TestExpectations update for complext text on Windows XP.

Mark fast/text/international/plane2.html and complex-text-space-only-
glyphpage.html as failing on XP.

TBR=jsbell@chromium.org
BUG=

Review URL: https://codereview.chromium.org/26471005

git-svn-id: svn://svn.chromium.org/blink/trunk@159127 bbb929c8-8fbe-4397-9dbb-9b2b20218538