Add some more comments near the *Hack() functions.
Add some more comments near the *Hack() functions.

This will help newer people hacking on the code to understand how
to join the anti-wstring quest.

BUG=24672

Review URL: http://codereview.chromium.org/660082

git-svn-id: dd90618784b6a4b323ea0c23a071cb1c9e6f2ac7@40117 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