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

third_party/WebKit/Source/core/style/StyleRay.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/style/StyleRay.h"
+
+namespace blink {
+
+PassRefPtr<StyleRay> StyleRay::Create(float angle, RaySize size, bool contain) {
+  return AdoptRef(new StyleRay(angle, size, contain));
+}
+
+StyleRay::StyleRay(float angle, RaySize size, bool contain)
+    : angle_(angle), size_(size), contain_(contain) {}
+
+bool StyleRay::operator==(const BasicShape& o) const {
+  if (!IsSameType(o))
+    return false;
+  const StyleRay& other = ToStyleRay(o);
+  return angle_ == other.angle_ && size_ == other.size_ &&
+         contain_ == other.contain_;
+}
+
+void StyleRay::GetPath(Path&, const FloatRect&) {
+  // ComputedStyle::ApplyMotionPathTransform cannot call GetPath
+  // for rays as they may have infinite length.
+  NOTREACHED();
+}
+
+PassRefPtr<BasicShape> StyleRay::Blend(const BasicShape*, double) const {
+  // TODO(ericwilligers): Implement animation for offset-path.
+  NOTREACHED();
+  return nullptr;
+}
+
+}  // namespace blink