Update EME MediaKeyNeededEvent.initData for ISO BMFF to match current spec.

media/mp4/mp4_stream_parser.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_MP4_MP4_STREAM_PARSER_H_
 #define MEDIA_MP4_MP4_STREAM_PARSER_H_
 
 #include <vector>
 
 #include "base/basictypes.h"
@@ skipping 30 matching lines @@
     kWaitingForInit,
     kParsingBoxes,
     kEmittingSamples,
     kError
   };
 
   bool ParseBox(bool* err);
   bool ParseMoov(mp4::BoxReader* reader);
   bool ParseMoof(mp4::BoxReader* reader);
 
-  bool EmitKeyNeeded(const TrackEncryption& track_encryption);
+  bool EmitKeyNeeded(
+      const std::vector<ProtectionSystemSpecificHeader>& headers);
 
   // To retain proper framing, each 'mdat' atom must be read; to limit memory
   // usage, the atom's data needs to be discarded incrementally as frames are
   // extracted from the stream. This function discards data from the stream up
   // to |offset|, updating the |mdat_tail_| value so that framing can be
   // retained after all 'mdat' information has been read.
   // Returns 'true' on success, 'false' if there was an error.
   bool ReadAndDiscardMDATsUntil(const int64 offset);
 
   void ChangeState(State new_state);
@@ skipping 40 matching lines @@
   uint32 video_track_id_;
   bool has_sbr_;
 
   DISALLOW_COPY_AND_ASSIGN(MP4StreamParser);
 };
 
 }  // namespace mp4
 }  // namespace media
 
 #endif  // MEDIA_MP4_MP4_STREAM_PARSER_H_