Fix RTL scroll bars being misrendered on Android.

Source/core/platform/ScrollView.h

 /*
  * Copyright (C) 2004, 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Holger Hans Peter Freyther
  *
  * 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
@@ skipping 32 matching lines @@
 class ScrollView : public Widget, public ScrollableArea {
 public:
     ~ScrollView();
 
     // ScrollableArea functions.
     virtual int scrollSize(ScrollbarOrientation) const OVERRIDE;
     virtual void setScrollOffset(const IntPoint&) OVERRIDE;
     virtual bool isScrollCornerVisible() const OVERRIDE;
     virtual void scrollbarStyleChanged(int newStyle, bool forceUpdate) OVERRIDE;
     virtual bool userInputScrollable(ScrollbarOrientation) const OVERRIDE;
+    virtual bool shouldPlaceVerticalScrollbarOnLeft() const OVERRIDE;
 
     virtual void notifyPageThatContentAreaWillPaint() const;
 
     // NOTE: This should only be called by the overriden setScrollOffset from ScrollableArea.
     virtual void scrollTo(const IntSize& newOffset);
 
     // The window thats hosts the ScrollView. The ScrollView will communicate scrolls and repaints to the
     // host window in the window's coordinate space.
     virtual HostWindow* hostWindow() const = 0;
 
@@ skipping 292 matching lines @@
     ASSERT(!widget || widget->isScrollView());
     return static_cast<const ScrollView*>(widget);
 }
 
 // This will catch anyone doing an unnecessary cast.
 void toScrollView(const ScrollView*);
 
 } // namespace WebCore
 
 #endif // ScrollView_h