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/binding/OboeServiceDefinitions.h b/media/liboboe/src/binding/OboeServiceDefinitions.h
index ad00fe2..33a192f 100644
--- a/media/liboboe/src/binding/OboeServiceDefinitions.h
+++ b/media/liboboe/src/binding/OboeServiceDefinitions.h
@@ -37,8 +37,7 @@
     PAUSE_STREAM,
     FLUSH_STREAM,
     REGISTER_AUDIO_THREAD,
-    UNREGISTER_AUDIO_THREAD,
-    TICKLE
+    UNREGISTER_AUDIO_THREAD
 };
 
 } // namespace android
@@ -53,8 +52,7 @@
     PAUSE_STREAM,
     FLUSH_STREAM,
     REGISTER_AUDIO_THREAD,
-    UNREGISTER_AUDIO_THREAD,
-    TICKLE
+    UNREGISTER_AUDIO_THREAD
 };
 
 // TODO Expand this to include all the open parameters.