[not for review] Add Draw entries to window Performance Timeline

cc/layers/layer.cc

Index: cc/layers/layer.cc
diff --git a/cc/layers/layer.cc b/cc/layers/layer.cc
index 82978daa03633a23d52b405414b4be0ead50b08c..f252a854c5efc671dab890851b756091e3a2b1d1 100644
--- a/cc/layers/layer.cc
+++ b/cc/layers/layer.cc
@@ -733,6 +733,14 @@ void Layer::SetTouchEventHandlerRegion(const Region& region) {
   SetNeedsCommit();
 }
 
+void Layer::SetDrawFrameRequestRects(const DrawFrameRequestRectsType& rects) {
+  DCHECK(IsPropertyChangeAllowed());
+  if (draw_frame_request_rects_ == rects)
+    return;
+  draw_frame_request_rects_ = rects;
+  SetNeedsCommit();
+}
+
 void Layer::SetDrawCheckerboardForMissingTiles(bool checkerboard) {
   DCHECK(IsPropertyChangeAllowed());
   if (draw_checkerboard_for_missing_tiles_ == checkerboard)
@@ -884,6 +892,7 @@ void Layer::PushPropertiesTo(LayerImpl* layer) {
   layer->SetHaveScrollEventHandlers(have_scroll_event_handlers_);
   layer->SetNonFastScrollableRegion(non_fast_scrollable_region_);
   layer->SetTouchEventHandlerRegion(touch_event_handler_region_);
+  layer->SetDrawFrameRequestRects(draw_frame_request_rects_);
   layer->SetContentsOpaque(contents_opaque_);
   if (!layer->OpacityIsAnimatingOnImplOnly() && !OpacityIsAnimating())
     layer->SetOpacity(opacity_);