cc: Remove FakeThread, use SingleThreadTaskRunner in scheduling classes.

cc/trees/thread_proxy.cc

Index: cc/trees/thread_proxy.cc
diff --git a/cc/trees/thread_proxy.cc b/cc/trees/thread_proxy.cc
index 6a96c183dbe8e63b207ac7672c8309d70fb831f6..d65ba4fa56868c783fc52d3397c357c5e37ad7bf 100644
--- a/cc/trees/thread_proxy.cc
+++ b/cc/trees/thread_proxy.cc
@@ -801,7 +801,7 @@ void ThreadProxy::StartCommitOnImplThread(
     current_resource_update_controller_on_impl_thread_ =
         ResourceUpdateController::Create(
             this,
-            Proxy::ImplThread(),
+            Proxy::ImplThread()->TaskRunner(),
             queue.Pass(),
             layer_tree_host_impl_->resource_provider());
     current_resource_update_controller_on_impl_thread_->PerformMoreUpdates(
@@ -1168,10 +1168,11 @@ void ThreadProxy::InitializeImplOnImplThread(CompletionEvent* completion) {
     } else {
       frame_rate_controller.reset(
           new FrameRateController(DelayBasedTimeSource::Create(
-              display_refresh_interval, Proxy::ImplThread())));
+              display_refresh_interval, Proxy::ImplThread()->TaskRunner())));
     }
   } else {
-    frame_rate_controller.reset(new FrameRateController(Proxy::ImplThread()));
+    frame_rate_controller.reset(
+        new FrameRateController(Proxy::ImplThread()->TaskRunner()));
   }
   const LayerTreeSettings& settings = layer_tree_host_->settings();
   SchedulerSettings scheduler_settings;