Explicitly include logging.h in a header that assumed it was already getting included.
Explicitly include logging.h in a header that assumed it was already getting included.

TBR=nsylvain@google.com

git-svn-id: http://src.chromium.org/svn/trunk/src@972 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 2b518931d20a17cebc372f4155ed1701548e72c8
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