[LayoutNG] Change core/layout/ng to Chromium style and rename files.

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

Index: third_party/WebKit/Source/core/layout/ng/layout_ng_block_flow.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/layout_ng_block_flow.cc b/third_party/WebKit/Source/core/layout/ng/layout_ng_block_flow.cc
new file mode 100644
index 0000000000000000000000000000000000000000..027e1f7589c9a8fa2b1d95ad8880f7980f69f09a
--- /dev/null
+++ b/third_party/WebKit/Source/core/layout/ng/layout_ng_block_flow.cc
@@ -0,0 +1,16 @@
+// 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/layout/ng/layout_ng_block_flow.h"
+
+namespace blink {
+
+LayoutNGBlockFlow::LayoutNGBlockFlow(Element* element)
+    : LayoutBlockFlow(element) {}
+
+bool LayoutNGBlockFlow::isOfType(LayoutObjectType type) const {
+  return type == LayoutObjectNGBlockFlow || LayoutBlockFlow::isOfType(type);
+}
+
+}  // namespace blink