Add async BufferedFile and StreamingPacketFile impls am: 463c4af193 am: d6f5c8889b am: 893456fa78

Original change: https://android-review.googlesource.com/c/platform/frameworks/libs/net/+/2525810

Change-Id: I39c8a9cb851b3b543a7dad44d94c7949245b4088
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
tree: 688e4062ff1c48b50cfaa2e0be85527c7d55a961
  1. client-libs/
  2. common/
  3. .gitignore
  4. OWNERS
  5. PREUPLOAD.cfg
  6. TEST_MAPPING