Add SupportsConfigChanges() to DemuxerStream.

media/base/fake_text_track_stream.cc

 // Copyright 2013 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.
 
 #include "media/base/fake_text_track_stream.h"
 
 #include "base/bind.h"
 #include "base/callback_helpers.h"
 #include "media/base/decoder_buffer.h"
 #include "media/filters/webvtt_util.h"
@@ skipping 18 matching lines @@
   if (stopping_) {
     task_runner_->PostTask(FROM_HERE, base::Bind(
         &FakeTextTrackStream::AbortPendingRead, base::Unretained(this)));
   }
 }
 
 DemuxerStream::Type FakeTextTrackStream::type() {
   return DemuxerStream::TEXT;
 }
 
+bool FakeTextTrackStream::SupportsConfigChanges() { return false; }
+
 void FakeTextTrackStream::SatisfyPendingRead(
     const base::TimeDelta& start,
     const base::TimeDelta& duration,
     const std::string& id,
     const std::string& content,
     const std::string& settings) {
   DCHECK(!read_cb_.is_null());
 
   const uint8* const data_buf = reinterpret_cast<const uint8*>(content.data());
   const int data_len = static_cast<int>(content.size());
@@ skipping 25 matching lines @@
   base::ResetAndReturn(&read_cb_).Run(kOk, DecoderBuffer::CreateEOSBuffer());
 }
 
 void FakeTextTrackStream::Stop() {
   stopping_ = true;
   if (!read_cb_.is_null())
     AbortPendingRead();
 }
 
 }  // namespace media