content/child: Remove use of MessageLoopProxy and deprecated MessageLoop APIs

content/child/npapi/plugin_instance.h

 // 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.
 
 // TODO: Need to deal with NPAPI's NPSavedData.
 //       I haven't seen plugins use it yet.
 
 #ifndef CONTENT_CHILD_NPAPI_PLUGIN_INSTANCE_H_
 #define CONTENT_CHILD_NPAPI_PLUGIN_INSTANCE_H_
 
 #include <map>
 #include <stack>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "third_party/npapi/bindings/npapi.h"
 #include "third_party/npapi/bindings/nphostapi.h"
 #include "ui/gfx/geometry/point.h"
 #include "ui/gfx/geometry/rect.h"
 #include "ui/gfx/native_widget_types.h"
 #include "url/gurl.h"
 
 namespace base {
-class MessageLoop;
+class SingleThreadTaskRunner;
 }
 
 namespace content {
 
 class PluginLib;
 class PluginHost;
 class PluginStream;
 class PluginStreamUrl;
 class WebPlugin;
 class WebPluginResourceClient;
@@ skipping 260 matching lines @@
   GURL                                     get_url_;
   intptr_t                                 get_notify_data_;
   bool                                     use_mozilla_user_agent_;
 #if defined(OS_MACOSX)
   NPDrawingModel                           drawing_model_;
   NPEventModel                             event_model_;
   gfx::Point                               plugin_origin_;
   gfx::Rect                                containing_window_frame_;
   NPCocoaEvent*                            currently_handled_event_;  // weak
 #endif
-  base::MessageLoop*                       message_loop_;
+  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
   scoped_refptr<PluginStreamUrl>           plugin_data_stream_;
 
   // This flag if true indicates that the plugin data would be passed from
   // webkit. if false indicates that the plugin should download the data.
   bool                                     load_manually_;
 
   // Stack indicating if popups are to be enabled for the outgoing
   // NPN_GetURL/NPN_GetURLNotify calls.
   std::stack<bool>                         popups_enabled_stack_;
 
@@ skipping 44 matching lines @@
 
  private:
   scoped_refptr<PluginInstance> instance_;
   DISALLOW_COPY_AND_ASSIGN(ScopedCurrentPluginEvent);
 };
 #endif
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_NPAPI_PLUGIN_INSTANCE_H_