Allow overriding GoogleLocationSettingsHelper for tests.

chrome/browser/geolocation/geolocation_permission_context_android.cc

 // 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.
 
 #include "chrome/browser/geolocation/geolocation_permission_context_android.h"
 
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/android/google_location_settings_helper.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_thread.h"
@@ skipping 80 matching lines @@
   // back to the UI thread.
   content::BrowserThread::PostTask(
       content::BrowserThread::UI, FROM_HERE, ui_closure);
 }
 
 
 void GeolocationPermissionContextAndroid::InterceptPermissionCheck(
     const BrowserPermissionCallback& callback, bool granted) {
   callback.Run(granted);
 }
+
+void GeolocationPermissionContextAndroid::
+    SetGoogleLocationSettingsHelperForTesting(
+        scoped_ptr<GoogleLocationSettingsHelper> helper) {
+  google_location_settings_helper_ = helper.Pass();
+}