content: Add an overridable task runner to ChildThreadImpl

content/renderer/in_process_renderer_thread.cc

 // 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.
 
 #include "content/renderer/in_process_renderer_thread.h"
 
 #include "content/renderer/render_process.h"
 #include "content/renderer/render_process_impl.h"
 #include "content/renderer/render_thread_impl.h"
+#include "content/renderer/scheduler/renderer_scheduler.h"
 
 namespace content {
 
 InProcessRendererThread::InProcessRendererThread(const std::string& channel_id)
     : Thread("Chrome_InProcRendererThread"), channel_id_(channel_id) {
 }
 
 InProcessRendererThread::~InProcessRendererThread() {
   Stop();
 }
 
 void InProcessRendererThread::Init() {
   render_process_.reset(new RenderProcessImpl());
-  new RenderThreadImpl(channel_id_);
+  scoped_ptr<RendererScheduler> renderer_scheduler =
+      RendererScheduler::Create();
+  new RenderThreadImpl(channel_id_, renderer_scheduler.Pass());
 }
 
 void InProcessRendererThread::CleanUp() {
   render_process_.reset();
 
   // It's a little lame to manually set this flag.  But the single process
   // RendererThread will receive the WM_QUIT.  We don't need to assert on
   // this thread, so just force the flag manually.
   // If we want to avoid this, we could create the InProcRendererThread
   // directly with _beginthreadex() rather than using the Thread class.
   // We used to set this flag in the Init function above. However there
   // other threads like WebThread which are created by this thread
   // which resets this flag. Please see Thread::StartWithOptions. Setting
   // this flag to true in Cleanup works around these problems.
   SetThreadWasQuitProperly(true);
 }
 
 base::Thread* CreateInProcessRendererThread(const std::string& channel_id) {
   return new InProcessRendererThread(channel_id);
 }
 
 }  // namespace content