Disable forwarding tasks to the Blink scheduler

content/renderer/render_thread_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.
 
 #include "content/renderer/render_thread_impl.h"
 
 #include <algorithm>
 #include <limits>
 #include <map>
 #include <vector>
@@ skipping 816 matching lines @@
     ResourceDispatcherDelegate* delegate) {
   resource_dispatcher()->set_delegate(delegate);
 }
 
 void RenderThreadImpl::EnsureWebKitInitialized() {
   if (webkit_platform_support_)
     return;
 
   webkit_platform_support_.reset(new RendererWebKitPlatformSupportImpl);
   blink::initialize(webkit_platform_support_.get());
-  main_thread_compositor_task_runner_ =
-      make_scoped_refptr(new SchedulerProxyTaskRunner<
-          &blink::WebSchedulerProxy::postCompositorTask>());
+  main_thread_compositor_task_runner_ = base::MessageLoopProxy::current();
 
   v8::Isolate* isolate = blink::mainThreadIsolate();
 
   isolate->SetCounterFunction(base::StatsTable::FindLocation);
   isolate->SetCreateHistogramFunction(CreateHistogram);
   isolate->SetAddHistogramSampleFunction(AddHistogramSample);
 
   const CommandLine& command_line = *CommandLine::ForCurrentProcess();
 
   bool enable = !command_line.HasSwitch(switches::kDisableThreadedCompositing);
@@ skipping 802 matching lines @@
   hidden_widget_count_--;
 
   if (!GetContentClient()->renderer()->RunIdleHandlerWhenWidgetsHidden()) {
     return;
   }
 
   ScheduleIdleHandler(kLongIdleHandlerDelayMs);
 }
 
 }  // namespace content