Use base::MessageLoop in more files.

chrome/browser/sync/glue/generic_change_processor_unittest.cc

 // 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.
 
 #include "chrome/browser/sync/glue/generic_change_processor.h"
 
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/stringprintf.h"
@@ skipping 52 matching lines @@
 
   GenericChangeProcessor* change_processor() {
     return change_processor_.get();
   }
 
   syncer::UserShare* user_share() {
     return test_user_share_.user_share();
   }
 
  private:
-  MessageLoop loop;
+  base::MessageLoop loop;
 
   syncer::SyncMergeResult sync_merge_result_;
   base::WeakPtrFactory<syncer::SyncMergeResult> merge_result_ptr_factory_;
 
   syncer::FakeSyncableService fake_syncable_service_;
   base::WeakPtrFactory<syncer::FakeSyncableService>
       syncable_service_ptr_factory_;
 
   DataTypeErrorHandlerMock data_type_error_handler_;
   syncer::TestUserShare test_user_share_;
@@ skipping 16 matching lines @@
 
     // Start with a simple test.  We can add more in-depth testing later.
     EXPECT_EQ(static_cast<size_t>(kNumChildNodes), sync_data.size());
   }
 }
 
 }  // namespace
 
 }  // namespace browser_sync