Don't try to decode more than one EOS at a time.

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 c077a1830eccfe288e5e8f3401fdbed24c91b197..ba0d5121a256b831c894c53e491839235531ef25 100644
--- a/media/filters/decoder_stream.h
+++ b/media/filters/decoder_stream.h
@@ -183,6 +183,10 @@ class MEDIA_EXPORT DecoderStream {
   // 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.
+  bool decoding_eos_;
+
   // Decoded buffers that haven't been read yet. Used when the decoder supports
   // parallel decoding.
   std::list<scoped_refptr<Output> > ready_outputs_;