The script moved from /tools to /build in https://codereview.chromium.org/1418513007 and we haven't noticed due to cached .pyc files. We could add a cleaning of .pyc files similar to https://codereview.chromium.org/1186593003 but I think that's overkill for WebRTC. BUG= R=phoglund@webrtc.org Review URL: https://codereview.webrtc.org/1409353014 . Cr-Commit-Position: refs/heads/master@{#10526}