #define SYNC_NOTIFIER_SYNC_SYSTEM_RESOURCES_H_
@@ skipping 51 matching lines @@
   virtual invalidation::Time GetCurrentTime() const OVERRIDE;
 
   virtual void SetSystemResources(
       invalidation::SystemResources* resources) OVERRIDE;
 
  private:
   base::WeakPtrFactory<SyncInvalidationScheduler> weak_factory_;
   // Holds all posted tasks that have not yet been run.
   std::set<invalidation::Closure*> posted_tasks_;
 
-  const MessageLoop* created_on_loop_;
+  const base::MessageLoop* created_on_loop_;
   bool is_started_;
   bool is_stopped_;
 
   // Runs the task, deletes it, and removes it from |posted_tasks_|.
   void RunPostedTask(invalidation::Closure* task);
 };
 
 class SyncStorage : public invalidation::Storage {
  public:
   SyncStorage(StateWriter* state_writer, invalidation::Scheduler* scheduler);
@@ skipping 60 matching lines @@
   scoped_ptr<SyncLogger> logger_;
   scoped_ptr<SyncInvalidationScheduler> internal_scheduler_;
   scoped_ptr<SyncInvalidationScheduler> listener_scheduler_;
   scoped_ptr<SyncStorage> storage_;
   PushClientChannel push_client_channel_;
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_NOTIFIER_SYNC_SYSTEM_RESOURCES_H_