Media Capabilities: stub implementation of mediaCapabilities.query().

third_party/WebKit/Source/modules/mediacapabilities/MediaDecodingAbility.h

+// 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.
+
+#ifndef MediaDecodingAbility_h
+#define MediaDecodingAbility_h
+
+#include "bindings/core/v8/ScriptWrappable.h"
+
+namespace blink {
+
+// Implementation of the MediaDecodingAbility interface.
+class MediaDecodingAbility final
+    : public GarbageCollected<MediaDecodingAbility>,
+      public ScriptWrappable {
+  DEFINE_WRAPPERTYPEINFO();
+
+ public:
+  MediaDecodingAbility();
+
+  bool supported() const;
+  bool smooth() const;
+  bool powerEfficient() const;
+
+  DECLARE_VIRTUAL_TRACE();
+};
+
+}  // namespace blink
+
+#endif  // MediaDecodingAbility_h