Add DecryptingDemuxerStream.

media/filters/decrypting_video_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_VIDEO_DECODER_H_
 #define MEDIA_FILTERS_DECRYPTING_VIDEO_DECODER_H_
 
 #include "base/callback.h"
 #include "base/memory/ref_counted.h"
 #include "media/base/decryptor.h"
@@ skipping 47 matching lines @@
   virtual void Reset(const base::Closure& closure) OVERRIDE;
   virtual void Stop(const base::Closure& closure) OVERRIDE;
 
  protected:
   virtual ~DecryptingVideoDecoder();
 
  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.
-  enum DecoderState {
+  enum State {
     kUninitialized = 0,
     kDecryptorRequested,
     kPendingDecoderInit,
     kIdle,
     kPendingDemuxerRead,
     kPendingDecode,
     kWaitingForKey,
     kDecodeFinished,
     kStopped
   };
@@ skipping 44 matching lines @@
 
   // Free decoder resources and call |stop_cb_|.
   void DoStop();
 
   // This is !is_null() iff Initialize() hasn't been called.
   MessageLoopFactoryCB message_loop_factory_cb_;
 
   scoped_refptr<base::MessageLoopProxy> message_loop_;
 
   // Current state of the DecryptingVideoDecoder.
-  DecoderState state_;
+  State state_;
 
   PipelineStatusCB init_cb_;
   StatisticsCB statistics_cb_;
   ReadCB read_cb_;
   base::Closure reset_cb_;
 
   // Pointer to the demuxer stream that will feed us compressed buffers.
   scoped_refptr<DemuxerStream> demuxer_stream_;
 
   // Callback to request/cancel decryptor creation notification.
@@ skipping 10 matching lines @@
   // decrypting/decoding again in case the newly added key is the correct
   // decryption key.
   bool key_added_while_pending_decode_;
 
   DISALLOW_COPY_AND_ASSIGN(DecryptingVideoDecoder);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_FILTERS_DECRYPTING_VIDEO_DECODER_H_