Re-enabling building on Windows.

This has been fixed now in the GitHub repo.

TEST=grunt build on win workstation and full test run.
BUG=455758
R=kjellander@chromium.org

Review URL: https://codereview.chromium.org/906313002

git-svn-id: http://src.chromium.org/svn/trunk/deps/third_party/webrtc/webrtc.DEPS@293991 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
1 file changed