Fixed routing change bug

(1) Change logic of addAudioDeviceCallback() since mJAudioTrack is
likely to be null when this function is called.
(2) Replace add/removeGlobalRef() with JObjectHolder
(3) Replace std::vector with utils/Vector.h

Test: android.media.cts.RoutingTest#test_MediaPlayer2_RoutingChangedCallback with routing change log
Bug: 127314187

Change-Id: I62d9c7600c710b49f0435bd1fc2741d79c928b55
diff --git a/media/libmediaplayer2/include/mediaplayer2/JAudioTrack.h b/media/libmediaplayer2/include/mediaplayer2/JAudioTrack.h
index 87dc889..7381286 100644
--- a/media/libmediaplayer2/include/mediaplayer2/JAudioTrack.h
+++ b/media/libmediaplayer2/include/mediaplayer2/JAudioTrack.h
@@ -17,7 +17,6 @@
 #ifndef ANDROID_JAUDIOTRACK_H
 #define ANDROID_JAUDIOTRACK_H
 
-#include <vector>
 #include <utility>
 #include <jni.h>
 #include <media/AudioResamplerPublic.h>
@@ -25,6 +24,7 @@
 #include <media/VolumeShaper.h>
 #include <system/audio.h>
 #include <utils/Errors.h>
+#include <utils/Vector.h>
 #include <mediaplayer2/JObjectHolder.h>
 #include <media/AudioTimestamp.h>   // It has dependency on audio.h/Errors.h, but doesn't
                                     // include them in it. Therefore it is included here at last.
@@ -405,7 +405,7 @@
      * routingDelegates: backed-up routing delegates
      *
      */
-    void registerRoutingDelegates(std::vector<std::pair<jobject, jobject>>& routingDelegates);
+    void registerRoutingDelegates(Vector<std::pair<jobject, jobject>>& routingDelegates);
 
     /* get listener from RoutingDelegate object
      */
@@ -415,17 +415,6 @@
      */
     static jobject getHandler(const jobject routingDelegateObj);
 
-    /* convert local reference to global reference.
-     */
-    static jobject addGlobalRef(const jobject obj);
-
-    /* erase global reference.
-     *
-     * Returns NO_ERROR if succeeds
-     *         BAD_VALUE if obj is NULL
-     */
-    static status_t removeGlobalRef(const jobject obj);
-
     /*
      * Parameters:
      * map and key
@@ -433,13 +422,13 @@
      * Returns value if key is in the map
      *         nullptr if key is not in the map
      */
-    static jobject findByKey(std::vector<std::pair<jobject, jobject>>& mp, const jobject key);
+    static jobject findByKey(Vector<std::pair<jobject, jobject>>& mp, const jobject key);
 
     /*
      * Parameters:
      * map and key
      */
-    static void eraseByKey(std::vector<std::pair<jobject, jobject>>& mp, const jobject key);
+    static void eraseByKey(Vector<std::pair<jobject, jobject>>& mp, const jobject key);
 
 private:
     audio_output_flags_t mFlags;
diff --git a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2AudioOutput.h b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2AudioOutput.h
index bda4f61..1b3f2dc 100644
--- a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2AudioOutput.h
+++ b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2AudioOutput.h
@@ -22,7 +22,6 @@
 #include <mediaplayer2/JAudioTrack.h>
 #include <mediaplayer2/JObjectHolder.h>
 
-#include <vector>
 #include <utility>
 #include <utils/String16.h>
 #include <utils/Vector.h>
@@ -125,7 +124,7 @@
     audio_output_flags_t    mFlags;
     sp<JObjectHolder>       mPreferredDevice;
     mutable Mutex           mLock;
-    std::vector<std::pair<jobject, jobject>> mRoutingDelegates; // <listener, routingDelegate>
+    Vector<std::pair<jobject, jobject>> mRoutingDelegates; // <listener, routingDelegate>
 
     // static variables below not protected by mutex
     static bool             mIsOnEmulator;