Migrate default geolocation content setting to host content settings map.

chrome/browser/content_settings/content_settings_pref_provider.h

 // Copyright (c) 2011 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_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_
 #define CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_
 #pragma once
 
 // A content settings provider that takes its settings out of the pref service.
 
@@ skipping 52 matching lines @@
 
   // Forces the default settings to be explicitly set instead of themselves
   // being CONTENT_SETTING_DEFAULT.
   void ForceDefaultsToBeExplicit();
 
   // Reads the default settings from the preferences service. If |overwrite| is
   // true and the preference is missing, the local copy will be cleared as well.
   void ReadDefaultSettings(bool overwrite);
 
   void MigrateObsoleteNotificationPref();
+  void MigrateObsoleteGeolocationPref();
 
   // Copies of the pref data, so that we can read it on the IO thread.
   ContentSettings default_content_settings_;
 
   PrefService* prefs_;
 
   // Whether this settings map is for an Incognito session.
   bool is_incognito_;
 
   // Used around accesses to the default_content_settings_ object to guarantee
@@ skipping 118 matching lines @@
   // Used around accesses to the value map objects to guarantee
   // thread safety.
   mutable base::Lock lock_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefProvider);
 };
 
 }  // namespace content_settings
 
 #endif  // CHROME_BROWSER_CONTENT_SETTINGS_CONTENT_SETTINGS_PREF_PROVIDER_H_