Revert of [LayoutNG] Move remaining ng_units structs to their own files

third_party/WebKit/Source/core/layout/ng/geometry/ng_edge.h

Index: third_party/WebKit/Source/core/layout/ng/geometry/ng_edge.h
diff --git a/third_party/WebKit/Source/core/layout/ng/geometry/ng_edge.h b/third_party/WebKit/Source/core/layout/ng/geometry/ng_edge.h
deleted file mode 100644
index 062bc74674a7b485dee7ab300d7d955f502294f9..0000000000000000000000000000000000000000
--- a/third_party/WebKit/Source/core/layout/ng/geometry/ng_edge.h
+++ /dev/null
@@ -1,21 +0,0 @@
-// 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.
-
-#ifndef NGEdge_h
-#define NGEdge_h
-
-#include "core/CoreExport.h"
-#include "platform/LayoutUnit.h"
-
-namespace blink {
-
-// Struct to represent a simple edge that has start and end.
-struct CORE_EXPORT NGEdge {
-  LayoutUnit start;
-  LayoutUnit end;
-};
-
-}  // namespace blink
-
-#endif  // NGEdge_h