- 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/api/atom_api_auto_updater.cc
#include "atom/browser/api/atom_api_auto_updater.h"
#include "base/time/time.h"
#include "atom/browser/browser.h"
#include "atom/browser/native_window.h"
#include "atom/browser/window_list.h"
#include "atom/common/native_mate_converters/callback.h"
#include "atom/common/node_includes.h"
#include "native_mate/dictionary.h"
#include "native_mate/object_template_builder.h"
namespace mate {
template<>
struct Converter<base::Time> {
  static v8::Local<v8::Value> ToV8(v8::Isolate* isolate,
                                   const base::Time& val) {
    v8::MaybeLocal<v8::Value> date = v8::Date::New(
        isolate->GetCurrentContext(), val.ToJsTime());
    if (date.IsEmpty())
      return v8::Null(isolate);
    else
      return date.ToLocalChecked();
  }
};
}  
namespace atom {
namespace api {
AutoUpdater::AutoUpdater(v8::Isolate* isolate) {