components: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

components/sync_driver/proxy_data_type_controller.h

 // Copyright 2014 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 COMPONENTS_SYNC_DRIVER_PROXY_DATA_TYPE_CONTROLLER_H__
 #define COMPONENTS_SYNC_DRIVER_PROXY_DATA_TYPE_CONTROLLER_H__
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/single_thread_task_runner.h"
 #include "components/sync_driver/data_type_controller.h"
 
 namespace sync_driver {
 
 // Implementation for proxy datatypes. These are datatype that have no
 // representation in sync, and therefore no change processor or syncable
 // service.
 class ProxyDataTypeController : public DataTypeController {
  public:
   explicit ProxyDataTypeController(
-       scoped_refptr<base::MessageLoopProxy> ui_thread,
-       syncer::ModelType type);
+      scoped_refptr<base::SingleThreadTaskRunner> ui_thread,
+      syncer::ModelType type);
 
   // DataTypeController interface.
   void LoadModels(const ModelLoadCallback& model_load_callback) override;
   void StartAssociating(const StartCallback& start_callback) override;
   void Stop() override;
   syncer::ModelType type() const override;
   syncer::ModelSafeGroup model_safe_group() const override;
   ChangeProcessor* GetChangeProcessor() const override;
   std::string name() const override;
   State state() const override;
@@ skipping 14 matching lines @@
 
   // The actual type for this controller.
   syncer::ModelType type_;
 
   DISALLOW_COPY_AND_ASSIGN(ProxyDataTypeController);
 };
 
 }  // namespace sync_driver
 
 #endif  // COMPONENTS_SYNC_DRIVER_PROXY_DATA_TYPE_CONTROLLER_H__