Add a missing comment to a switch I recently added.
Add a missing comment to a switch I recently added.

BUG=63511
TEST=none

TBR=erikkay@chromium.org

Review URL: http://codereview.chromium.org/5460002

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@67888 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser,wistoch/meego-app-browser