media: Remove SetCdmReadyCB and CdmReadyCB (part 1).

media/filters/decoder_stream.h

 // Copyright 2014 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_DECODER_STREAM_H_
 #define MEDIA_FILTERS_DECODER_STREAM_H_
 
 #include <list>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "media/base/audio_decoder.h"
-#include "media/base/cdm_context.h"
 #include "media/base/demuxer_stream.h"
 #include "media/base/media_export.h"
 #include "media/base/media_log.h"
 #include "media/base/moving_average.h"
 #include "media/base/pipeline_status.h"
 #include "media/base/timestamp_constants.h"
 #include "media/filters/decoder_selector.h"
 #include "media/filters/decoder_stream_traits.h"
 
 namespace base {
 class SingleThreadTaskRunner;
 }
 
 namespace media {
 
+class CdmContext;
 class DecryptingDemuxerStream;
 
 // Wraps a DemuxerStream and a list of Decoders and provides decoded
 // output to its client (e.g. Audio/VideoRendererImpl).
 template<DemuxerStream::Type StreamType>
 class MEDIA_EXPORT DecoderStream {
  public:
   typedef DecoderStreamTraits<StreamType> StreamTraits;
   typedef typename StreamTraits::DecoderType Decoder;
   typedef typename StreamTraits::OutputType Output;
@@ skipping 16 matching lines @@
       const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
       ScopedVector<Decoder> decoders,
       const scoped_refptr<MediaLog>& media_log);
   virtual ~DecoderStream();
 
   // Returns the string representation of the StreamType for logging purpose.
   std::string GetStreamTypeString();
 
   // Initializes the DecoderStream and returns the initialization result
   // through |init_cb|. Note that |init_cb| is always called asynchronously.
+  // |cdm_context| can be used to handle encrypted stream. Can be null if the
+  // stream is not encrypted.
   void Initialize(DemuxerStream* stream,
                   const InitCB& init_cb,
-                  const SetCdmReadyCB& set_cdm_ready_cb,
+                  CdmContext* cdm_context,
                   const StatisticsCB& statistics_cb,
                   const base::Closure& waiting_for_decryption_key_cb);
 
   // Reads a decoded Output and returns it via the |read_cb|. Note that
   // |read_cb| is always called asynchronously. This method should only be
   // called after initialization has succeeded and must not be called during
   // pending Reset().
   void Read(const ReadCB& read_cb);
 
   // Resets the decoder, flushes all decoded outputs and/or internal buffers,
@@ skipping 45 matching lines @@
     STATE_UNINITIALIZED,
     STATE_INITIALIZING,
     STATE_NORMAL,  // Includes idle, pending decoder decode/reset.
     STATE_FLUSHING_DECODER,
     STATE_PENDING_DEMUXER_READ,
     STATE_REINITIALIZING_DECODER,
     STATE_END_OF_STREAM,  // End of stream reached; returns EOS on all reads.
     STATE_ERROR
   };
 
-  void SelectDecoder(const SetCdmReadyCB& set_cdm_ready_cb);
+  void SelectDecoder(CdmContext* cdm_context);
 
   // Called when |decoder_selector| selected the |selected_decoder|.
   // |decrypting_demuxer_stream| was also populated if a DecryptingDemuxerStream
   // is created to help decrypt the encrypted stream.
   void OnDecoderSelected(
       scoped_ptr<Decoder> selected_decoder,
       scoped_ptr<DecryptingDemuxerStream> decrypting_demuxer_stream);
 
   // Satisfy pending |read_cb_| with |status| and |output|.
   void SatisfyRead(Status status,
@@ skipping 86 matching lines @@
 
 template <>
 int DecoderStream<DemuxerStream::AUDIO>::GetMaxDecodeRequests() const;
 
 typedef DecoderStream<DemuxerStream::VIDEO> VideoFrameStream;
 typedef DecoderStream<DemuxerStream::AUDIO> AudioBufferStream;
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECODER_STREAM_H_