cc: Move tracking of layer_property_changed to main thread (3)

cc/layers/layer_impl.cc

Index: cc/layers/layer_impl.cc
diff --git a/cc/layers/layer_impl.cc b/cc/layers/layer_impl.cc
index a938515c011eda9e9eddc741a310fe279a8ebcaa..a96ff3c9a9efe4d463b5fec2f4909e69277462fd 100644
--- a/cc/layers/layer_impl.cc
+++ b/cc/layers/layer_impl.cc
@@ -689,7 +689,6 @@ base::DictionaryValue* LayerImpl::LayerTreeAsJson() const {
 void LayerImpl::SetStackingOrderChanged(bool stacking_order_changed) {
   if (stacking_order_changed) {
     stacking_order_changed_ = true;

[ajuma, 2016/02/22 15:54:40]

I believe stacking_order_changed_ exists purely for the sake of damage tracking,
so if we're now tracking the change on the main thread, I think
LayerImpl::stacking_order_changed_ can be removed altogether.

[jaydasika, 2016/02/22 18:46:52]

Done.

-    NoteLayerPropertyChangedForSubtree();
   }
 }
 
@@ -1269,7 +1268,6 @@ void LayerImpl::SetTransformAndInvertibility(const gfx::Transform& transform,
   }
   transform_ = transform;
   transform_is_invertible_ = transform_is_invertible;
-  NoteLayerPropertyChangedForSubtree();
 }
 
 bool LayerImpl::TransformIsAnimating() const {