Fix processing newline on Windows chrome_html_unittests.

BUG=16
TEST=./grit.py unit passes testRemoveUnsupportedScale

Review URL: https://codereview.chromium.org/15132011


git-svn-id: http://grit-i18n.googlecode.com/svn/trunk@122 7262f16d-afe8-6277-6482-052fa10e57b1