Remove clips where we can show that they are unnecessary.

Source/core/rendering/RenderBlock.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 863 matching lines @@
 
     // End of functions defined in RenderBlockLineLayout.cpp.
 
     void paintFloats(PaintInfo&, const LayoutPoint&, bool preservePhase = false);
     void paintContents(PaintInfo&, const LayoutPoint&);
     void paintColumnContents(PaintInfo&, const LayoutPoint&, bool paintFloats = false);
     void paintColumnRules(PaintInfo&, const LayoutPoint&);
     void paintSelection(PaintInfo&, const LayoutPoint&);
     void paintCaret(PaintInfo&, const LayoutPoint&, CaretType);
 
+    bool hasCaret() const { return hasCaret(CursorCaret) || hasCaret(DragCaret); }
+    bool hasCaret(CaretType) const;
+
     FloatingObject* insertFloatingObject(RenderBox*);
     void removeFloatingObject(RenderBox*);
     void removeFloatingObjectsBelow(FloatingObject*, int logicalOffset);
 
     // Called from lineWidth, to position the floats added in the last line.
     // Returns true if and only if it has positioned any floats.
     bool positionNewFloats();
 
     void clearFloats();
 
@@ skipping 443 matching lines @@
     static String string(const int value);
 };
 template<> struct ValueToString<RenderBlock::FloatingObject*> {
     static String string(const RenderBlock::FloatingObject*);
 };
 #endif
 
 } // namespace WebCore
 
 #endif // RenderBlock_h