Allow overriding GoogleLocationSettingsHelper for tests.

chrome/browser/android/mock_google_location_settings_helper.h

 // Copyright (c) 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_MOCK_GOOGLE_LOCATION_SETTINGS_HELPER_H_
 #define CHROME_BROWSER_ANDROID_MOCK_GOOGLE_LOCATION_SETTINGS_HELPER_H_
 
 #include "chrome/browser/android/google_location_settings_helper.h"
 
 // Mock implementation of GoogleLocationSettingsHelper for unit tests.
 class MockGoogleLocationSettingsHelper : public GoogleLocationSettingsHelper {
  public:
+  MockGoogleLocationSettingsHelper();
+  ~MockGoogleLocationSettingsHelper() override;
+
   static void SetLocationStatus(bool master, bool google_apps);
 
-  virtual bool IsSystemLocationEnabled() override;
+  bool IsSystemLocationEnabled() override;
 
   bool IsMasterLocationSettingEnabled();
   bool IsGoogleAppsLocationSettingEnabled();
 
- protected:
-  MockGoogleLocationSettingsHelper();
-  virtual ~MockGoogleLocationSettingsHelper();
-
  private:
   friend class GoogleLocationSettingsHelper;
 
   static bool master_location_enabled;
   static bool google_apps_location_enabled;
 
   DISALLOW_COPY_AND_ASSIGN(MockGoogleLocationSettingsHelper);
 };
 
 #endif  // CHROME_BROWSER_ANDROID_MOCK_GOOGLE_LOCATION_SETTINGS_HELPER_H_