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

/cc @brenca @codebytere 
atom/browser/osr/osr_render_widget_host_view.cc
void OffScreenRenderWidgetHostView::SelectionBoundsChanged(
    const ViewHostMsg_SelectionBounds_Params&) {}
uint32_t OffScreenRenderWidgetHostView::GetCaptureSequenceNumber() const {
  return latest_capture_sequence_number_;
}
void OffScreenRenderWidgetHostView::CopyFromSurface(
    const gfx::Rect& src_rect,
    const gfx::Size& output_size,
    base::OnceCallback<void(const SkBitmap&)> callback) {
  GetDelegatedFrameHost()->CopyFromCompositingSurface(src_rect, output_size,
                                                      std::move(callback));
}
void OffScreenRenderWidgetHostView::GetScreenInfo(