Add myself to Source/web/OWNERS

This will make me a more effective reviewer of API cleanups in Source/core.

R=abarth@chromium.org

Review URL: https://codereview.chromium.org/35603002

git-svn-id: svn://svn.chromium.org/blink/trunk@160241 bbb929c8-8fbe-4397-9dbb-9b2b20218538