Merge "MPEG4Extractor: use Vector<uint32_t> encryptedsizes" am: 02574db1d1 am: ac3acd2cff

Original change: https://android-review.googlesource.com/c/platform/frameworks/av/+/1475466

Change-Id: I1589f927e8f8059d10b4bdf932406dfa5e0d5d6e