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

/cc @brenca @codebytere 
atom/browser/osr/osr_web_contents_view.cc
gfx::NativeView context) {}
content::RenderWidgetHostViewBase*
OffScreenWebContentsView::CreateViewForWidget(
    content::RenderWidgetHost* render_widget_host,
    bool is_guest_view_hack) {
  if (render_widget_host->GetView()) {
    return static_cast<content::RenderWidgetHostViewBase*>(
        render_widget_host->GetView());
  }
  return new OffScreenRenderWidgetHostView(
      transparent_, painting_, GetFrameRate(), callback_, render_widget_host,
      nullptr, GetSize());
}
content::RenderWidgetHostViewBase*
OffScreenWebContentsView::CreateViewForPopupWidget(
    content::RenderWidgetHost* render_widget_host) {
  content::WebContentsImpl* web_contents_impl =
      static_cast<content::WebContentsImpl*>(web_contents_);
  OffScreenRenderWidgetHostView* view =
      static_cast<OffScreenRenderWidgetHostView*>(
          web_contents_impl->GetOuterWebContents()
              ? web_contents_impl->GetOuterWebContents()
                    ->GetRenderWidgetHostView()
              : web_contents_impl->GetRenderWidgetHostView());
  return new OffScreenRenderWidgetHostView(transparent_, true,
                                           view->GetFrameRate(), callback_,
                                           render_widget_host, view, GetSize());
}
void OffScreenWebContentsView::SetPageTitle(const base::string16& title) {}