media: Delete renderer/demuxer splicing code.

media/filters/decoder_stream.h

Index: media/filters/decoder_stream.h
diff --git a/media/filters/decoder_stream.h b/media/filters/decoder_stream.h
index 1cf504884cca65fceed2de8f09b394be4fb54b58..2a7d8497c2bbb030fa0ca6e122c9e13839d41e65 100644
--- a/media/filters/decoder_stream.h
+++ b/media/filters/decoder_stream.h
@@ -104,16 +104,6 @@ class MEDIA_EXPORT DecoderStream {
 
   base::TimeDelta AverageDuration() const;
 
-  // Allows callers to register for notification of splice buffers from the
-  // demuxer.  I.e., DecoderBuffer::splice_timestamp() is not kNoTimestamp.
-  //
-  // The observer will be notified of all buffers with a splice_timestamp() and
-  // the first buffer after which has a splice_timestamp() of kNoTimestamp.
-  typedef base::Callback<void(base::TimeDelta)> SpliceObserverCB;
-  void set_splice_observer(const SpliceObserverCB& splice_observer) {
-    splice_observer_cb_ = splice_observer;
-  }
-
   // Allows callers to register for notification of config changes; this is
   // called immediately after receiving the 'kConfigChanged' status from the
   // DemuxerStream, before any action is taken to handle the config change.
@@ -221,13 +211,8 @@ class MEDIA_EXPORT DecoderStream {
   std::unique_ptr<Decoder> previous_decoder_;
   std::unique_ptr<DecryptingDemuxerStream> decrypting_demuxer_stream_;
 
-  SpliceObserverCB splice_observer_cb_;
   ConfigChangeObserverCB config_change_observer_cb_;
 
-  // If a splice_timestamp() has been seen, this is true until a
-  // splice_timestamp() of kNoTimestamp is encountered.
-  bool active_splice_;
-
   // An end-of-stream buffer has been sent for decoding, no more buffers should
   // be sent for decoding until it completes.
   // TODO(sandersd): Turn this into a State. http://crbug.com/408316