Fix ANRs due to Widevine DRM plugin sniff taking too long.

Add a Widevine-specific format sniffer to avoid having to
refetch data from the remote server.

Change-Id: I5fdb21fe7a0d6e74f2a6f06e6fbf8070b068ac60
related-to-bug: 5725548
5 files changed
tree: 8bf163231b5a4d481b9f17375ab0967727474d11
  1. camera/
  2. cmds/
  3. drm/
  4. include/
  5. media/
  6. services/