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
Resurrect WMFDecoderModule::HasAAC() and HasH264(), and use those in MediaKeySystemAccess.cpp to figure out whether we gmp-clearkey can decode, rather than assuming Vista and later is always able to decode, as that's not a valid assumption; Vista may not have the required Platfor Update installed, or we may be on Windows N or KN without the Media Feature Pack. --HG-- extra : commitid : 2QrVAGQ5OJa extra : rebase_source : 8ad6e5c5f87cf2b2489f049543c021723927901a