Fix for Bug 50726 "Save extension list and "winning" prefs from extensions"

chrome/test/testing_pref_service.h

 // Copyright (c) 2010 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_TEST_TESTING_PREF_SERVICE_H_
 #define CHROME_TEST_TESTING_PREF_SERVICE_H_
 #pragma once
 
 #include "chrome/browser/prefs/pref_service.h"
 
@@ skipping 16 matching lines @@
                           PrefStore* extension_prefs,
                           PrefStore* command_line_prefs,
                           PrefStore* user_prefs,
                           PrefStore* recommended_prefs,
                           PrefStore* default_prefs);
   };
 
   // Create an empty instance.
   TestingPrefService();
 
+  // Create an instance with specific pref stores.
+  TestingPrefService(PrefStore* managed_prefs,
+                     PrefStore* device_management_prefs,
+                     PrefStore* extension_prefs,
+                     PrefStore* command_line_prefs,
+                     PrefStore* user_prefs,
+                     PrefStore* recommended_prefs,
+                     PrefStore* default_prefs);
+
   // Create an instance that has a managed PrefStore and a command- line
   // PrefStore. |managed_platform_provider| contains the provider with which to
   // initialize the managed platform PrefStore. If it is NULL, then a
   // DummyPrefStore will be created. |device_management_provider| contains the
   // provider with which to initialize the device management
   // PrefStore. |command_line| contains the provider with which to initialize
   // the command line PrefStore. If it is NULL then a DummyPrefStore will be
   // created as the command line PrefStore.
   TestingPrefService(
       policy::ConfigurationPolicyProvider* managed_platform_provider,
@@ skipping 52 matching lines @@
   // Pointers to the pref stores our value store uses.
   PrefStore* managed_platform_prefs_;  // weak
   PrefStore* device_management_prefs_;  // weak
   PrefStore* user_prefs_;  // weak
   PrefStore* default_prefs_;  // weak
 
   DISALLOW_COPY_AND_ASSIGN(TestingPrefService);
 };
 
 #endif  // CHROME_TEST_TESTING_PREF_SERVICE_H_