should be reenabled. cc @felixrieseberg
atom/browser/api/atom_api_web_contents.h
AtomBrowserContext* GetBrowserContext() const;
  uint32_t GetNextRequestId() { return ++request_id_; }
#if defined(ENABLE_OSR)
  OffScreenWebContentsView* GetOffScreenWebContentsView() const;
  OffScreenRenderWidgetHostView* GetOffScreenRenderWidgetHostView() const;
#endif
  
  void OnCursorChange(const content::WebCursor& cursor);
  
  void OnRendererMessage(content::RenderFrameHost* frame_host,
                         const std::string& channel,
                         const base::ListValue& args);
  
  void OnRendererMessageSync(content::RenderFrameHost* frame_host,
                             const std::string& channel,
                             const base::ListValue& args,
                             IPC::Message* message);
  
  void OnRendererMessageTo(content::RenderFrameHost* frame_host,
                           bool send_to_all,
                           int32_t web_contents_id,
                           const std::string& channel,
                           const base::ListValue& args);
  
  
  void OnSetTemporaryZoomLevel(content::RenderFrameHost* frame_host,
                               double level,
                               IPC::Message* reply_msg);