R=mithro@mithis.com, mmoss@chromium.org, vadimsh@chromium.org
BUG=405426

Review URL: https://codereview.chromium.org/1498203002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@297850 0039d316-1c4b-4281-b951-d872f2087c98