Restricting muting on audio disable

- CarAudioService#setIsAudioEnabled now calls setRestrictMuting
- CarVolumeGroupMuting#setRestrictMuting tells the HAL to mute unless
it's a critical CarAudioContext

Bug: 176258537
Test: atest CarVolumeGroupMutingTest
Test: Disable audio and check if things are muted
`adb shell cmd car_service define-power-policy audio_off --disable
AUDIO`
`adb shell cmd car_service define-power-policy audio_on --enable
AUDIO`
    `adb shell cmd car_service apply-power-policy audio_off`
to disable audio. Then checked `adb shell dumpsys car_service
--services
    CarAudioService` to verify muting has been restricted

Change-Id: I62fdccbea7635c7f09d763c5f81cd1d48d4bb63a
3 files changed
tree: 3bcd976ffdc184a67b8ad9be90231adf3ae3bca1
  1. car-admin-ui-lib/
  2. car-internal-lib/
  3. car-lib/
  4. car-maps-placeholder/
  5. car-systemtest-lib/
  6. car-test-lib/
  7. car-usb-handler/
  8. car_product/
  9. cpp/
  10. data/
  11. experimental/
  12. FrameworkPackageStubs/
  13. obd2-lib/
  14. packages/
  15. procfs-inspector/
  16. service/
  17. tests/
  18. tools/
  19. user/
  20. vehicle-hal-support-lib/
  21. .clang-format
  22. .gitignore
  23. Android.mk
  24. CleanSpec.mk
  25. CPPLINT.cfg
  26. OWNERS
  27. PREUPLOAD.cfg
  28. README.md
  29. TEST_MAPPING
README.md

Native (C++) code format is required to be compatible with .clang-format file. Run

git clang-format --style=file --extension='h,cpp,cc' HEAD~

Note that clang-format is not desirable for Android java files. Therefore the command line above is limited to specific extensions.