Scrollbar width is not applied when element hidden

Source/core/rendering/RenderScrollbar.cpp

 /*
  * Copyright (C) 2008, 2009 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 207 matching lines @@
     return SCROLLBAR;
 }
 
 void RenderScrollbar::updateScrollbarPart(ScrollbarPart partType, bool destroy)
 {
     if (partType == NoPart)
         return;
 
     RefPtr<RenderStyle> partStyle = !destroy ? getScrollbarPseudoStyle(partType,  pseudoForScrollbarPart(partType)) : PassRefPtr<RenderStyle>(nullptr);
 
-    bool needRenderer = !destroy && partStyle && partStyle->display() != NONE && partStyle->visibility() == VISIBLE;
+    bool needRenderer = !destroy && partStyle && partStyle->display() != NONE;
 
     if (needRenderer && partStyle->display() != BLOCK) {
         // See if we are a button that should not be visible according to OS settings.
         ScrollbarButtonsPlacement buttonsPlacement = theme()->buttonsPlacement();
         switch (partType) {
             case BackButtonStartPart:
                 needRenderer = (buttonsPlacement == ScrollbarButtonsSingle || buttonsPlacement == ScrollbarButtonsDoubleStart ||
                                 buttonsPlacement == ScrollbarButtonsDoubleBoth);
                 break;
             case ForwardButtonStartPart:
@@ skipping 111 matching lines @@
 int RenderScrollbar::minimumThumbLength()
 {
     RenderScrollbarPart* partRenderer = m_parts.get(ThumbPart);
     if (!partRenderer)
         return 0;
     partRenderer->layout();
     return orientation() == HorizontalScrollbar ? partRenderer->width() : partRenderer->height();
 }
 
 }