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

third_party/WebKit/Source/core/style/StylePath.cpp

 // 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.
 
 #include "core/style/StylePath.h"
 
 #include <memory>
 #include "core/css/CSSPathValue.h"
 #include "core/svg/SVGPathByteStream.h"
 #include "core/svg/SVGPathUtilities.h"
@@ skipping 36 matching lines @@
 }
 
 bool StylePath::IsClosed() const {
   return GetPath().IsClosed();
 }
 
 CSSValue* StylePath::ComputedCSSValue() const {
   return CSSPathValue::Create(const_cast<StylePath*>(this));
 }
 
-bool StylePath::operator==(const StylePath& other) const {
+bool StylePath::operator==(const BasicShape& o) const {
+  if (!IsSameType(o))
+    return false;
+  const StylePath& other = ToStylePath(o);
   return *byte_stream_ == *other.byte_stream_;
 }
 
+void StylePath::GetPath(Path&, const FloatRect&) {
+  // Callers should use GetPath() overload, which avoids making a copy.
+  NOTREACHED();
+}
+
+PassRefPtr<BasicShape> StylePath::Blend(const BasicShape*, double) const {
+  // TODO(ericwilligers): Implement animation for offset-path.
+  NOTREACHED();
+  return nullptr;
+}
+
 }  // namespace blink