Implement MediaMetadata artwork in Blink

third_party/WebKit/Source/modules/mediasession/MediaArtwork.h

Index: third_party/WebKit/Source/modules/mediasession/MediaArtwork.h
diff --git a/third_party/WebKit/Source/modules/mediasession/MediaArtwork.h b/third_party/WebKit/Source/modules/mediasession/MediaArtwork.h
new file mode 100644
index 0000000000000000000000000000000000000000..8614406a2fde8e903cd4dadd8d79553d9e138c07
--- /dev/null
+++ b/third_party/WebKit/Source/modules/mediasession/MediaArtwork.h
@@ -0,0 +1,41 @@
+// 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 MediaArtwork_h
+#define MediaArtwork_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+#include "modules/ModulesExport.h"
+#include "platform/heap/Handle.h"
+#include "public/platform/modules/mediasession/WebMediaArtwork.h"
+
+namespace blink {
+
+class ExecutionContext;
+class MediaArtworkInit;
+
+class MODULES_EXPORT MediaArtwork final
+    : public GarbageCollectedFinalized<MediaArtwork>
+    , public ScriptWrappable {
+    DEFINE_WRAPPERTYPEINFO();
+public:
+    static MediaArtwork* create(ExecutionContext*, const MediaArtworkInit&);
+
+    String src() const;
+    String sizes() const;
+    String type() const;
+
+    WebMediaArtwork* data() { return &m_data; }
+
+    DEFINE_INLINE_TRACE() { }
+
+private:
+    MediaArtwork(ExecutionContext*, const MediaArtworkInit&);
+
+    WebMediaArtwork m_data;
+};
+
+}
+
+#endif // MediaArtwork_h