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

chrome/browser/prefs/pref_value_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_PREF_VALUE_STORE_H_
 #define CHROME_BROWSER_PREFS_PREF_VALUE_STORE_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 86 matching lines @@
   bool PrefValueFromDefaultStore(const char* name) const;
 
   // Check whether a Preference value is modifiable by the user, i.e. whether
   // there is no higher-priority source controlling it.
   bool PrefValueUserModifiable(const char* name) const;
 
   // Check whether a Preference value is modifiable by an extension, i.e.
   // whether there is no higher-priority source controlling it.
   bool PrefValueExtensionModifiable(const char* name) const;
 
+  // Update the command line PrefStore with |command_line_prefs|.
+  void UpdateCommandLinePrefStore(PrefStore* command_line_prefs);
+
  private:
   // PrefStores must be listed here in order from highest to lowest priority.
   //   MANAGED_PLATFORM contains all managed preference values that are
   //       provided by a platform-specific policy mechanism (e.g. Windows
   //       Group Policy).
   //   MANAGED_CLOUD contains all managed preference values supplied
   //       by the device management server (cloud policy).
   //   EXTENSION contains preference values set by extensions.
   //   COMMAND_LINE contains preference values set by command-line switches.
   //   USER contains all user-set preference values.
@@ skipping 129 matching lines @@
   // A mapping of preference names to their registered types.
   PrefTypeMap pref_types_;
 
   // True if not all of the PrefStores were initialized successfully.
   bool initialization_failed_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefValueStore);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_VALUE_STORE_H_