Use a direct include of the message_loop header in cc/, chrome_frame/, cloud_print/, components.

cc/resources/worker_pool.h

 // Copyright 2013 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 CC_RESOURCES_WORKER_POOL_H_
 #define CC_RESOURCES_WORKER_POOL_H_
 
 #include <deque>
 #include <string>
 #include <vector>
 
 #include "base/cancelable_callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "cc/base/cc_export.h"
 #include "cc/base/scoped_ptr_hash_map.h"
 
 namespace cc {
 namespace internal {
 
 class CC_EXPORT WorkerPoolTask
     : public base::RefCountedThreadSafe<WorkerPoolTask> {
  public:
   virtual void RunOnWorkerThread(unsigned thread_index) = 0;
@@ skipping 107 matching lines @@
 
   bool in_dispatch_completion_callbacks_;
 
   // Hide the gory details of the worker pool in |inner_|.
   const scoped_ptr<Inner> inner_;
 };
 
 }  // namespace cc
 
 #endif  // CC_RESOURCES_WORKER_POOL_H_