CSS Motion Path: Support parsing of ray(<angle>) paths

third_party/WebKit/Source/core/css/CSSRayValue.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 CSSRayValue_h
+#define CSSRayValue_h
+
+#include "core/css/CSSValue.h"
+
+namespace blink {
+
+class CSSIdentifierValue;
+class CSSPrimitiveValue;
+
+class CSSRayValue : public CSSValue {
+ public:
+  static CSSRayValue* Create(const CSSPrimitiveValue& angle,
+                             const CSSIdentifierValue& size,
+                             const CSSIdentifierValue* contain);
+
+  const CSSPrimitiveValue& Angle() const { return *angle_; }
+  const CSSIdentifierValue& Size() const { return *size_; }
+  const CSSIdentifierValue* Contain() const { return contain_.Get(); }
+
+  String CustomCSSText() const;
+
+  bool Equals(const CSSRayValue&) const;
+
+  DECLARE_TRACE_AFTER_DISPATCH();
+
+ private:
+  CSSRayValue(const CSSPrimitiveValue& angle,
+              const CSSIdentifierValue& size,
+              const CSSIdentifierValue* contain);
+
+  Member<const CSSPrimitiveValue> angle_;
+  Member<const CSSIdentifierValue> size_;
+  Member<const CSSIdentifierValue> contain_;
+};
+
+DEFINE_CSS_VALUE_TYPE_CASTS(CSSRayValue, IsRayValue());
+
+}  // namespace blink
+
+#endif  // CSSRayValue_h