cc :: Move tracking of layer_property_changed to main thread (2)

cc/trees/property_tree.h

Index: cc/trees/property_tree.h
diff --git a/cc/trees/property_tree.h b/cc/trees/property_tree.h
index dac4c9201c3aa731c05694f4ced8896e92c4dc95..a513ed8f7ede601380ea9038ba5ae78488b5df35 100644
--- a/cc/trees/property_tree.h
+++ b/cc/trees/property_tree.h
@@ -135,6 +135,8 @@ struct CC_EXPORT TransformNodeData {
   // layer scale factor should include the page scale factor.
   bool in_subtree_of_page_scale_layer : 1;
 
+  bool transform_changed : 1;

[ajuma, 2016/02/12 23:57:03]

Please add a comment explaining what this means (e.g., which transform changed,
when it changed, why we need to keep track).

[jaydasika, 2016/02/16 22:30:36]

Done.

+
   // TODO(vollick): will be moved when accelerated effects are implemented.
   float post_local_scale_factor;
 
@@ -474,6 +476,7 @@ class CC_EXPORT TransformTree final : public PropertyTree<TransformNode> {
                                  TransformNode* parent_node);
   void UndoSnapping(TransformNode* node);
   void UpdateSnapping(TransformNode* node);
+  void UpdateTransformChanged(TransformNode* node, TransformNode* parent_node);
   void UpdateNodeAndAncestorsHaveIntegerTranslations(
       TransformNode* node,
       TransformNode* parent_node);