In file included from external/droidmedia/minimedia.cpp:22:
In file included from frameworks/av/services/camera/libcameraservice/CameraService.h:27:
frameworks/native/include/binder/BinderService.h:41:21: error: allocating an object of abstract class type 'android::FakeAudioPolicyService'
                new SERVICE(), allowIsolated);
                    ^
frameworks/native/include/binder/BinderService.h:49:33: note: in instantiation of member function 'android::BinderService<android::FakeAudioPolicyService>::publish' requested here
    static void instantiate() { publish(); }
                                ^
external/droidmedia/minimedia.cpp:68:29: note: in instantiation of member function 'android::BinderService<android::FakeAudioPolicyService>::instantiate' requested here
    FakeAudioPolicyService::instantiate();
                            ^
frameworks/av/include/media/IAudioPolicyService.h:173:22: note: unimplemented pure virtual method 'listAudioSessions' in 'FakeAudioPolicyService'
    virtual status_t listAudioSessions(audio_stream_type_t streams,
                     ^
3 warnings and 1 error generated.