cc: Ensure damage in property tree nodes gets propagated to descendants

cc/trees/property_tree.cc

Index: cc/trees/property_tree.cc
diff --git a/cc/trees/property_tree.cc b/cc/trees/property_tree.cc
index b6be2aa9ed57a3440825f5ef961e82866a35d9e3..f2530fd0dd022d33fdc0cff8cefab04533fd44b0 100644
--- a/cc/trees/property_tree.cc
+++ b/cc/trees/property_tree.cc
@@ -1943,6 +1943,9 @@ void PropertyTrees::PushChangeTrackingTo(PropertyTrees* tree) {
       target_node->data.transform_changed = true;
     }
   }
+  // Ensure that change tracking is updated even if property trees don't have
+  // other reasons to get updated.
+  tree->UpdateChangeTracking();
   tree->full_tree_damaged = full_tree_damaged;
 }