| Index: blimp/client/feature/render_widget_feature.h | 
| diff --git a/blimp/client/feature/render_widget_feature.h b/blimp/client/feature/render_widget_feature.h | 
| index caa417acb814c762c273e87529e0c4ff44744058..e1af3a169af147834cc5e09743d5a77cc62e12b1 100644 | 
| --- a/blimp/client/feature/render_widget_feature.h | 
| +++ b/blimp/client/feature/render_widget_feature.h | 
| @@ -42,6 +42,7 @@ class RenderWidgetFeature : public BlimpMessageProcessor { | 
| // A delegate to be notified of specific RenderWidget related incoming events. | 
| class RenderWidgetFeatureDelegate { | 
| public: | 
| +    virtual ~RenderWidgetFeatureDelegate() {} | 
| virtual void OnRenderWidgetCreated(int render_widget_id) = 0; | 
|  | 
| // Called when the engine's RenderWidget has changed for a particular | 
|  |