Remove obsolete source excludes in base/gfx. The files have been moved to app/gfx/
Remove obsolete source excludes in base/gfx. The files have been moved to app/gfx/

BUG=none
TEST=none
Review URL: http://codereview.chromium.org/273030

git-svn-id: http://src.chromium.org/svn/trunk/src@28784 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: 3f7fde1e4ddc2fa4d8b804ceda5cd2c8e49c25aa
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