R=iannucci@chromium.org, agable@chromium.org
BUG=360180

Review URL: https://codereview.chromium.org/228113003

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@262746 0039d316-1c4b-4281-b951-d872f2087c98