Allow overriding GoogleLocationSettingsHelper for tests.

chrome/browser/android/google_location_settings_helper.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_ANDROID_GOOGLE_LOCATION_SETTINGS_HELPER_H_
 #define CHROME_BROWSER_ANDROID_GOOGLE_LOCATION_SETTINGS_HELPER_H_
 
 #include "base/values.h"
 
 // This class is needed to fetch the current system location
 // setting and update the infobar button label based on that information i.e,
 // display "Allow" if google apps setting is set as enabled else, display
 // "Settings" with a link to open the system location settings activity.
 class GoogleLocationSettingsHelper {
  public:
   virtual ~GoogleLocationSettingsHelper() {}
 
+  // TODO(newt): remove this method once LocationSettings is all upstreamed.
   static GoogleLocationSettingsHelper* Create();
 
   virtual bool IsSystemLocationEnabled() = 0;
 
  protected:
   GoogleLocationSettingsHelper() {}
 
 
  private:
 
   DISALLOW_COPY_AND_ASSIGN(GoogleLocationSettingsHelper);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_GOOGLE_LOCATION_SETTINGS_HELPER_H_