content: Add RendererScheduler.

content/renderer/render_thread_impl.cc

Index: content/renderer/render_thread_impl.cc
diff --git a/content/renderer/render_thread_impl.cc b/content/renderer/render_thread_impl.cc
index fe6b1a090c195056521911535b98a00344673bf9..9530957f9f77d81439e2368f0946181b30ba2f5f 100644
--- a/content/renderer/render_thread_impl.cc
+++ b/content/renderer/render_thread_impl.cc
@@ -92,6 +92,7 @@
 #include "content/renderer/render_process_impl.h"
 #include "content/renderer/render_view_impl.h"
 #include "content/renderer/renderer_blink_platform_impl.h"
+#include "content/renderer/scheduler/renderer_scheduler.h"
 #include "content/renderer/scheduler_proxy_task_runner.h"
 #include "content/renderer/service_worker/embedded_worker_context_message_filter.h"
 #include "content/renderer/service_worker/embedded_worker_dispatcher.h"
@@ -853,8 +854,7 @@ void RenderThreadImpl::EnsureWebKitInitialized() {
     main_thread_compositor_task_runner_ = base::MessageLoopProxy::current();
   } else {
     main_thread_compositor_task_runner_ =
-        make_scoped_refptr(new SchedulerProxyTaskRunner<
-            &blink::WebSchedulerProxy::postCompositorTask>());
+        blink_platform_impl_->renderer_scheduler()->CompositorTaskRunner();
   }
 
   bool enable = !command_line.HasSwitch(switches::kDisableThreadedCompositing);