function keydown(event)
        {
            if (isEnterKey(event)) {
                event.consume();
                commit.call(this);
            } else if (event.keyCode === WebInspector.KeyboardShortcut.Keys.Esc.code || event.keyIdentifier === "U+001B") {
                event.consume();
                finish.call(this);
                this._update();
            }
        }
@this {WebInspector.BlockedURLsPane}
@param {!Event} event