Fix RTL scroll bars being misrendered on Android.

Source/core/platform/ScrollView.cpp

 /*
  * Copyright (C) 2006, 2007, 2008 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 791 matching lines @@
 }
 
 bool ScrollView::userInputScrollable(ScrollbarOrientation orientation) const
 {
     ScrollbarMode mode = (orientation == HorizontalScrollbar) ?
         m_horizontalScrollbarMode : m_verticalScrollbarMode;
 
     return mode == ScrollbarAuto || mode == ScrollbarAlwaysOn;
 }
 
+bool ScrollView::shouldPlaceVerticalScrollbarOnLeft() const
+{
+    return false;
+}
+
 void ScrollView::repaintContentRectangle(const IntRect& rect)
 {
     IntRect paintRect = rect;
     if (clipsRepaints() && !paintsEntireContents())
         paintRect.intersect(visibleContentRect());
     if (paintRect.isEmpty())
         return;
 
     if (HostWindow* window = hostWindow())
         window->invalidateContentsAndRootView(contentsToWindow(paintRect));
@@ skipping 365 matching lines @@
 int ScrollView::pageStep(ScrollbarOrientation orientation) const
 {
     int length = (orientation == HorizontalScrollbar) ? visibleWidth() : visibleHeight();
     int minPageStep = static_cast<float>(length) * minFractionToStepWhenPaging();
     int pageStep = std::max(minPageStep, length - maxOverlapBetweenPages());
 
     return std::max(pageStep, 1);
 }
 
 } // namespace WebCore