Disable another racy HostResolverImplTest under tsan.

BUG=268946
TBR=szym@chromium.org

Review URL: https://codereview.chromium.org/135693002

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244359 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244359