[LayoutNG] Move remaining ng_units structs to their own files

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

Index: third_party/WebKit/Source/core/layout/ng/ng_min_max_content_size.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_min_max_content_size.cc b/third_party/WebKit/Source/core/layout/ng/ng_min_max_content_size.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d64eaa58b45af17df0b3d71d09ed9c44011d507c
--- /dev/null
+++ b/third_party/WebKit/Source/core/layout/ng/ng_min_max_content_size.cc
@@ -0,0 +1,19 @@
+// 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"
+
+namespace blink {
+
+LayoutUnit MinAndMaxContentSizes::ShrinkToFit(LayoutUnit available_size) const {
+  DCHECK_GE(max_content, min_content);
+  return std::min(max_content, std::max(min_content, available_size));
+}
+
+bool MinAndMaxContentSizes::operator==(
+    const MinAndMaxContentSizes& other) const {
+  return min_content == other.min_content && max_content == other.max_content;
+}
+
+}  // namespace blink