In https://chromium-review.googlesource.com/c/509693/ the From keyword was removed. This update the script to match that (we also were no longer using it). BUG=None TBR=ehmaldonado@webrtc.org NOTRY=True Change-Id: I3d8fb9d696ee7677f7d250ecd0e6ff997375034b Reviewed-on: https://chromium-review.googlesource.com/512202 Commit-Queue: Henrik Kjellander <kjellander@chromium.org> Reviewed-by: Henrik Kjellander <kjellander@chromium.org> Cr-Commit-Position: refs/heads/master@{#18227}