Make ChannelMojoHost::ChannelDelegate a RefContedThreadSafe

content/browser/renderer_host/render_process_host_impl.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.
 
 // Represents the browser side of the browser <--> renderer communication
 // channel. There will be one RenderProcessHost per renderer process.
 
 #include "content/browser/renderer_host/render_process_host_impl.h"
 
 #include <algorithm>
@@ skipping 647 matching lines @@
   init_time_ = base::TimeTicks::Now();
   return true;
 }
 
 scoped_ptr<IPC::ChannelProxy> RenderProcessHostImpl::CreateChannelProxy(
     const std::string& channel_id) {
   scoped_refptr<base::SingleThreadTaskRunner> runner =
       BrowserThread::GetMessageLoopProxyForThread(BrowserThread::IO);
   if (ShouldUseMojoChannel()) {
     VLOG(1) << "Mojo Channel is enabled on host";
-    scoped_refptr<base::TaskRunner> io_task_runner =
+    scoped_refptr<base::SequencedTaskRunner> io_task_runner =
         BrowserThread::UnsafeGetMessageLoopForThread(BrowserThread::IO)
               ->task_runner();
     if (!channel_mojo_host_) {
       channel_mojo_host_.reset(new IPC::ChannelMojoHost(io_task_runner));
     }
 
     if (run_renderer_in_process()) {
       ChannelInit::SetSingleProcessIOTaskRunner(io_task_runner);
     }
 
@@ skipping 1718 matching lines @@
   if (worker_ref_count_ == 0)
     Cleanup();
 }
 
 void RenderProcessHostImpl::GetAudioOutputControllers(
     const GetAudioOutputControllersCallback& callback) const {
   audio_renderer_host()->GetOutputControllers(callback);
 }
 
 }  // namespace content