| Index: content/renderer/gpu/render_widget_compositor.h | 
| diff --git a/content/renderer/gpu/render_widget_compositor.h b/content/renderer/gpu/render_widget_compositor.h | 
| index faf1d8860acc6bdb125275dd40bb9d59aa3390ff..10740fa01baad286be7d90e30aa240a6f268f7c7 100644 | 
| --- a/content/renderer/gpu/render_widget_compositor.h | 
| +++ b/content/renderer/gpu/render_widget_compositor.h | 
| @@ -48,6 +48,7 @@ class RenderWidgetCompositor : public WebKit::WebLayerTreeView, | 
| void SetOverdrawBottomHeight(float overdraw_bottom_height); | 
| void SetNeedsRedrawRect(gfx::Rect damage_rect); | 
| void SetLatencyInfo(const ui::LatencyInfo& latency_info); | 
| +  int GetLayerTreeId() const; | 
|  | 
| // WebLayerTreeView implementation. | 
| virtual void setSurfaceReady(); | 
|  |