Implement PaintWorkletGlobalScope#registerPaint() for the CSS Paint API

third_party/WebKit/Source/bindings/core/v8/CSSPaintBinding.h

+// 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 CSSPaintBinding_h
+#define CSSPaintBinding_h
+
+#include "bindings/core/v8/ScopedPersistent.h"
+#include "wtf/Allocator.h"
+#include "wtf/PassOwnPtr.h"
+#include <v8.h>
+
+namespace blink {
+
+class CSSPaintBinding {
+    USING_FAST_MALLOC(CSSPaintBinding);
+public:
+    static PassOwnPtr<CSSPaintBinding> create(v8::Isolate*, v8::Local<v8::Function> constructor, v8::Local<v8::Function> paint);
+    ~CSSPaintBinding();
+
+private:
+    CSSPaintBinding(v8::Isolate*, v8::Local<v8::Function> constructor, v8::Local<v8::Function> paint);
+    ScopedPersistent<v8::Function> m_constructor;
+    ScopedPersistent<v8::Function> m_paint;
+};
+
+} // namespace blink
+
+#endif // CSSPaintBinding_h