[shadow-dom-tests][wg:webapps-tests] Fixed broken test, removed obsolete test (#630)

The broken test was excercising an undefined area (webkit/blink depends
on inDocument()). Fixed by inserting the shadow host in the document.

View on GitHub: https://github.com/w3c/web-platform-tests/pull/630

Received on Thursday, 13 February 2014 04:40:05 UTC