Reduce usage of MessageLoopProxy in base/

components/webdata/common/web_database_service.h

 // 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.
 
 // Chromium settings and storage represent user-selected preferences and
 // information and MUST not be extracted, overwritten or modified except
 // through Chromium defined APIs.
 
 #ifndef COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_
 #define COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_
 
 #include "base/basictypes.h"
 #include "base/callback_forward.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/ref_counted_delete_on_message_loop.h"
+#include "base/memory/ref_counted_delete_on_task_runner.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/observer_list.h"
 #include "components/webdata/common/web_data_service_base.h"
 #include "components/webdata/common/web_database.h"
 #include "components/webdata/common/webdata_export.h"
 
 class WebDataServiceBackend;
 class WebDataRequestManager;
@@ skipping 12 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 //
 // WebDatabaseService defines the interface to a generic data repository
 // responsible for controlling access to the web database (metadata associated
 // with web pages).
 //
 ////////////////////////////////////////////////////////////////////////////////
 
 class WEBDATA_EXPORT WebDatabaseService
-    : public base::RefCountedDeleteOnMessageLoop<WebDatabaseService> {
+    : public base::RefCountedDeleteOnTaskRunner<WebDatabaseService> {
  public:
   typedef base::Callback<scoped_ptr<WDTypedResult>(WebDatabase*)> ReadTask;
   typedef base::Callback<WebDatabase::State(WebDatabase*)> WriteTask;
 
   // Types for managing DB loading callbacks.
   typedef base::Closure DBLoadedCallback;
   typedef base::Callback<void(sql::InitStatus)> DBLoadErrorCallback;
 
   // Takes the path to the WebDatabase file.
   // WebDatabaseService lives on |ui_thread| and posts tasks to |db_thread|.
@@ skipping 47 matching lines @@
   // (following a database load failure), then cleared.
   // Note: if the database load is already complete, then the callback will NOT
   // be stored or called.
   void RegisterDBErrorCallback(const DBLoadErrorCallback& callback);
 
   bool db_loaded() const { return db_loaded_; };
 
  private:
   class BackendDelegate;
   friend class BackendDelegate;
-  friend class base::RefCountedDeleteOnMessageLoop<WebDatabaseService>;
+  friend class base::RefCountedDeleteOnTaskRunner<WebDatabaseService>;
   friend class base::DeleteHelper<WebDatabaseService>;
 
   typedef std::vector<DBLoadedCallback> LoadedCallbacks;
   typedef std::vector<DBLoadErrorCallback> ErrorCallbacks;
 
   virtual ~WebDatabaseService();
 
   void OnDatabaseLoadDone(sql::InitStatus status);
 
   base::FilePath path_;
@@ skipping 13 matching lines @@
 
   scoped_refptr<base::MessageLoopProxy> db_thread_;
 
   // All vended weak pointers are invalidated in ShutdownDatabase().
   base::WeakPtrFactory<WebDatabaseService> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(WebDatabaseService);
 };
 
 #endif  // COMPONENTS_WEBDATA_COMMON_WEB_DATABASE_SERVICE_H_