cc: Adding DidFinishImplFrame to LTHI.

cc/trees/single_thread_proxy.cc

Index: cc/trees/single_thread_proxy.cc
diff --git a/cc/trees/single_thread_proxy.cc b/cc/trees/single_thread_proxy.cc
index 920dc15495abdb7be32b0ca26eb5abfb37e9cbbe..9411f32836eb05354300bf6c6b9f54d48bd33d91 100644
--- a/cc/trees/single_thread_proxy.cc
+++ b/cc/trees/single_thread_proxy.cc
@@ -716,12 +716,6 @@ DrawResult SingleThreadProxy::DoComposite(base::TimeTicks frame_begin_time,
         FROM_HERE_WITH_EXPLICIT_FUNCTION(
             "461509 SingleThreadProxy::DoComposite5"));
     layer_tree_host_impl_->UpdateAnimationState(start_ready_animations);
-    // TODO(robliao): Remove ScopedTracker below once https://crbug.com/461509
-    // is fixed.
-    tracked_objects::ScopedTracker tracking_profile6(
-        FROM_HERE_WITH_EXPLICIT_FUNCTION(
-            "461509 SingleThreadProxy::DoComposite6"));
-    layer_tree_host_impl_->ResetCurrentBeginFrameArgsForNextFrame();
 
     // TODO(robliao): Remove ScopedTracker below once https://crbug.com/461509
     // is fixed.
@@ -967,8 +961,8 @@ base::TimeDelta SingleThreadProxy::CommitToActivateDurationEstimate() {
   return timing_history_.CommitToActivateDurationEstimate();
 }
 
-void SingleThreadProxy::DidBeginImplFrameDeadline() {
-  layer_tree_host_impl_->ResetCurrentBeginFrameArgsForNextFrame();
+void SingleThreadProxy::DidFinishImplFrame() {
+  layer_tree_host_impl_->DidFinishImplFrame();
 }
 
 void SingleThreadProxy::SendBeginFramesToChildren(const BeginFrameArgs& args) {