am bfc63c7b: am 336d7dcb: The default AlertDialog allows cancel. But the default JSConfim doesn\'t have a cancel listener. So when user cancel the dialog, we do not wake up the WebCoreThread. The same code is already done for JSPrompt dialog correctly.

Merge commit 'bfc63c7b83160fd3e771e5187d317348e72d6c27' into kraken

* commit 'bfc63c7b83160fd3e771e5187d317348e72d6c27':
  The default AlertDialog allows cancel. But the default