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
bool transparent,
    bool painting,
    int frame_rate,
    const OnPaintCallback& callback,
    content::RenderWidgetHost* host,
    OffScreenRenderWidgetHostView* parent_host_view,
    gfx::Size initial_size)
    : content::RenderWidgetHostViewBase(host),
      render_widget_host_(content::RenderWidgetHostImpl::From(host)),
      parent_host_view_(parent_host_view),
      transparent_(transparent),
      callback_(callback),
      frame_rate_(frame_rate),
      size_(initial_size),
      painting_(painting),
      is_showing_(!render_widget_host_->is_hidden()),
      cursor_manager_(new content::CursorManager(this)),
      mouse_wheel_phase_handler_(this),
      weak_ptr_factory_(this) {
  DCHECK(render_widget_host_);
  bool is_guest_view_hack = parent_host_view_ != nullptr;
#if !defined(OS_MACOSX)
  delegated_frame_host_ = std::make_unique<content::DelegatedFrameHost>(
      AllocateFrameSinkId(is_guest_view_hack), this,
      true );
  root_layer_.reset(new ui::Layer(ui::LAYER_SOLID_COLOR));
#endif