R=laforge
TEST=use drover.py with WebKit repo -- it should work!
BUG=none

Review URL: http://codereview.chromium.org/3368007

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@58844 0039d316-1c4b-4281-b951-d872f2087c98