Bug 881954 - Generalize test_too_many_elements to run on more than just Ogg audio. r=padenot
Bug 881954 - Only initialize DXVA when we're decoding video. r=padenot
Bug 881954 - Set the thread limit to the idle limit for WMFByteStream's thread pool. This stops the pool from constantly creating and destroying threads when under load, freeing up virtual address space and reducing our thread count. r=padenot