Merge "cronet: Make BidirectionalStream.Callback interface" am: 04de61f9e9

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2473652

Change-Id: I9d71e6c6f0daed2c6dbc054bf1d2b0e2c3ca8068
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>