Implements CSSPropertyAPI for the column-width property.

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

Index: third_party/WebKit/Source/core/css/properties/CSSPropertyAPIColumnWidth.cpp
diff --git a/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIColumnWidth.cpp b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIColumnWidth.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..040684819f732f10fa64ce9d1b196a062648c267
--- /dev/null
+++ b/third_party/WebKit/Source/core/css/properties/CSSPropertyAPIColumnWidth.cpp
@@ -0,0 +1,17 @@
+// 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/CSSPropertyAPIColumnWidth.h"
+
+#include "core/css/properties/CSSPropertyColumnUtils.h"
+
+namespace blink {
+
+const CSSValue* CSSPropertyAPIColumnWidth::parseSingleValue(
+    CSSParserTokenRange& range,
+    const CSSParserContext* context) {
+  return CSSPropertyColumnUtils::consumeColumnWidth(range);
+}
+
+}  // namespace blink