[css-flexbox] Fix size comparison when scrollbars are present

third_party/WebKit/Source/core/layout/LayoutFlexibleBox.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 102 matching lines @@
     bool hasOrthogonalFlow(const LayoutBox& child) const;
     bool isColumnFlow() const;
     bool isLeftToRightFlow() const;
     bool isMultiline() const;
     Length flexBasisForChild(const LayoutBox& child) const;
     LayoutUnit crossAxisExtentForChild(const LayoutBox& child) const;
     LayoutUnit crossAxisIntrinsicExtentForChild(const LayoutBox& child) const;
     LayoutUnit childIntrinsicLogicalHeight(const LayoutBox& child) const;
     LayoutUnit childIntrinsicLogicalWidth(const LayoutBox& child) const;
     LayoutUnit mainAxisExtentForChild(const LayoutBox& child) const;
-    LayoutUnit mainAxisContentExtentForChild(const LayoutBox& child) const;
+    LayoutUnit mainAxisContentExtentForChildIncludingScrollbar(const LayoutBox& child) const;
     LayoutUnit crossAxisExtent() const;
     LayoutUnit mainAxisExtent() const;
     LayoutUnit crossAxisContentExtent() const;
     LayoutUnit mainAxisContentExtent(LayoutUnit contentLogicalHeight);
     LayoutUnit computeMainAxisExtentForChild(const LayoutBox& child, SizeType, const Length& size);
     TransformedWritingMode getTransformedWritingMode() const;
     LayoutUnit flowAwareBorderStart() const;
     LayoutUnit flowAwareBorderEnd() const;
     LayoutUnit flowAwareBorderBefore() const;
     LayoutUnit flowAwareBorderAfter() const;
@@ skipping 74 matching lines @@
 
     // This is SizeIsUnknown outside of layoutBlock()
     mutable SizeDefiniteness m_hasDefiniteHeight;
 };
 
 DEFINE_LAYOUT_OBJECT_TYPE_CASTS(LayoutFlexibleBox, isFlexibleBox());
 
 } // namespace blink
 
 #endif // LayoutFlexibleBox_h