Add duration estimation data to RenderingStats.

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 18f4e18ea96a347d43e7f667f2af1da430c3e038..10d30c5bff61a3c0a91096cfce8dd24802517666 100644
--- a/cc/trees/thread_proxy.cc
+++ b/cc/trees/thread_proxy.cc
@@ -1017,7 +1017,15 @@ void ThreadProxy::ScheduledActionCommit() {
 
   impl().next_frame_is_newly_committed_frame = true;
 
-  impl().timing_history.DidCommit();
+  // Compute the estimate before we add the new duration so we can compare the
+  // estimated duration for this frame to the actual value.
+  base::TimeDelta begin_main_frame_to_commit_duration_estimate =
+      BeginMainFrameToCommitDurationEstimate();
+  base::TimeDelta begin_main_frame_to_commit_duration =
+      impl().timing_history.DidCommit();
+  impl().layer_tree_host_impl->AddBeginMainFrameToCommitDurationEstimate(
+      begin_main_frame_to_commit_duration,
+      begin_main_frame_to_commit_duration_estimate);
 }
 
 void ThreadProxy::ScheduledActionUpdateVisibleTiles() {
@@ -1148,6 +1156,9 @@ DrawResult ThreadProxy::DrawSwapInternal(bool forced_draw) {
                                base::TimeDelta::FromMilliseconds(1),
                                base::TimeDelta::FromMilliseconds(100),
                                50);
+
+    impl().layer_tree_host_impl->AddDrawDurationEstimate(
+        draw_duration, draw_duration_estimate);
   }
 
   DCHECK_NE(INVALID_RESULT, result);
@@ -1444,7 +1455,14 @@ void ThreadProxy::DidActivateSyncTree() {
 
   UpdateBackgroundAnimateTicking();
 
-  impl().timing_history.DidActivateSyncTree();
+  // Compute the estimate before we add the new duration so we can compare the
+  // estimated duration for this frame to the actual value.
+  base::TimeDelta commit_to_activate_duration_estimate =
+      CommitToActivateDurationEstimate();
+  base::TimeDelta commit_to_activate_duration =
+      impl().timing_history.DidActivateSyncTree();
+  impl().layer_tree_host_impl->AddCommitToActivateDurationEstimate(
+      commit_to_activate_duration, commit_to_activate_duration_estimate);
 }
 
 void ThreadProxy::DidManageTiles() {