commit 27fca676c2809f992575420cf9fe360ae909699b
author Jack He <siyuanh@google.com> Fri May 04 19:18:24 2018 -0700
committer Jack He <siyuanh@google.com> Mon May 14 17:52:48 2018 +0000
tree bde33926ac18a654016cbdb318757c70e5e8e10c
parent bd2375e7ddf42029d5790fd80508fa6e41bba365

SCO: Suspend and resume A2DP before SCO setup and after SCO tear down

* Suspend A2DP:
  - before calling mNativeInterface.connectAudio(device)
  - before call state becomes busy and audio should be connected, as defined by:
    1. numActive + numHeld > 0
    2. Call setup state is not idle, but not incoming
    3. Call state is incoming and in-band ringing is enabled
* Resume A2DP:
  - when mNativeInterface.connectAudio(device) returns false
  - when SCO audio is disconnected and call state is idle as defined by:
    1. numActive + numHeld > 0
    2. Call setup state is not idle

Bug: 74988740
Test: make a hangout call while music is playing
Change-Id: I85672b4e61c91a7db2458600ad3bacfe8d529af1
(cherry picked from commit 47fa7f7ba376a2a9724504b9b597699ac20fb19b)