Change NeedKeyCB to use std::vector.

media/base/demuxer.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_BASE_DEMUXER_H_
 #define MEDIA_BASE_DEMUXER_H_
 
 #include "base/time/time.h"
 #include "media/base/data_source.h"
 #include "media/base/demuxer_stream.h"
@@ skipping 11 matching lines @@
   // Stops execution of the pipeline due to a fatal error.  Do not call this
   // method with PIPELINE_OK.
   virtual void OnDemuxerError(PipelineStatus error) = 0;
 
  protected:
   virtual ~DemuxerHost();
 };
 
 class MEDIA_EXPORT Demuxer {
  public:
+  // A new potentially encrypted stream has been parsed.
+  // First parameter - The type of initialization data.
+  // Second parameter - The initialization data associated with the stream.
+  typedef base::Callback<void(const std::string& type,
+                              const std::vector<uint8>& init_data)> NeedKeyCB;
+
   Demuxer();
   virtual ~Demuxer();
 
   // Completes initialization of the demuxer.
   //
   // The demuxer does not own |host| as it is guaranteed to outlive the
   // lifetime of the demuxer. Don't delete it!
   virtual void Initialize(DemuxerHost* host,
                           const PipelineStatusCB& status_cb) = 0;
 
@@ skipping 25 matching lines @@
   // Returns the starting time for the media file.
   virtual base::TimeDelta GetStartTime() const = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(Demuxer);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_DEMUXER_H_