* 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/api/atom_api_browser_view.cc
v8::Local<v8::Value> unused,
                v8::Local<v8::Context> context,
                void* priv) {
  v8::Isolate* isolate = context->GetIsolate();
  BrowserView::SetConstructor(isolate, base::Bind(&BrowserView::New));
  mate::Dictionary browser_view(
      isolate, BrowserView::GetConstructor(isolate)->GetFunction());
  browser_view.SetMethod("fromId",
                          &mate::TrackableObject<BrowserView>::FromWeakMapID);
  browser_view.SetMethod("getAllViews",
                          &mate::TrackableObject<BrowserView>::GetAll);
  mate::Dictionary dict(isolate, exports);
  dict.Set("BrowserView", browser_view);
}
}  
NODE_BUILTIN_MODULE_CONTEXT_AWARE(atom_browser_browser_view, Initialize)