| Index: components/mus/surfaces/top_level_display_client.h
 | 
| diff --git a/components/mus/surfaces/top_level_display_client.h b/components/mus/surfaces/top_level_display_client.h
 | 
| index 0b58da119fb62cb2c4367408e5840f5e7166772a..f66999c71061a89b814fe256bcc73daf6c463aa2 100644
 | 
| --- a/components/mus/surfaces/top_level_display_client.h
 | 
| +++ b/components/mus/surfaces/top_level_display_client.h
 | 
| @@ -56,6 +56,8 @@ class TopLevelDisplayClient : public cc::DisplayClient,
 | 
|  
 | 
|    // SurfaceFactoryClient implementation.
 | 
|    void ReturnResources(const cc::ReturnedResourceArray& resources) override;
 | 
| +  void SetBeginFrameSource(cc::SurfaceId surface_id,
 | 
| +                           cc::BeginFrameSource* begin_frame_source) override;
 | 
|  
 | 
|    scoped_refptr<SurfacesState> surfaces_state_;
 | 
|    cc::SurfaceFactory factory_;
 | 
| 
 |