The warning is 

> (electron:23955): Gtk-WARNING **: 10:41:01.876: gtk_disable_setlocale() must be called before gtk_init()

Looks like this is caused by gtk_init() being accidentally called twice.

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### Issue Details

* **Electron Version:**
  * 7-0-x, v8.0.0-nightly.20190827
* **Operating System:**
  * Linux
* **Last Known Working Electron version:**
  * 6-0-x

shell/browser/atom_browser_main_parts.cc
PreMainMessageLoopStartCommon();
}
#endif
void AtomBrowserMainParts::PreMainMessageLoopStartCommon() {
#if defined(OS_MACOSX)
  InitializeEmptyApplicationMenu();
#endif
  media::SetLocalizedStringProvider(MediaStringProvider);
}
device::mojom::GeolocationControl*
AtomBrowserMainParts::GetGeolocationControl() {
  if (geolocation_control_)
    return geolocation_control_.get();
  auto request = mojo::MakeRequest(&geolocation_control_);
  if (!content::ServiceManagerConnection::GetForProcess())
    return geolocation_control_.get();
  service_manager::Connector* connector =
      content::ServiceManagerConnection::GetForProcess()->GetConnector();
  connector->BindInterface(device::mojom::kServiceName, std::move(request));
  return geolocation_control_.get();
}
IconManager* AtomBrowserMainParts::GetIconManager() {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);
  if (!icon_manager_.get())
    icon_manager_.reset(new IconManager);
  return icon_manager_.get();
}
}   electron