Constrain width/height to minmax values

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

Index: third_party/WebKit/Source/core/layout/ng/ng_length_utils.cc
diff --git a/third_party/WebKit/Source/core/layout/ng/ng_length_utils.cc b/third_party/WebKit/Source/core/layout/ng/ng_length_utils.cc
index 58c2b1caec83686914757e00c51238c562bd4b14..3ab6d1546b6209674894024b5291d3a83aec9a36 100644
--- a/third_party/WebKit/Source/core/layout/ng/ng_length_utils.cc
+++ b/third_party/WebKit/Source/core/layout/ng/ng_length_utils.cc
@@ -408,4 +408,14 @@ void ApplyAutoMargins(const NGConstraintSpace& constraint_space,
   }
 }
 
+LayoutUnit ConstrainByMinMax(LayoutUnit length,
+                             Optional<LayoutUnit> min,
+                             Optional<LayoutUnit> max) {
+  if (max && length > max.value())
+    length = max.value();
+  if (min && length < min.value())
+    length = min.value();
+  return length;
+}
+
 }  // namespace blink