Remove ancestor walk for non-SVG RenderObjects in willBeRemovedFromTree()

Source/core/rendering/RenderObject.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  *           (C) 2004 Allan Sandfeld Jensen (kde@carewolf.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2009 Google Inc. All rights reserved.
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 2628 matching lines @@
 
     if (isOutOfFlowPositioned() && parent()->childrenInline())
         parent()->dirtyLinesFromChangedChild(this);
 
     removeFromRenderFlowThread();
 
     if (RenderNamedFlowThread* containerFlowThread = parent()->renderNamedFlowThreadWrapper())
         containerFlowThread->removeFlowChild(this);
 
     // Update cached boundaries in SVG renderers if a child is removed.
-    parent()->setNeedsBoundariesUpdate();
+    if (parent()->isSVG())
+        parent()->setNeedsBoundariesUpdate();
 }
 
 void RenderObject::removeFromRenderFlowThread()
 {
     if (flowThreadState() == NotInsideFlowThread)
         return;
 
     // Sometimes we remove the element from the flow, but it's not destroyed at that time.
     // It's only until later when we actually destroy it and remove all the children from it.
     // Currently, that happens for firstLetter elements and list markers.
@@ skipping 730 matching lines @@
 {
     if (object1) {
         const WebCore::RenderObject* root = object1;
         while (root->parent())
             root = root->parent();
         root->showRenderTreeAndMark(object1, "*", object2, "-", 0);
     }
 }
 
 #endif