* Electron version: 1.8.2
* Operating system: macos 10.13.3

Reproducing repo: https://github.com/ibash/electron-webkit-app-drag

Demonstrates a bug where `-webkit-app-region: drag` causes a browser view in front of it to miss click events. Oddly - it does not prevent hover events.

Steps:
1. Clone https://github.com/ibash/electron-webkit-app-drag, `yarn install`, `yarn start`
2. Click "button1"
3. Click "button2"

Expected:

Clicking button1 or button2 pops up an alert: "button clicked!"

Actual:

Only clicking button2 pops up an alert: "button clicked!"

atom/browser/native_browser_view.h
}
namespace atom {
enum AutoResizeFlags {
  kAutoResizeWidth = 0x1,
  kAutoResizeHeight = 0x2,
};
class NativeBrowserView {
 public:
  virtual ~NativeBrowserView();
  static NativeBrowserView* Create(
      brightray::InspectableWebContentsView* web_contents_view);
  brightray::InspectableWebContentsView* GetInspectableWebContentsView() {
    return web_contents_view_;
  }
  virtual void SetAutoResizeFlags(uint8_t flags) = 0;
  virtual void SetBounds(const gfx::Rect& bounds) = 0;
  virtual void SetBackgroundColor(SkColor color) = 0;
  
  virtual void UpdateDraggableRegions(
    const std::vector<gfx::Rect>& system_drag_exclude_areas) {}
 protected:
  explicit NativeBrowserView(
      brightray::InspectableWebContentsView* web_contents_view);
  brightray::InspectableWebContentsView* web_contents_view_;
 private:
  DISALLOW_COPY_AND_ASSIGN(NativeBrowserView);
};
}  
#endif