Fix for roll_webrtc after SVN support was dropped from depot tools
See also https://codereview.webrtc.org/2425923002

BUG=657332

Review-Url: https://chromiumcodereview.appspot.com/2426343003
Cr-Commit-Position: refs/heads/master@{#426151}
1 file changed