Update the snap points css properties

third_party/WebKit/Source/core/style/QuadLengthValue.h

Index: third_party/WebKit/Source/core/style/QuadLengthValue.h
diff --git a/third_party/WebKit/Source/core/style/QuadLengthValue.h b/third_party/WebKit/Source/core/style/QuadLengthValue.h
new file mode 100644
index 0000000000000000000000000000000000000000..b3cb447ebb9e9b38d56c490bf987235dee659f95
--- /dev/null
+++ b/third_party/WebKit/Source/core/style/QuadLengthValue.h
@@ -0,0 +1,44 @@
+// 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 QuadLengthValue_h
+#define QuadLengthValue_h
+
+#include <memory>
+#include "platform/Length.h"
+
+namespace blink {
+
+struct QuadLengthValue {
+  DISALLOW_NEW();
+
+  QuadLengthValue() {}
+
+  explicit QuadLengthValue(Length length)
+      : top(length), right(length), bottom(length), left(length) {}
+
+  QuadLengthValue(const QuadLengthValue& other)
+      : top(other.top),
+        right(other.right),
+        bottom(other.bottom),
+        left(other.left) {}
+
+  bool operator==(const QuadLengthValue& other) const {
+    return top == other.top && right == other.right && bottom == other.bottom &&
+           left == other.left;
+  }
+
+  bool operator!=(const QuadLengthValue& other) const {
+    return !(*this == other);
+  }
+
+  Length top;
+  Length right;
+  Length bottom;
+  Length left;
+};
+
+}  // namespace blink
+
+#endif  // QuadLengthValue_h