Add leak suppression for wrongly teared-down V8.

BUG=323149
TBR=benwells@chromium.org

Review URL: https://codereview.chromium.org/85453005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@237103 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 237103