NOTE: As of August 2016, Chromium is included in the Fedora Repositories. If you were using the old Chromium http://copr.fedoraproject.org/coprs/spot/chromium/[Copr] repository, upgrade your Chromium.
Fedora's Chromium package does not support h264, mp3, or aac because of legal concerns. It is built to support the *widevine* plugin (but does not include it).
Chromium is upstream for Google Chrome. Fedora does not include Google Chrome because it is a proprietary product and bundles other proprietary software, such as Adobe Flash plugin. However, Google does maintain a DNF or YUM repository for Fedora at link:https://www.google.com/chrome/[google.com/chrome]. The given link also includes downloadable RPMs that you can use to install Chrome.