Gardening: jquery/manipulation.html timeout on win bots

BUG=24182
TEST=
TBR=zmo@chromium.org

Review URL: https://codereview.chromium.org/203723004

git-svn-id: svn://svn.chromium.org/blink/trunk@169477 bbb929c8-8fbe-4397-9dbb-9b2b20218538