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

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

-// 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/ng_min_max_content_size.h"
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-namespace blink {
-
-namespace {
-
-TEST(NGUnitsTest, ShrinkToFit) {
-  MinMaxContentSize sizes;
-
-  sizes.min_content = LayoutUnit(100);
-  sizes.max_content = LayoutUnit(200);
-  EXPECT_EQ(LayoutUnit(200), sizes.ShrinkToFit(LayoutUnit(300)));
-
-  sizes.min_content = LayoutUnit(100);
-  sizes.max_content = LayoutUnit(300);
-  EXPECT_EQ(LayoutUnit(200), sizes.ShrinkToFit(LayoutUnit(200)));
-
-  sizes.min_content = LayoutUnit(200);
-  sizes.max_content = LayoutUnit(300);
-  EXPECT_EQ(LayoutUnit(200), sizes.ShrinkToFit(LayoutUnit(100)));
-}
-
-}  // namespace
-
-}  // namespace blink