DevTools: enable two sanity tests (fixed upstream)

BUG=53406

Review URL: http://codereview.chromium.org/3305023

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@59081 0039d316-1c4b-4281-b951-d872f2087c98
  void cancel() {
    cancelled_ = true;
  }

  void cancel() {
    cancelled_ = true;
  }
