Fix RTL scroll bars being misrendered on Android.

Source/core/platform/chromium/support/WebScrollbarThemeClientImpl.cpp

 /*
  * Copyright (C) 2012 Google 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
@@ skipping 135 matching lines @@
 bool WebScrollbarThemeClientImpl::isCustomScrollbar() const
 {
     return m_scrollbar->isCustomScrollbar();
 }
 
 WebCore::ScrollbarOrientation WebScrollbarThemeClientImpl::orientation() const
 {
     return static_cast<WebCore::ScrollbarOrientation>(m_scrollbar->orientation());
 }
 
+bool WebScrollbarThemeClientImpl::isLeftSideVerticalScrollbar() const
+{
+    return m_scrollbar->isLeftSideVerticalScrollbar();
+}
+
 int WebScrollbarThemeClientImpl::value() const
 {
     return m_scrollbar->value();
 }
 
 float WebScrollbarThemeClientImpl::currentPos() const
 {
     return value();
 }
 
@@ skipping 51 matching lines @@
 {
     return m_scrollbar->isAlphaLocked();
 }
 
 void WebScrollbarThemeClientImpl::setIsAlphaLocked(bool flag)
 {
     m_scrollbar->setIsAlphaLocked(flag);
 }
 
 } // namespace WebKit