OboeAudioService: add thread to service for passing timestamps

Cleanup several TODOs.

Test: test_aaudio in CTS
Change-Id: I7fc956b6a21cbb592f98e1e5a8f43ebd6926d796
Signed-off-by: Phil Burk <philburk@google.com>
diff --git a/media/liboboe/src/legacy/AudioStreamTrack.h b/media/liboboe/src/legacy/AudioStreamTrack.h
index 8c40884..0c41331 100644
--- a/media/liboboe/src/legacy/AudioStreamTrack.h
+++ b/media/liboboe/src/legacy/AudioStreamTrack.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef LEGACY_AUDIOSTREAMTRACK_H
-#define LEGACY_AUDIOSTREAMTRACK_H
+#ifndef LEGACY_AUDIO_STREAM_TRACK_H
+#define LEGACY_AUDIO_STREAM_TRACK_H
 
 #include <media/AudioTrack.h>
 #include <oboe/OboeAudio.h>
@@ -75,4 +75,4 @@
 
 } /* namespace oboe */
 
-#endif /* LEGACY_AUDIOSTREAMTRACK_H */
+#endif /* LEGACY_AUDIO_STREAM_TRACK_H */