Add WebKitTools/Scripts and WebKitTools/simplejson to the DEPS file since we're

moving the python code upstream.

  R=victorw@chromium.org
  BUG=none
  TEST=none

Review URL: http://codereview.chromium.org/582026

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@38437 0039d316-1c4b-4281-b951-d872f2087c98