Linux x64 - Enable media tests since we have 64-bit ffmpeg now.
Linux x64 - Enable media tests since we have 64-bit ffmpeg now.

Review URL: http://codereview.chromium.org/261038


git-svn-id: http://src.chromium.org/svn/trunk/src@28543 4ff67af0-8c30-449e-8e8b-ad334ec8d88c

Former-commit-id: a1010296755e2cf5e978f805d24c7ecc89e40898
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