Invalid height of column flex children with overflow: scroll

Source/core/rendering/RenderFlexibleBox.cpp

Index: Source/core/rendering/RenderFlexibleBox.cpp
diff --git a/Source/core/rendering/RenderFlexibleBox.cpp b/Source/core/rendering/RenderFlexibleBox.cpp
index 2a6c7056fe62f5936d31f67d7d298d59b86f3769..a45e062cc6856b707bd721bae8794c588485ff29 100644
--- a/Source/core/rendering/RenderFlexibleBox.cpp
+++ b/Source/core/rendering/RenderFlexibleBox.cpp
@@ -426,7 +426,7 @@ LayoutUnit RenderFlexibleBox::computeMainAxisExtentForChild(RenderBox* child, Si
         // We don't have to check for "auto" here - computeContentLogicalHeight will just return -1 for that case anyway.
         if (size.isIntrinsic())
             child->layoutIfNeeded();
-        return child->computeContentLogicalHeight(size, child->logicalHeight() - child->borderAndPaddingLogicalHeight());
+        return child->computeContentLogicalHeight(size, child->logicalHeight() - child->borderAndPaddingLogicalHeight()) + child->scrollbarLogicalHeight();
     }
     return child->computeLogicalWidthUsing(sizeType, size, contentLogicalWidth(), this) - child->borderAndPaddingLogicalWidth();
 }