Migrating MediaSession messages to mojo

content/common/media/media_session_service_struct_traits.h

Index: content/common/media/media_session_service_struct_traits.h
diff --git a/content/common/media/media_session_service_struct_traits.h b/content/common/media/media_session_service_struct_traits.h
new file mode 100644
index 0000000000000000000000000000000000000000..acd36cb4d17d984994dd48cecb4eaa31b816aade
--- /dev/null
+++ b/content/common/media/media_session_service_struct_traits.h
@@ -0,0 +1,30 @@
+// 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.
+
+#ifndef CONTENT_COMMON_MEDIA_MEDIA_SESSION_SERVICE_STRUCT_TRAITS_H_
+#define CONTENT_COMMON_MEDIA_MEDIA_SESSION_SERVICE_STRUCT_TRAITS_H_
+
+#include "third_party/WebKit/public/platform/modules/mediasession/media_session.mojom.h"
+
+namespace mojo {
+
+template <>
+struct StructTraits<blink::mojom::MediaMetadataIcon,
+                    content::MediaMetadata::Artwork> {
+  static url::mojom::Url& src(const content::MediaMetadata::Artwork& artwork) {
+    return artwork.src;
+  }
+
+  static mojo::common::mojom::NullableString16& type(
+      const content::MediaMetadata::Artwork& artwork) {
+    return artwork.type;
+  }
+
+  static mojo::
+}
+
+}  // namespace mojo
+
+
+#endif  // CONTENT_COMMON_MEDIA_MEDIA_SESSION_SERVICE_STRUCT_TRAITS_H_