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/utility/MonotonicCounter.h b/media/liboboe/src/utility/MonotonicCounter.h
index befad21..81d7f89 100644
--- a/media/liboboe/src/utility/MonotonicCounter.h
+++ b/media/liboboe/src/utility/MonotonicCounter.h
@@ -14,8 +14,8 @@
  * limitations under the License.
  */
 
-#ifndef UTILITY_MONOTONICCOUNTER_H
-#define UTILITY_MONOTONICCOUNTER_H
+#ifndef UTILITY_MONOTONIC_COUNTER_H
+#define UTILITY_MONOTONIC_COUNTER_H
 
 #include <stdint.h>
 
@@ -88,4 +88,4 @@
 };
 
 
-#endif //UTILITY_MONOTONICCOUNTER_H
+#endif //UTILITY_MONOTONIC_COUNTER_H