Switch stream creation and closing in Chrome audio rendering from IPC to Mojo

content/browser/media/audio_output_stream_impl.cc

+// Copyright 2016 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 "content/browser/media/audio_output_stream_impl.h"
+
+namespace content {
+
+AudioOutputStreamImpl::AudioOutputStreamImpl(
+    int stream_id,
+    AudioOutputImpl* audio_output_impl,
+    media::mojom::AudioOutputStreamRequest request)
+    : stream_id_(stream_id), audio_output_impl_(audio_output_impl) {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  binding_.reset(new mojo::Binding<media::mojom::AudioOutputStream>(
+      this, std::move(request)));
+}
+
+AudioOutputStreamImpl::~AudioOutputStreamImpl() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+}
+
+void AudioOutputStreamImpl::Close() {
+  DCHECK_CURRENTLY_ON(BrowserThread::IO);
+  audio_output_impl_->CloseStream(stream_id_);
+}
+
+}  // namespace content