Implements CSSPropertyAPI for the clip-path property.

third_party/WebKit/Source/core/css/properties/CSSPropertyAPIClipPath.cpp

+// 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.
+
+#include "core/css/properties/CSSPropertyAPIClipPath.h"
+
+#include "core/css/CSSURIValue.h"
+#include "core/css/parser/CSSPropertyParserHelpers.h"
+#include "core/css/properties/CSSPropertyShapeUtils.h"
+
+namespace blink {
+
+const CSSValue* CSSPropertyAPIClipPath::parseSingleValue(
+    CSSParserTokenRange& range,
+    const CSSParserContext* context) {
+  if (range.peek().id() == CSSValueNone)
+    return CSSPropertyParserHelpers::consumeIdent(range);
+  if (CSSURIValue* url = CSSPropertyParserHelpers::consumeUrl(range, context))
+    return url;
+  return CSSPropertyShapeUtils::consumeBasicShape(range, context);
+}
+
+}  // namespace blink