sync: Use base::MessageLoop.

sync/notifier/sync_system_resources_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/sync_system_resources.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 65 matching lines @@
       // Owned by ScheduleWithDelay.
       MockClosure mock_closure;
       base::Closure* should_not_run = mock_closure.CreateClosure();
       EXPECT_CALL(mock_closure, Run()).Times(0);
       sync_system_resources_.internal_scheduler()->Schedule(
           invalidation::TimeDelta::FromSeconds(0), should_not_run);
     }
   }
 
   // Needed by |sync_system_resources_|.
-  MessageLoop message_loop_;
+  base::MessageLoop message_loop_;
   MockStateWriter mock_state_writer_;
   SyncSystemResources sync_system_resources_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SyncSystemResourcesTest);
 };
 
 // Make sure current_time() doesn't crash or leak.
 TEST_F(SyncSystemResourcesTest, CurrentTime) {
   invalidation::Time current_time =
@@ skipping 72 matching lines @@
       .WillOnce(SaveArg<0>(&results));
   sync_system_resources_.storage()->WriteKey(
       std::string(), "state", mock_storage_callback.CreateCallback());
   message_loop_.RunUntilIdle();
   EXPECT_EQ(invalidation::Status(invalidation::Status::SUCCESS, std::string()),
             results);
 }
 
 }  // namespace
 }  // namespace syncer