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;