Remove scroll_clip_layer dependency from viewport layer tracking

third_party/WebKit/public/platform/WebLayerTreeView.h

Index: third_party/WebKit/public/platform/WebLayerTreeView.h
diff --git a/third_party/WebKit/public/platform/WebLayerTreeView.h b/third_party/WebKit/public/platform/WebLayerTreeView.h
index 19e128c17a1b67630898daa304a1f389d136dd32..494c896350bfdd7b732d3fe196d23ca957fd8d81 100644
--- a/third_party/WebKit/public/platform/WebLayerTreeView.h
+++ b/third_party/WebKit/public/platform/WebLayerTreeView.h
@@ -139,6 +139,8 @@ class WebLayerTreeView {
   virtual void RegisterViewportLayers(
       const WebLayer* overscroll_elasticity_layer,
       const WebLayer* page_scale_layer,
+      const WebLayer* inner_viewport_container_layer,
+      const WebLayer* outer_viewport_container_layer,
       const WebLayer* inner_viewport_scroll_layer,
       const WebLayer* outer_viewport_scroll_layer) {}
   virtual void ClearViewportLayers() {}