Reland the CL 8162015.

media/audio/audio_device_name.cc

Index: media/audio/audio_device_name.cc
diff --git a/media/audio/audio_device_name.cc b/media/audio/audio_device_name.cc
new file mode 100644
index 0000000000000000000000000000000000000000..02bb03f4aeac2de359c9a46ca69e80ec33b9354b
--- /dev/null
+++ b/media/audio/audio_device_name.cc
@@ -0,0 +1,18 @@
+// Copyright (c) 2011 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/audio/audio_device_name.h"
+
+namespace media {
+
+AudioDeviceName::AudioDeviceName() {}
+
+AudioDeviceName::AudioDeviceName(const std::string& device_name,
+                                 const std::string& unique_id)
+    : device_name(device_name),
+      unique_id(unique_id) {
+}
+
+}  // namespace media
+