More TSan v2 suppressions for V8 data races:
 - race in TooLateToEnableNow (issue 244755)
 - thread-unsafe static initialization (issue 333871)

BUG=244755,333871
TBR=mstarzinger@chromium.org

Review URL: https://codereview.chromium.org/136883003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@244508 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 244508