Add SyzyASan to DEPS

This will make it possible to run our tests under ASan
on Windows.

BUG=2491
TEST=local builds with this DEPS added makes it possible to use
the buildbot code available out-of-the-box.

R=henrika@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2381004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@4950 4adac7df-926f-26a2-2b94-8c16560cd09d
1 file changed