Reattach whitespace siblings only when needed

Source/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1505 matching lines @@
         updatePseudoElement(AFTER, change);
         updatePseudoElement(BACKDROP, change);
 
         clearChildNeedsStyleRecalc();
     }
 
     if (hasCustomStyleCallbacks())
         didRecalcStyle(change);
 
     if (change == Reattach)
-        reattachWhitespaceSiblings(nextTextSibling);
+        reattachWhitespaceSiblingsIfNeeded(nextTextSibling);
 }
 
 StyleRecalcChange Element::recalcOwnStyle(StyleRecalcChange change)
 {
     ASSERT(document().inStyleRecalc());
     ASSERT(!parentOrShadowHostNode()->needsStyleRecalc());
     ASSERT(change >= Inherit || needsStyleRecalc());
     ASSERT(parentRenderStyle());
 
     RefPtr<RenderStyle> oldStyle = renderStyle();
@@ skipping 1734 matching lines @@
         return wrapper;
 
     CustomElementBinding* binding = perContextData->customElementBinding(customElementDefinition());
 
     wrapper->SetPrototype(binding->prototype());
 
     return V8DOMWrapper::associateObjectWithWrapperNonTemplate(this, wrapperType, wrapper, isolate);
 }
 
 } // namespace blink