Merge 115471 - Infinite backgroundClipRect should not be scrolled.

Source/WebCore/rendering/RenderLayer.h

 /*
  * Copyright (C) 2003, 2009 Apple Inc. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
  *   Randall Jesup <rjesup@wgate.com>
@@ skipping 82 matching lines @@
     , m_hasRadius(false)
     { }
     
     const LayoutRect& rect() const { return m_rect; }
     void setRect(const LayoutRect& rect) { m_rect = rect; }
 
     bool hasRadius() const { return m_hasRadius; }
     void setHasRadius(bool hasRadius) { m_hasRadius = hasRadius; }
 
     bool operator==(const ClipRect& other) const { return rect() == other.rect() && hasRadius() == other.hasRadius(); }
+    bool operator!=(const ClipRect& other) const { return rect() != other.rect() || hasRadius() != other.hasRadius(); }
 
     void intersect(const LayoutRect& other) { m_rect.intersect(other); }
     void intersect(const ClipRect& other)
     {
         m_rect.intersect(other.rect());
         if (other.hasRadius())
             m_hasRadius = true;
     }
     void move(LayoutUnit x, LayoutUnit y) { m_rect.move(x, y); }
 
@@ skipping 769 matching lines @@
 
 } // namespace WebCore
 
 #ifndef NDEBUG
 // Outside the WebCore namespace for ease of invocation from gdb.
 void showLayerTree(const WebCore::RenderLayer*);
 void showLayerTree(const WebCore::RenderObject*);
 #endif
 
 #endif // RenderLayer_h