Usage of ThreadTaskRunner in lieu of in [chrome/browser/sync],[components/sync_driver]

components/sync_driver/ui_data_type_controller.h

Index: components/sync_driver/ui_data_type_controller.h
diff --git a/components/sync_driver/ui_data_type_controller.h b/components/sync_driver/ui_data_type_controller.h
index dcade3794cca8cf57cec62c8c4a01e3158a76f95..4bdcecdba982530c27b8048fc879f63092d19e8e 100644
--- a/components/sync_driver/ui_data_type_controller.h
+++ b/components/sync_driver/ui_data_type_controller.h
@@ -32,7 +32,7 @@ namespace sync_driver {
 class UIDataTypeController : public DataTypeController {
  public:
   UIDataTypeController(
-      scoped_refptr<base::MessageLoopProxy> ui_thread,
+      scoped_refptr<base::SingleThreadTaskRunner> ui_thread,
       const base::Closure& error_callback,
       syncer::ModelType type,
       SyncApiComponentFactory* sync_factory);
@@ -120,7 +120,7 @@ class UIDataTypeController : public DataTypeController {
   // real work. We do not own the object.
   base::WeakPtr<syncer::SyncableService> local_service_;
 
-  scoped_refptr<base::MessageLoopProxy> ui_thread_;
+  scoped_refptr<base::SingleThreadTaskRunner> ui_thread_;
  private:
    // Associate the sync model with the service's model, then start syncing.
   virtual void Associate();