Add missing using statements for JNI types.

media/base/android/media_player_listener.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/base/android/media_player_listener.h"
 
 #include "base/android/jni_android.h"
 #include "base/bind.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/single_thread_task_runner.h"
 #include "jni/MediaPlayerListener_jni.h"
 #include "media/base/android/media_player_android.h"
 
 using base::android::AttachCurrentThread;
 using base::android::CheckException;
+using base::android::JavaParamRef;
 using base::android::ScopedJavaLocalRef;
 
 namespace media {
 
 MediaPlayerListener::MediaPlayerListener(
     const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
     base::WeakPtr<MediaPlayerAndroid> media_player)
     : task_runner_(task_runner),
       media_player_(media_player) {
   DCHECK(task_runner_.get());
@@ skipping 68 matching lines @@
     const JavaParamRef<jobject>& /* obj */) {
   task_runner_->PostTask(FROM_HERE, base::Bind(
       &MediaPlayerAndroid::OnMediaInterrupted, media_player_));
 }
 
 bool MediaPlayerListener::RegisterMediaPlayerListener(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }
 
 }  // namespace media