Got disabled in chromium 71 upgrade https://github.com/electron/electron/commit/798b2a3ffd55c477af6258f0afb71000c9f8ecde

/cc @brenca @codebytere 
atom/browser/osr/osr_render_widget_host_view.h
int DelegatedFrameHostGetGpuMemoryBufferClientId(void) const;
  ui::Layer* DelegatedFrameHostGetLayer(void) const override;
  bool DelegatedFrameHostIsVisible(void) const override;
  SkColor DelegatedFrameHostGetGutterColor() const override;
  void OnFirstSurfaceActivation(const viz::SurfaceInfo& surface_info) override;
  void OnBeginFrame(base::TimeTicks frame_time) override;
  void OnFrameTokenChanged(uint32_t frame_token) override;
#endif  
  const viz::LocalSurfaceId& GetLocalSurfaceId() const override;
  const viz::FrameSinkId& GetFrameSinkId() const override;
  void DidNavigate() override;
  bool TransformPointToLocalCoordSpaceLegacy(
      const gfx::PointF& point,
      const viz::SurfaceId& original_surface,
      gfx::PointF* transformed_point) override;
  bool TransformPointToCoordSpaceForView(
      const gfx::PointF& point,
      RenderWidgetHostViewBase* target_view,
      gfx::PointF* transformed_point,
      viz::EventSource source = viz::EventSource::ANY) override;
  
  std::unique_ptr<viz::SoftwareOutputDevice> CreateSoftwareOutputDevice(
      ui::Compositor* compositor) override;
  bool InstallTransparency();
  void OnBeginFrameTimerTick();
  void SendBeginFrame(base::TimeTicks frame_time, base::TimeDelta vsync_period);
#if defined(OS_MACOSX)
  void CreatePlatformWidget(bool is_guest_view_hack);
  void DestroyPlatformWidget();
  SkColor last_frame_root_background_color() const {