Blimp, and other projects, will want to make use of gRPC inside of Chromium. This requires that the interface (cronet_c_for_grpc.h) that is currently used for gRPC be moved to location that is built on all platforms, not just iOS, and to have an implementation of the cronet_engine that works inside of Chromium.
Per conversation with GRPC folks this refactor is going to block updates of Cronet for iOS for at least a few weeks.
In order to unblock updates I'm going to add a temporary shim from old API to new API: https://codereview.chromium.org/2611853002
Comment 1 by bugdroid1@chromium.org
, Oct 5 2016