Add DecryptingAudioDecoder.

webkit/media/crypto/ppapi_decryptor.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 "webkit/media/crypto/ppapi_decryptor.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
@@ skipping 171 matching lines @@
         base::Bind(&PpapiDecryptor::DecryptAndDecodeAudio,
                    base::Unretained(this), encrypted, audio_decode_cb));
     return;
   }
 
   DVLOG(1) << "DecryptAndDecodeAudio()";
   // TODO(xhwang): Enable this once PluginInstance is updated.
   // if (!cdm_plugin_->DecryptAndDecodeAudio(encrypted, audio_decode_cb))
   //   audio_decode_cb.Run(kError, NULL);
   NOTIMPLEMENTED();
-  audio_decode_cb.Run(kError, scoped_ptr<AudioBuffers>());
+  audio_decode_cb.Run(kError, AudioBuffers());
 }
 
 void PpapiDecryptor::DecryptAndDecodeVideo(
     const scoped_refptr<media::DecoderBuffer>& encrypted,
     const VideoDecodeCB& video_decode_cb) {
   if (!render_loop_proxy_->BelongsToCurrentThread()) {
     render_loop_proxy_->PostTask(
         FROM_HERE,
         base::Bind(&PpapiDecryptor::DecryptAndDecodeVideo,
                    base::Unretained(this), encrypted, video_decode_cb));
@@ skipping 57 matching lines @@
     if (success)
       video_key_added_cb_ = key_added_cb;
     base::ResetAndReturn(&video_decoder_init_cb_).Run(success);
     return;
   }
 
   NOTREACHED();
 }
 
 }  // namespace webkit_media