This will let clients that don't use the heavily filtered canned cpplint
check and want to behave more strictly (aka cc/) reuse any common
settings applied to the cpplint module.

R=maruel@chromium.org
BUG=none

Review URL: https://codereview.chromium.org/13866044

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/depot_tools@194264 0039d316-1c4b-4281-b951-d872f2087c98