Fix clientLeft value for RTL direction, while the element have vertical scrollbar in left side.

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 311d9dfc207ec4ce24cc4f5ec6605d55a085f153..1203e7bc45473acc525d52a6e7045db30a4183ed 100644
--- a/Source/core/rendering/RenderBox.cpp
+++ b/Source/core/rendering/RenderBox.cpp
@@ -4287,8 +4287,12 @@ void RenderBox::addContentsVisualOverflow(const LayoutRect& rect)
         return;
     }
 
-    if (!m_overflow)
-        m_overflow = adoptPtr(new RenderOverflow(clientBoxRect(), borderBoxRect()));
+    if (!m_overflow) {
+        LayoutRect clientBox = clientBoxRect();
+        if (style()->shouldPlaceBlockDirectionScrollbarOnLogicalLeft())
+            clientBox.move(-verticalScrollbarWidth(), 0);
+        m_overflow = adoptPtr(new RenderOverflow(clientBox, borderBoxRect()));
+    }
     m_overflow->addContentsVisualOverflow(rect);
 }