Move MessageLoop to base namespace.

sync/engine/sync_scheduler_impl.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.
 
 #ifndef SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 #define SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_
 
 #include <map>
 #include <string>
 
@@ skipping 269 matching lines @@
   base::WeakPtrFactory<SyncSchedulerImpl> weak_ptr_factory_for_weak_handle_;
 
   // For certain methods that need to worry about X-thread posting.
   const WeakHandle<SyncSchedulerImpl> weak_handle_this_;
 
   // Used for logging.
   const std::string name_;
 
   // The message loop this object is on.  Almost all methods have to
   // be called on this thread.
-  MessageLoop* const sync_loop_;
+  base::MessageLoop* const sync_loop_;
 
   // Set in Start(), unset in Stop().
   bool started_;
 
   // Modifiable versions of kDefaultLongPollIntervalSeconds which can be
   // updated by the server.
   base::TimeDelta syncer_short_poll_interval_seconds_;
   base::TimeDelta syncer_long_poll_interval_seconds_;
 
   // Server-tweakable sessions commit delay.
@@ skipping 40 matching lines @@
   // take place during a sync cycle. We call this out because such violations
   // could result in tight sync loops hitting sync servers.
   bool no_scheduling_allowed_;
 
   DISALLOW_COPY_AND_ASSIGN(SyncSchedulerImpl);
 };
 
 }  // namespace syncer
 
 #endif  // SYNC_ENGINE_SYNC_SCHEDULER_IMPL_H_