@Override
 protected void updateSceneLayer(
     Rect viewport,
     Rect contentViewport,
     LayerTitleCache layerTitleCache,
     TabContentManager tabContentManager,
     ResourceManager resourceManager,
     ChromeFullscreenManager fullscreenManager) {
   super.updateSceneLayer(
       viewport,
       contentViewport,
       layerTitleCache,
       tabContentManager,
       resourceManager,
       fullscreenManager);
   assert mTabListSceneLayer != null;
   mTabListSceneLayer.pushLayers(
       getContext(),
       viewport,
       contentViewport,
       this,
       layerTitleCache,
       tabContentManager,
       resourceManager);
 }