Split incognito extension content settings in session-only and persistent.

chrome/browser/extensions/extension_prefs.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_EXTENSIONS_EXTENSION_PREFS_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_
 #pragma once
 
 #include <set>
 #include <string>
@@ skipping 309 matching lines @@
   // Returns true if extension |extension_id| currently controls the
   // preference.
   bool DoesExtensionControlPref(const std::string& extension_id,
                                 const std::string& pref_key,
                                 bool incognito);
 
   // Returns true if there is an extension which controls the preference value
   //  for |pref_key| *and* it is specific to incognito mode.
   bool HasIncognitoPrefValue(const std::string& pref_key);
 
+  // Clears incognito session-only content settings for all extensions.
+  void ClearIncognitoSessionOnlyContentSettings();
+
   // Helper method to acquire the installation time of an extension.
   // Returns base::Time() if the installation time could not be parsed or
   // found.
   base::Time GetInstallTime(const std::string& extension_id) const;
 
   static void RegisterUserPrefs(PrefService* prefs);
 
   ExtensionContentSettingsStore* content_settings_store() {
     return content_settings_store_.get();
   }
@@ skipping 108 matching lines @@
 
   scoped_ptr<ExtensionContentSettingsStore> content_settings_store_;
 
   // The URLs of all of the toolstrips.
   URLList shelf_order_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrefs);
 };
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_