* 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_window.cc
return window_->GetBounds();
}
void BrowserWindow::SetContentBounds(const gfx::Rect& bounds,
                                     mate::Arguments* args) {
  bool animate = false;
  args->GetNext(&animate);
  window_->SetContentBounds(bounds, animate);
}
gfx::Rect BrowserWindow::GetContentBounds() {
  return window_->GetContentBounds();
}
void BrowserWindow::SetSize(int width, int height, mate::Arguments* args) {
  bool animate = false;
  args->GetNext(&animate);
  window_->SetSize(gfx::Size(width, height), animate);
}
std::vector<int> BrowserWindow::GetSize() {
  std::vector<int> result(2);
  gfx::Size size = window_->GetSize();
  result[0] = size.width();
  result[1] = size.height();
  return result;
}
void BrowserWindow::SetContentSize(int width, int height,
                                   mate::Arguments* args) {
  bool animate = false;
  args->GetNext(&animate);
  window_->SetContentSize(gfx::Size(width, height), animate);
}
std::vector<int> BrowserWindow::GetContentSize() {