Fix layoutOverflowRect in case of explicit 'overflow: scroll', but no overflow content

Source/core/rendering/RenderBox.cpp

Index: Source/core/rendering/RenderBox.cpp
diff --git a/Source/core/rendering/RenderBox.cpp b/Source/core/rendering/RenderBox.cpp
index b942cf4321623b388b4f0552a4f61c74540a4ba2..728025e47a39d2c27a2bbd96138be15a2b6af153 100644
--- a/Source/core/rendering/RenderBox.cpp
+++ b/Source/core/rendering/RenderBox.cpp
@@ -4283,12 +4283,8 @@ void RenderBox::addContentsVisualOverflow(const LayoutRect& rect)
         return;
     }
 
-    if (!m_overflow) {
-        LayoutRect clientBox = clientBoxRect();
-        if (style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
-            clientBox.move(-verticalScrollbarWidth(), 0);
-        m_overflow = adoptPtr(new RenderOverflow(clientBox, borderBoxRect()));
-    }
+    if (!m_overflow)
+        m_overflow = adoptPtr(new RenderOverflow(noOverflowRect(), borderBoxRect()));
     m_overflow->addContentsVisualOverflow(rect);
 }