Reinitialize LocalState's CommandLinePrefStore after about_flags updates the command line.

chrome/browser/prefs/testing_pref_store.h

-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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_PREFS_TESTING_PREF_STORE_H_
 #define CHROME_BROWSER_PREFS_TESTING_PREF_STORE_H_
 #pragma once
 
+#include <string>
+
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/observer_list.h"
 #include "chrome/browser/prefs/pref_value_map.h"
 #include "chrome/common/persistent_pref_store.h"
 
 // |TestingPrefStore| is a preference store implementation that allows tests to
 // explicitly manipulate the contents of the store, triggering notifications
 // where appropriate.
 class TestingPrefStore : public PersistentPrefStore {
  public:
   TestingPrefStore();
   virtual ~TestingPrefStore();
 
   // Overriden from PrefStore.
   virtual ReadResult GetValue(const std::string& key,
                               const base::Value** result) const OVERRIDE;
   virtual void AddObserver(PrefStore::Observer* observer) OVERRIDE;
   virtual void RemoveObserver(PrefStore::Observer* observer) OVERRIDE;
+  virtual size_t NumberOfObservers() const OVERRIDE;
   virtual bool IsInitializationComplete() const OVERRIDE;
 
   // PersistentPrefStore overrides:
   virtual ReadResult GetMutableValue(const std::string& key,
                                      base::Value** result) OVERRIDE;
   virtual void ReportValueChanged(const std::string& key) OVERRIDE;
   virtual void SetValue(const std::string& key, base::Value* value) OVERRIDE;
   virtual void SetValueSilently(const std::string& key,
                                 base::Value* value) OVERRIDE;
   virtual void RemoveValue(const std::string& key) OVERRIDE;
@@ skipping 34 matching lines @@
 
   // Whether initialization has been completed.
   bool init_complete_;
 
   ObserverList<PrefStore::Observer, true> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(TestingPrefStore);
 };
 
 #endif  // CHROME_BROWSER_PREFS_TESTING_PREF_STORE_H_