- Electron version: 1.2.6
- Operating system: osx yosemite

Do the autoUpdater objects on osx and windows have different properties? On windows, when i do `console.log(JSON.stringify(autoUpdater));`
I see the properties `domain`, `_events`, `_eventsCount`, and `updateURL`. However, doing the same thing on osx only allows me to see the properties `_events` and `_eventsCount`. 

I want to access `updateURL` in my code but I'm wondering whether that property is accessible. Maybe I should submit a PR for a `getFeedURL` method?

atom/browser/auto_updater.cc
#include "atom/browser/auto_updater.h"
namespace auto_updater {
Delegate* AutoUpdater::delegate_ = nullptr;
Delegate* AutoUpdater::GetDelegate() {
  return delegate_;
}
void AutoUpdater::SetDelegate(Delegate* delegate) {
  delegate_ = delegate;
}
#if !defined(OS_MACOSX) || defined(MAS_BUILD)
void AutoUpdater::SetFeedURL(const std::string& url,
                             const HeaderMap& requestHeaders) {
}
void AutoUpdater::CheckForUpdates() {
}
void AutoUpdater::QuitAndInstall() {
}
#endif
}