I spoke with Spot (Tom Callaway), the maintainer of chromium in Fedora, and the issue with chromium-libs-media will be fixed with the next version of Chromium, as chromium-libs will only require the major version to be more than equal. As long as this is promptly updated every major version, no issues should exist. As for this spec file, I'll work on sliming it down so only the necessary parts are compiled.