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

chrome/browser/prefs/pref_value_store.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_BROWSER_PREFS_PREF_VALUE_STORE_H_
 #define CHROME_BROWSER_PREFS_PREF_VALUE_STORE_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 154 matching lines @@
   // |callback|. |callback| is called with the set of preferences changed by the
   // policy refresh. |callback| is called on the caller's thread as a Task
   // after RefreshPolicyPrefs has returned.
   void RefreshPolicyPrefs(AfterRefreshCallback* callback);
 
   // Returns true if there are proxy preferences in user-modifiable
   // preference stores (e.g. CommandLinePrefStore, ExtensionPrefStore)
   // that conflict with proxy settings specified by proxy policy.
   bool HasPolicyConflictingUserProxySettings();
 
-      protected:
+  // Replaces the internal link to the extension preferences store and takes
+  // ownership of |extension_prefs|.
+  void ReplaceExtensionPrefStore(PrefStore* extension_prefs);

[Mattias Nissler (ping if slow), 2010/11/19 10:47:40]

Why would you want to do this if you have the accessor below?

[battre (please use the other), 2010/11/19 16:03:18]

Done.

+
+  // Returns a reference to the extension pref store for write access.
+  PrefStore* GetExtensionPrefStore();
+
+ protected:
   // In decreasing order of precedence:
   //   |managed_platform_prefs| contains all managed platform (non-cloud policy)
   //        preference values.
   //   |device_management_prefs| contains all device management (cloud policy)
   //        preference values.
   //   |extension_prefs| contains preference values set by extensions.
   //   |command_line_prefs| contains preference values set by command-line
   //        switches.
   //   |user_prefs| contains all user-set preference values.
   //   |recommended_prefs| contains all recommended (policy) preference values.
@@ skipping 48 matching lines @@
       BrowserThread::ID calling_thread_id,
       PrefStore* new_managed_platform_pref_store,
       PrefStore* new_device_management_pref_store,
       PrefStore* new_recommended_pref_store,
       AfterRefreshCallback* callback);
 
   DISALLOW_COPY_AND_ASSIGN(PrefValueStore);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_VALUE_STORE_H_