Hide two audio focus methods.

Change-Id: I53ddf736892cde8edfaffa7d69dd9c234df52efa
diff --git a/api/8.xml b/api/8.xml
index e757db2..9d259f3 100644
--- a/api/8.xml
+++ b/api/8.xml
@@ -80490,19 +80490,6 @@
 <parameter name="volume" type="float">
 </parameter>
 </method>
-<method name="registerAudioFocusListener"
- return="void"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-<parameter name="l" type="android.media.AudioManager.OnAudioFocusChangeListener">
-</parameter>
-</method>
 <method name="registerMediaButtonEventReceiver"
  return="void"
  abstract="false"
@@ -80762,19 +80749,6 @@
  visibility="public"
 >
 </method>
-<method name="unregisterAudioFocusListener"
- return="void"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-<parameter name="l" type="android.media.AudioManager.OnAudioFocusChangeListener">
-</parameter>
-</method>
 <method name="unregisterMediaButtonEventReceiver"
  return="void"
  abstract="false"
diff --git a/api/current.xml b/api/current.xml
index e757db2..9d259f3 100644
--- a/api/current.xml
+++ b/api/current.xml
@@ -80490,19 +80490,6 @@
 <parameter name="volume" type="float">
 </parameter>
 </method>
-<method name="registerAudioFocusListener"
- return="void"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-<parameter name="l" type="android.media.AudioManager.OnAudioFocusChangeListener">
-</parameter>
-</method>
 <method name="registerMediaButtonEventReceiver"
  return="void"
  abstract="false"
@@ -80762,19 +80749,6 @@
  visibility="public"
 >
 </method>
-<method name="unregisterAudioFocusListener"
- return="void"
- abstract="false"
- native="false"
- synchronized="false"
- static="false"
- final="false"
- deprecated="not deprecated"
- visibility="public"
->
-<parameter name="l" type="android.media.AudioManager.OnAudioFocusChangeListener">
-</parameter>
-</method>
 <method name="unregisterMediaButtonEventReceiver"
  return="void"
  abstract="false"
diff --git a/media/java/android/media/AudioManager.java b/media/java/android/media/AudioManager.java
index 5813a42..bbbba74 100644
--- a/media/java/android/media/AudioManager.java
+++ b/media/java/android/media/AudioManager.java
@@ -1382,6 +1382,7 @@
     }
 
     /**
+     * @hide
      * Registers a listener to be called when audio focus changes. Calling this method is optional
      * before calling {@link #requestAudioFocus(OnAudioFocusChangeListener, int, int)}, as it
      * will register the listener as well if it wasn't registered already.
@@ -1397,6 +1398,7 @@
     }
 
     /**
+     * @hide
      * Causes the specified listener to not be called anymore when focus is gained or lost.
      * @param l the listener to unregister.
      */