cc: Save correct frame begin time to FrameRateCounter

cc/layer_tree_host.cc

Index: cc/layer_tree_host.cc
diff --git a/cc/layer_tree_host.cc b/cc/layer_tree_host.cc
index e22698635ed14a60b99a8d2eaeb5c276b6f260a1..f8a97f5bb6b0a313cc3a016703b492e0a824ddb9 100644
--- a/cc/layer_tree_host.cc
+++ b/cc/layer_tree_host.cc
@@ -524,9 +524,10 @@ void LayerTreeHost::StartPageScaleAnimation(gfx::Vector2d target_offset,
   proxy_->StartPageScaleAnimation(target_offset, use_anchor, scale, duration);
 }
 
-void LayerTreeHost::Composite() {
+void LayerTreeHost::Composite(base::TimeTicks frame_begin_time) {
   if (!proxy_->HasImplThread())
-    static_cast<SingleThreadProxy*>(proxy_.get())->CompositeImmediately();
+    static_cast<SingleThreadProxy*>(proxy_.get())->CompositeImmediately(
+        frame_begin_time);
   else
     SetNeedsCommit();
 }