Merge "Mark TimeUnit as @SystemApi" into lmp-mr1-dev

core/java/android/hardware/hdmi/HdmiTimerRecordSources.java

@@ -183,7 +183,12 @@ public class HdmiTimerRecordSources {
         }
     }
 
-    private static class TimeUnit {
+    /**
+     * Base class for time-related information.
+     * @hide
+     */
+    @SystemApi
+    /* package */ static class TimeUnit {
         /* package */ final int mHour;
         /* package */ final int mMinute;