[Media Router] Parse device description xml in utility process

chrome/common/media_router/dial_device_description.cc

Index: chrome/common/media_router/dial_device_description.cc
diff --git a/chrome/common/media_router/dial_device_description.cc b/chrome/common/media_router/dial_device_description.cc
new file mode 100644
index 0000000000000000000000000000000000000000..3c9167f895816165da01094cef70fb5607a72ebb
--- /dev/null
+++ b/chrome/common/media_router/dial_device_description.cc
@@ -0,0 +1,16 @@
+// Copyright 2017 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 "chrome/common/media_router/dial_device_description.h"
+
+namespace media_router {
+
+DialDeviceDescription::DialDeviceDescription() = default;
+
+DialDeviceDescription::DialDeviceDescription(
+    const DialDeviceDescription& other) = default;
+
+DialDeviceDescription::~DialDeviceDescription() = default;
+
+}  // namespace media_router