Add GetIOMessageLoopProxy method to RenderThread interface.

content/test/mock_render_thread.cc

 // 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.
 
 #include "content/test/mock_render_thread.h"
 
 #include "base/process_util.h"
 #include "content/common/view_messages.h"
 #include "ipc/ipc_message_utils.h"
 #include "ipc/ipc_sync_message.h"
@@ skipping 53 matching lines @@
 }
 
 std::string MockRenderThread::GetLocale() {
   return std::string();
 }
 
 IPC::SyncMessageFilter* MockRenderThread::GetSyncMessageFilter() {
   return NULL;
 }
 
+scoped_refptr<base::MessageLoopProxy>
+    MockRenderThread::GetIOMessageLoopProxy() {
+  return scoped_refptr<base::MessageLoopProxy>();
+}
+
 void MockRenderThread::AddRoute(int32 routing_id,
                                 IPC::Channel::Listener* listener) {
   // We may hear this for views created from OnMsgCreateWindow as well,
   // in which case we don't want to track the new widget.
   if (routing_id_ == routing_id)
     widget_ = listener;
 }
 
 void MockRenderThread::RemoveRoute(int32 routing_id) {
   // We may hear this for views created from OnMsgCreateWindow as well,
@@ skipping 129 matching lines @@
 void MockRenderThread::OnDuplicateSection(
     base::SharedMemoryHandle renderer_handle,
     base::SharedMemoryHandle* browser_handle) {
   // We don't have to duplicate the input handles since RenderViewTest does not
   // separate a browser process from a renderer process.
   *browser_handle = renderer_handle;
 }
 #endif  // defined(OS_WIN)
 
 }  // namespace content