cc: Clear always_use_active_tree_opacity_effect_ids

cc/trees/property_tree_builder.cc

Index: cc/trees/property_tree_builder.cc
diff --git a/cc/trees/property_tree_builder.cc b/cc/trees/property_tree_builder.cc
index ba8b1b89face876004b002cef688ac108e7ba254..bd824ed126629bed7b54ee875658d12b23e361d5 100644
--- a/cc/trees/property_tree_builder.cc
+++ b/cc/trees/property_tree_builder.cc
@@ -1187,6 +1187,8 @@ void BuildPropertyTreesTopLevelInternal(
   data_for_recursion.property_trees->effect_id_to_index_map.clear();
   data_for_recursion.property_trees->clip_id_to_index_map.clear();
   data_for_recursion.property_trees->scroll_id_to_index_map.clear();
+  data_for_recursion.property_trees->always_use_active_tree_opacity_effect_ids
+      .clear();
 
   ClipNode root_clip;
   root_clip.data.resets_clip = true;