void clearInterval(int handle);

void clearTimeout(int handle);

void close();

void importScripts();

WorkerContextEvents get on();

Database openDatabase(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]);

DatabaseSync openDatabaseSync(String name, String version, String displayName, int estimatedSize, [DatabaseCallback creationCallback]);

int setInterval(TimeoutHandler handler, int timeout);

int setTimeout(TimeoutHandler handler, int timeout);

void webkitRequestFileSystem(int type, int size, [FileSystemCallback successCallback, ErrorCallback errorCallback]);

DOMFileSystemSync webkitRequestFileSystemSync(int type, int size);

EntrySync webkitResolveLocalFileSystemSyncURL(String url);

void webkitResolveLocalFileSystemURL(String url, [EntryCallback successCallback, ErrorCallback errorCallback]);

void $dom_addEventListener(String type, EventListener listener, [bool useCapture]);

bool $dom_dispatchEvent(Event evt);

void $dom_removeEventListener(String type, EventListener listener, [bool useCapture]);