Add NGColumnLayoutAlgorithm skeleton implementation.

third_party/WebKit/Source/core/layout/ng/ng_column_layout_algorithm.cc

+// 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/layout/ng/ng_column_layout_algorithm.h"
+
+namespace blink {
+
+NGColumnLayoutAlgorithm::NGColumnLayoutAlgorithm(NGBlockNode* node,
+                                                 NGConstraintSpace* space,
+                                                 NGBreakToken* break_token)
+    : NGBlockLayoutAlgorithm(node, space, toNGBlockBreakToken(break_token)){};
+
+RefPtr<NGLayoutResult> NGColumnLayoutAlgorithm::Layout() {
+  LOG(FATAL) << "Not implemented";
+  return nullptr;
+}
+
+}  // namespace Blink