Fix uninitialized variable if ENABLE_GPU is not set
Fix uninitialized variable if ENABLE_GPU is not set

Review URL: http://codereview.chromium.org/500013

git-svn-id: http://src.chromium.org/svn/trunk/src@34596 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: e90ff3577d1deb6c5ad979a8b42e086b60293eed
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