Devirtualize ImageQualityController and TextAutosizer destructors

Source/core/rendering/TextAutosizer.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  * Copyright (C) 2012 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.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 119 matching lines @@
     }
     return 0;
 }
 
 TextAutosizer::TextAutosizer(Document* document)
     : m_document(document)
     , m_contentType(Unknown)
 {
 }
 
-TextAutosizer::~TextAutosizer()
-{
-}
-
 void TextAutosizer::recalculateMultipliers()
 {
     RenderObject* renderer = m_document->renderer();
     while (renderer) {
         if (renderer->style() && renderer->style()->textAutosizingMultiplier() != 1)
             setMultiplier(renderer, 1);
         renderer = renderer->nextInPreOrder();
     }
 }
 
@@ skipping 574 matching lines @@
         if (i + 1 < clusterInfos.size()) {
             float currentWidth = clusterInfos[i].root->contentLogicalWidth();
             float nextWidth = clusterInfos[i + 1].root->contentLogicalWidth();
             if (currentWidth - nextWidth > maxWidthDifferenceWithinGroup)
                 groups.grow(groups.size() + 1);
         }
     }
 }
 
 } // namespace WebCore