Use link in the doc for MediaSession2Service

Test: build
Change-Id: I3990b7d0b42c9119ab21493aa71bf0ac98abccc5
diff --git a/media/java/android/media/MediaController2.java b/media/java/android/media/MediaController2.java
index f7ce038..887b447 100644
--- a/media/java/android/media/MediaController2.java
+++ b/media/java/android/media/MediaController2.java
@@ -45,7 +45,7 @@
 
 /**
  * Allows an app to interact with an active {@link MediaSession2} or a
- * MediaSession2Service which would provide {@link MediaSession2}. Media buttons and other
+ * {@link MediaSession2Service} which would provide {@link MediaSession2}. Media buttons and other
  * commands can be sent to the session.
  * <p>
  * This API is not generally intended for third party application developers.
@@ -53,7 +53,6 @@
  * <a href="{@docRoot}reference/androidx/media2/package-summary.html">Media2 Library</a>
  * for consistent behavior across all devices.
  */
-// TODO: use @link for MediaSession2Service
 public class MediaController2 implements AutoCloseable {
     static final String TAG = "MediaController2";
     static final boolean DEBUG = Log.isLoggable(TAG, Log.DEBUG);
diff --git a/media/java/android/media/Session2Token.java b/media/java/android/media/Session2Token.java
index 023ee46..eb6344e 100644
--- a/media/java/android/media/Session2Token.java
+++ b/media/java/android/media/Session2Token.java
@@ -35,7 +35,7 @@
 import java.util.Objects;
 
 /**
- * Represents an ongoing {@link MediaSession2} or a MediaSession2Service.
+ * Represents an ongoing {@link MediaSession2} or a {@link MediaSession2Service}.
  * If it's representing a session service, it may not be ongoing.
  * <p>
  * This API is not generally intended for third party application developers.