Reset registered events and dispatch runtime.onInstalled to all extensions when

chrome/browser/extensions/extension_prefs.h

 // 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_EXTENSIONS_EXTENSION_PREFS_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_
 
 #include <set>
 #include <string>
 #include <vector>
@@ skipping 251 matching lines @@
 
   // Gets the active permission set for the specified extension. This may
   // differ from the permissions in the manifest due to the optional
   // permissions API. This passes ownership of the set to the caller.
   PermissionSet* GetActivePermissions(const std::string& extension_id);
 
   // Sets the active |permissions| for the extension with |extension_id|.
   void SetActivePermissions(const std::string& extension_id,
                             const PermissionSet* permissions);
 
+  // Returns true if registered events are from this version of Chrome. Else,
+  // clear them, and return false.
+  bool CheckRegisteredEventsUpToDate();
+
   // Returns the list of events that the given extension has registered for.
   std::set<std::string> GetRegisteredEvents(const std::string& extension_id);
   void SetRegisteredEvents(const std::string& extension_id,
                            const std::set<std::string>& events);
 
   // Adds a filter to an event.
   void AddFilterToEvent(const std::string& event_name,
                         const std::string& extension_id,
                         const DictionaryValue* filter);
 
@@ skipping 252 matching lines @@
   // Installs the persistent extension preferences into |prefs_|'s extension
   // pref store. Does nothing if |extensions_disabled| is true.
   void InitPrefStore(bool extensions_disabled);
 
   // Migrates the permissions data in the pref store.
   void MigratePermissions(const ExtensionIds& extension_ids);
 
   // Migrates the disable reasons from a single enum to a bit mask.
   void MigrateDisableReasons(const ExtensionIds& extension_ids);
 
+  // Clears the registered events for event pages.
+  void ClearRegisteredEvents();
+
   // Checks whether there is a state pref for the extension and if so, whether
   // it matches |check_state|.
   bool DoesExtensionHaveState(const std::string& id,
                               Extension::State check_state) const;
 
   // Helper function to Get/Set array of strings from/to prefs.
   ExtensionIds GetExtensionPrefAsVector(const char* pref);
   void SetExtensionPrefFromVector(const char* pref,
                                   const ExtensionIds& extension_ids);
 
@@ skipping 11 matching lines @@
   scoped_ptr<ExtensionSorting> extension_sorting_;
 
   scoped_refptr<ContentSettingsStore> content_settings_store_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionPrefs);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_PREFS_H_