Disabling AppRTC build on win.

https://github.com/webrtc/apprtc/issues/48

BUG=455758
R=kjellander@chromium.org

Review URL: https://codereview.chromium.org/905723002

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/webrtc/webrtc.DEPS@293977 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
1 file changed