Update PluginInstance for audio support for content decryption.

webkit/media/crypto/ppapi/clear_key_cdm.h

 // 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.
 
 #ifndef WEBKIT_MEDIA_CRYPTO_PPAPI_CLEAR_KEY_CDM_H_
 #define WEBKIT_MEDIA_CRYPTO_PPAPI_CLEAR_KEY_CDM_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 39 matching lines @@
       const cdm::AudioDecoderConfig& audio_decoder_config) OVERRIDE;
   virtual cdm::Status InitializeVideoDecoder(
       const cdm::VideoDecoderConfig& video_decoder_config) OVERRIDE;
   virtual void DeinitializeDecoder(cdm::StreamType decoder_type) OVERRIDE;
   virtual void ResetDecoder(cdm::StreamType decoder_type) OVERRIDE;
   virtual cdm::Status DecryptAndDecodeFrame(
       const cdm::InputBuffer& encrypted_buffer,
       cdm::VideoFrame* video_frame) OVERRIDE;
   virtual cdm::Status DecryptAndDecodeSamples(
       const cdm::InputBuffer& encrypted_buffer,
-      cdm::Buffer* sample_buffer) OVERRIDE;
+      cdm::AudioFrames* audio_frames) OVERRIDE;
 
  private:
   class Client : public media::DecryptorClient {
    public:
     enum Status {
       kKeyAdded,
       kKeyError,
       kKeyMessage,
       kNeedKey
     };
@@ skipping 50 matching lines @@
   cdm::Allocator* const allocator_;
 
 #if defined(CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER)
   cdm::Size video_size_;
 #endif  // CLEAR_KEY_CDM_USE_FAKE_VIDEO_DECODER
 };
 
 }  // namespace webkit_media
 
 #endif  // WEBKIT_MEDIA_CRYPTO_PPAPI_CLEAR_KEY_CDM_H_