Update Android to use scoped_refptr<T>::get() rather than implicit "operator T*"

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/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "media/base/android/media_player_bridge.h"
 
 // Auto generated jni class from MediaPlayerListener.java.
 // Check base/android/jni_generator/golden_sample_for_tests_jni.h for example.
 #include "jni/MediaPlayerListener_jni.h"
 
 using base::android::AttachCurrentThread;
 using base::android::CheckException;
 using base::android::ScopedJavaLocalRef;
 
 namespace media {
 
 MediaPlayerListener::MediaPlayerListener(
     const scoped_refptr<base::MessageLoopProxy>& message_loop,
     base::WeakPtr<MediaPlayerBridge> media_player)
     : message_loop_(message_loop),
       media_player_(media_player) {
-  DCHECK(message_loop_);
+  DCHECK(message_loop_.get());
   DCHECK(media_player_);
 }
 
 MediaPlayerListener::~MediaPlayerListener() {}
 
 void MediaPlayerListener::CreateMediaPlayerListener(
     jobject context, jobject media_player) {
   JNIEnv* env = AttachCurrentThread();
   CHECK(env);
   j_media_player_listener_.Reset(
@@ skipping 55 matching lines @@
       &MediaPlayerBridge::OnMediaInterrupted, media_player_));
 }
 
 bool MediaPlayerListener::RegisterMediaPlayerListener(JNIEnv* env) {
   bool ret = RegisterNativesImpl(env);
   DCHECK(g_MediaPlayerListener_clazz);
   return ret;
 }
 
 }  // namespace media