Fix overlay scroll bar color on elements with dark background

third_party/WebKit/Source/core/layout/LayoutBox.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2005 Allan Sandfeld Jensen (kde@carewolf.com)
  *           (C) 2005, 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 260 matching lines @@
     // Our opaqueness might have changed without triggering layout.
     if (diff.needsPaintInvalidation()) {
         LayoutObject* parentToInvalidate = parent();
         for (unsigned i = 0; i < backgroundObscurationTestMaxDepth && parentToInvalidate; ++i) {
             parentToInvalidate->invalidateBackgroundObscurationStatus();
             parentToInvalidate = parentToInvalidate->parent();
         }
     }
 
     if (isDocumentElement() || isBody()) {
-        document().view()->recalculateScrollbarOverlayStyle();
+        document().view()->recalculateScrollbarOverlayStyle(document().view()->documentBackgroundColor());
         document().view()->recalculateCustomScrollbarStyle();
         if (LayoutView* layoutView = view()) {
             if (PaintLayerScrollableArea* scrollableArea = layoutView->scrollableArea()) {
                 if (scrollableArea->horizontalScrollbar() && scrollableArea->horizontalScrollbar()->isCustomScrollbar())
                     scrollableArea->horizontalScrollbar()->styleChanged();
                 if (scrollableArea->verticalScrollbar() && scrollableArea->verticalScrollbar()->isCustomScrollbar())
                     scrollableArea->verticalScrollbar()->styleChanged();
             }
         }
     }
@@ skipping 4385 matching lines @@
 }
 
 void LayoutBox::IntrinsicSizingInfo::transpose()
 {
     size = size.transposedSize();
     aspectRatio = aspectRatio.transposedSize();
     std::swap(hasWidth, hasHeight);
 }
 
 } // namespace blink