Use a direct include of the message_loop header in ppapi/, printing/, rlz/, sync/.

sync/notifier/registration_manager_unittest.cc

 // 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.
 
 #include "sync/notifier/registration_manager.h"
 
 #include <algorithm>
 #include <cmath>
 #include <cstddef>
 #include <deque>
 #include <vector>
 
 #include "base/basictypes.h"
-#include "base/message_loop.h"
+#include "base/message_loop/message_loop.h"
 #include "base/stl_util.h"
 #include "google/cacheinvalidation/include/invalidation-client.h"
 #include "sync/notifier/invalidation_util.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace syncer {
 namespace {
 
 // Fake registration manager that lets you override jitter.
 class FakeRegistrationManager : public RegistrationManager {
@@ skipping 399 matching lines @@
       fake_registration_manager_.GetPendingRegistrationsForTest());
 
   fake_registration_manager_.MarkAllRegistrationsLost();
   ExpectPendingRegistrations(
       enabled_ids, 0.0,
       fake_registration_manager_.GetPendingRegistrationsForTest());
 }
 
 }  // namespace
 }  // namespace syncer