Forward input tasks to the Blink scheduler

content/renderer/render_thread_impl.h

Index: content/renderer/render_thread_impl.h
diff --git a/content/renderer/render_thread_impl.h b/content/renderer/render_thread_impl.h
index 3bc7f9dc887ef8e135bdc1605eab2820c33b6e6e..83ea9217bffdf329f73e7fe44eac2a97072a0952 100644
--- a/content/renderer/render_thread_impl.h
+++ b/content/renderer/render_thread_impl.h
@@ -16,6 +16,7 @@
 #include "base/threading/thread_checker.h"
 #include "base/timer/timer.h"
 #include "build/build_config.h"
+#include "cc/trees/main_thread_task_runner.h"
 #include "content/child/child_thread.h"
 #include "content/common/content_export.h"
 #include "content/common/gpu/client/gpu_channel_host.h"
@@ -43,6 +44,7 @@ class WebMediaStreamCenterClient;
 
 namespace base {
 class MessageLoopProxy;
+class SingleThreadTaskRunner;
 class Thread;
 }
 
@@ -198,6 +200,10 @@ class CONTENT_EXPORT RenderThreadImpl : public RenderThread,
     return webkit_platform_support_.get();
   }
 
+  scoped_refptr<cc::MainThreadTaskRunner> main_thread_task_runner() const {
+    return main_thread_task_runner_;
+  }
+
   IPC::ForwardingMessageFilter* compositor_output_surface_filter() const {
     return compositor_output_surface_filter_.get();
   }
@@ -567,6 +573,9 @@ class CONTENT_EXPORT RenderThreadImpl : public RenderThread,
   // backed GpuMemoryBuffers prevent this. crbug.com/325045
   base::ThreadChecker allocate_gpu_memory_buffer_thread_checker_;
 
+  scoped_refptr<cc::MainThreadTaskRunner> main_thread_task_runner_;
+  scoped_refptr<base::SingleThreadTaskRunner> input_task_runner_;
+
   // Compositor settings
   bool is_gpu_rasterization_enabled_;
   bool is_gpu_rasterization_forced_;