Adjust comment following r29182 post-commit feedback.
Adjust comment following r29182 post-commit feedback.

Put now-unused macros back to how they are upstream.

BUG=24911
TEST=none
Review URL: http://codereview.chromium.org/289003

git-svn-id: http://src.chromium.org/svn/trunk/src@29328 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 7acc5084f054a6dcd908ba9fd02bbb64dbe47b11
meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser,meego-tablet-ux/meego-app-browser