Move Liveness from DemuxerStreamProvider 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 14 matching lines @@
   DCHECK(read_cb_.is_null());
   OnRead();
   read_cb_ = read_cb;
 
   if (stopping_) {
     task_runner_->PostTask(FROM_HERE, base::Bind(
         &FakeTextTrackStream::AbortPendingRead, base::Unretained(this)));
   }
 }
 
-DemuxerStream::Type FakeTextTrackStream::type() {
+DemuxerStream::Type FakeTextTrackStream::type() const {
   return DemuxerStream::TEXT;
 }
 
 bool FakeTextTrackStream::SupportsConfigChanges() { return false; }
 
 VideoRotation FakeTextTrackStream::video_rotation() {
   return VIDEO_ROTATION_0;
 }
 
 void FakeTextTrackStream::SatisfyPendingRead(
@@ skipping 37 matching lines @@
   base::ResetAndReturn(&read_cb_).Run(kOk, DecoderBuffer::CreateEOSBuffer());
 }
 
 void FakeTextTrackStream::Stop() {
   stopping_ = true;
   if (!read_cb_.is_null())
     AbortPendingRead();
 }
 
 }  // namespace media