ExtensionKey 898 chrome/browser/extensions/menu_manager.cc MenuItem::ExtensionKey::ExtensionKey() : webview_instance_id(0) {} ExtensionKey 49 chrome/browser/extensions/menu_manager.h struct ExtensionKey { ExtensionKey 371 chrome/browser/extensions/menu_manager.h typedef std::map<MenuItem::ExtensionKey, MenuItem::List> MenuItemMap;