R=benhenry@google.com, agable@chromium.org, benhenry@chromium.org
BUG=609891

Review URL: https://codereview.chromium.org/1981143002 .

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@300608 0039d316-1c4b-4281-b951-d872f2087c98