media: Replace DecryptorReadyCB with CdmReadyCB.

media/filters/decrypting_audio_decoder.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 MEDIA_FILTERS_DECRYPTING_AUDIO_DECODER_H_
 #define MEDIA_FILTERS_DECRYPTING_AUDIO_DECODER_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "media/base/audio_decoder.h"
+#include "media/base/cdm_context.h"
 #include "media/base/decryptor.h"
 #include "media/base/demuxer_stream.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 
 class AudioTimestampHelper;
 class DecoderBuffer;
 class Decryptor;
 class MediaLog;
 
 // Decryptor-based AudioDecoder implementation that can decrypt and decode
 // encrypted audio buffers and return decrypted and decompressed audio frames.
 // All public APIs and callbacks are trampolined to the |task_runner_| so
 // that no locks are required for thread safety.
 class MEDIA_EXPORT DecryptingAudioDecoder : public AudioDecoder {
  public:
   DecryptingAudioDecoder(
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       const scoped_refptr<MediaLog>& media_log,
-      const SetDecryptorReadyCB& set_decryptor_ready_cb,
+      const SetCdmReadyCB& set_cdm_ready_cb,
       const base::Closure& waiting_for_decryption_key_cb);
   ~DecryptingAudioDecoder() override;
 
   // AudioDecoder implementation.
   std::string GetDisplayName() const override;
   void Initialize(const AudioDecoderConfig& config,
                   const InitCB& init_cb,
                   const OutputCB& output_cb) override;
   void Decode(const scoped_refptr<DecoderBuffer>& buffer,
               const DecodeCB& decode_cb) override;
   void Reset(const base::Closure& closure) override;
 
  private:
   // For a detailed state diagram please see this link: http://goo.gl/8jAok
   // TODO(xhwang): Add a ASCII state diagram in this file after this class
   // stabilizes.
   // TODO(xhwang): Update this diagram for DecryptingAudioDecoder.
   enum State {
     kUninitialized = 0,
     kDecryptorRequested,
     kPendingDecoderInit,
     kIdle,
     kPendingDecode,
     kWaitingForKey,
     kDecodeFinished,
     kError
   };
 
-  // Callback for DecryptorHost::RequestDecryptor(). |decryptor_attached_cb| is
-  // called when the decryptor has been completely attached to the pipeline.
-  void SetDecryptor(Decryptor* decryptor,
-                    const DecryptorAttachedCB& decryptor_attached_cb);
+  // Callback to set CDM. |cdm_attached_cb| is called when the decryptor in the
+  // CDM has been completely attached to the pipeline.
+  void SetCdm(CdmContext* cdm_context, const CdmAttachedCB& cdm_attached_cb);
 
   // Initializes the audio decoder on the |decryptor_| with |config_|.
   void InitializeDecoder();
 
   // Callback for Decryptor::InitializeAudioDecoder() during initialization.
   void FinishInitialization(bool success);
 
   void DecodePendingBuffer();
 
   // Callback for Decryptor::DecryptAndDecodeAudio().
@@ skipping 19 matching lines @@
 
   InitCB init_cb_;
   OutputCB output_cb_;
   DecodeCB decode_cb_;
   base::Closure reset_cb_;
   base::Closure waiting_for_decryption_key_cb_;
 
   // The current decoder configuration.
   AudioDecoderConfig config_;
 
-  // Callback to request/cancel decryptor creation notification.
-  SetDecryptorReadyCB set_decryptor_ready_cb_;
+  // Callback to request/cancel CDM ready notification.
+  SetCdmReadyCB set_cdm_ready_cb_;
 
   Decryptor* decryptor_;
 
   // The buffer that needs decrypting/decoding.
   scoped_refptr<media::DecoderBuffer> pending_buffer_to_decode_;
 
   // Indicates the situation where new key is added during pending decode
   // (in other words, this variable can only be set in state kPendingDecode).
   // If this variable is true and kNoKey is returned then we need to try
   // decrypting/decoding again in case the newly added key is the correct
   // decryption key.
   bool key_added_while_decode_pending_;
 
   scoped_ptr<AudioTimestampHelper> timestamp_helper_;
 
   base::WeakPtr<DecryptingAudioDecoder> weak_this_;
   base::WeakPtrFactory<DecryptingAudioDecoder> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DecryptingAudioDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECRYPTING_AUDIO_DECODER_H_