Use rtc::scoped_refptr instead of std::unique_ptr to hold the instance
of OpenSLEngineManager; this makes it safe to share it between
OpenSLESRecorder and OpenSLESPlayer.
Bug: webrtc:10436
Change-Id: Ibd0717e5410020c89a40bfdb05953a02378a6a4b
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/128651
Commit-Queue: Lu Liu <lliuu@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Henrik Andreassson <henrika@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#27253}
c771c805f1