Fix uninitialized variable warning on Windows.

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk@1822 5089003a-bbd8-11dd-ad1f-f1f9622dbc98
Add patch_udpater.py support for added files.

git-svn-id: http://chromiumembedded.googlecode.com/svn/trunk@1823 5089003a-bbd8-11dd-ad1f-f1f9622dbc98