Added warning if GLX version is less than 1.3. Pbuffers need GLX 1.3 and the pixmap fallback for 1.2 does not work on all systems. TEST=try BUG=none
Added warning if GLX version is less than 1.3. Pbuffers need GLX 1.3 and the pixmap fallback for 1.2 does not work on all systems.
TEST=try
BUG=none

Review URL: http://codereview.chromium.org/2382002

git-svn-id: http://src.chromium.org/svn/trunk/src@48538 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: c6bc405e7e41b80858c36da627e37c6e7b5b5d32
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