1 files changed, 4 insertions, 0 deletions
diff --git a/cc/trees/layer_tree_impl.h b/cc/trees/layer_tree_impl.h
index 5ee9c46..4681fc1 100644
--- a/cc/trees/layer_tree_impl.h
+++ b/cc/trees/layer_tree_impl.h
@@ -197,6 +197,9 @@ class CC_EXPORT LayerTreeImpl {
   void DidUpdateScroll();
   void DidEndScroll();
 
+  void SetRootLayerScrollOffsetDelegate(
+      LayerScrollOffsetDelegate* root_layer_scroll_offset_delegate);
+
   void SetLatencyInfo(const LatencyInfo& latency_info);
   const LatencyInfo& GetLatencyInfo();
   void ClearLatencyInfo();
@@ -222,6 +225,7 @@ class CC_EXPORT LayerTreeImpl {
   HeadsUpDisplayLayerImpl* hud_layer_;
   LayerImpl* root_scroll_layer_;
   LayerImpl* currently_scrolling_layer_;
+  LayerScrollOffsetDelegate* root_layer_scroll_offset_delegate_;
   SkColor background_color_;
   bool has_transparent_background_;