Make GetApplicationContext return a JavaRef.

media/base/android/media_player_listener.h

Index: media/base/android/media_player_listener.h
diff --git a/media/base/android/media_player_listener.h b/media/base/android/media_player_listener.h
index 6d15c63d1fe7687dd26a8be88d4444747b144856..844475bff4ab14cae49434c007806ef1c0783f1d 100644
--- a/media/base/android/media_player_listener.h
+++ b/media/base/android/media_player_listener.h
@@ -30,33 +30,37 @@ class MediaPlayerListener {
   MediaPlayerListener(
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       base::WeakPtr<MediaPlayerAndroid> media_player);
- virtual ~MediaPlayerListener();
+  virtual ~MediaPlayerListener();
 
   // Called by the Java MediaPlayerListener and mirrored to corresponding
   // callbacks.
- void OnMediaError(JNIEnv* /* env */,
-                   const base::android::JavaParamRef<jobject>& /* obj */,
-                   jint error_type);
- void OnVideoSizeChanged(JNIEnv* /* env */,
+  void OnMediaError(JNIEnv* /* env */,
+                    const base::android::JavaParamRef<jobject>& /* obj */,
+                    jint error_type);
+  void OnVideoSizeChanged(JNIEnv* /* env */,
+                          const base::android::JavaParamRef<jobject>& /* obj */,
+                          jint width,
+                          jint height);
+  void OnBufferingUpdate(JNIEnv* /* env */,
                          const base::android::JavaParamRef<jobject>& /* obj */,
-                         jint width,
-                         jint height);
- void OnBufferingUpdate(JNIEnv* /* env */,
-                        const base::android::JavaParamRef<jobject>& /* obj */,
-                        jint percent);
- void OnPlaybackComplete(JNIEnv* /* env */,
-                         const base::android::JavaParamRef<jobject>& /* obj */);
- void OnSeekComplete(JNIEnv* /* env */,
-                     const base::android::JavaParamRef<jobject>& /* obj */);
- void OnMediaPrepared(JNIEnv* /* env */,
+                         jint percent);
+  void OnPlaybackComplete(
+      JNIEnv* /* env */,
+      const base::android::JavaParamRef<jobject>& /* obj */);
+  void OnSeekComplete(JNIEnv* /* env */,
                       const base::android::JavaParamRef<jobject>& /* obj */);
- void OnMediaInterrupted(JNIEnv* /* env */,
-                         const base::android::JavaParamRef<jobject>& /* obj */);
+  void OnMediaPrepared(JNIEnv* /* env */,
+                       const base::android::JavaParamRef<jobject>& /* obj */);
+  void OnMediaInterrupted(
+      JNIEnv* /* env */,
+      const base::android::JavaParamRef<jobject>& /* obj */);
 
   // Create a Java MediaPlayerListener object and listens to all the media
   // related events from system and |media_player|. If |media_player| is NULL,
   // this class only listens to system events.
-  void CreateMediaPlayerListener(jobject context, jobject media_player);
+  void CreateMediaPlayerListener(
+      const base::android::JavaRef<jobject>& context,
+      const base::android::JavaRef<jobject>& media_player);
   void ReleaseMediaPlayerListenerResources();
 
   // Register MediaPlayerListener in the system library loader.