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

chrome/browser/prefs/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.
 
 // This provides a way to access the application's current preferences.
 
 #ifndef CHROME_BROWSER_PREFS_PREF_SERVICE_H_
 #define CHROME_BROWSER_PREFS_PREF_SERVICE_H_
 #pragma once
 
@@ skipping 207 matching lines @@
   // A helper method to quickly look up a preference.  Returns NULL if the
   // preference is not registered.
   const Preference* FindPreference(const char* pref_name) const;
 
   bool ReadOnly() const;
 
   PrefNotifier* pref_notifier() const { return pref_notifier_.get(); }
 
   PrefValueStore* pref_value_store() const { return pref_value_store_.get(); }
 
+  PrefStore* GetExtensionPrefStore() const;
+
  protected:
   // The PrefNotifier handles registering and notifying preference observers.
   // It is created and owned by this PrefService. Subclasses may access it for
   // unit testing.
   scoped_ptr<PrefNotifier> pref_notifier_;
 
  private:
   // Registration of pref change observers must be done using the
   // PrefChangeRegistrar, which is declared as a friend here to grant it
   // access to the otherwise protected members Add/RemovePrefObserver.
@@ skipping 33 matching lines @@
   // and owned by this PrefService. Subclasses may access it for unit testing.
   scoped_refptr<PrefValueStore> pref_value_store_;
 
   // A set of all the registered Preference objects.
   PreferenceSet prefs_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefService);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_SERVICE_H_