Code cleanup: Removing redundant function calls from loadPendingImage().

Source/core/rendering/RenderImageResource.cpp

 /*
  * Copyright (C) 1999 Lars Knoll <knoll@kde.org>
  * Copyright (C) 1999 Antti Koivisto <koivisto@kde.org>
  * Copyright (C) 2000 Dirk Mueller <mueller@kde.org>
  * Copyright (C) 2006 Allan Sandfeld Jensen <kde@carewolf.com>
  * Copyright (C) 2006 Samuel Weinig <sam.weinig@gmail.com>
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2009, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2010 Patrick Gansterer <paroga@paroga.com>
  *
@@ skipping 79 matching lines @@
         m_renderer->repaint();
 }
 
 void RenderImageResource::setContainerSizeForRenderer(const IntSize& imageContainerSize)
 {
     ASSERT(m_renderer);
     if (m_cachedImage)
         m_cachedImage->setContainerSizeForRenderer(m_renderer, imageContainerSize, m_renderer->style()->effectiveZoom());
 }
 
-Image* RenderImageResource::nullImage()
-{
-    return Image::nullImage();
-}
-
 LayoutSize RenderImageResource::getImageSize(float multiplier, ImageResource::SizeType type) const
 {
     if (!m_cachedImage)
         return LayoutSize();
     LayoutSize size = m_cachedImage->imageSizeForRenderer(m_renderer, multiplier, type);
     if (m_renderer && m_renderer->isRenderImage())
         size.scale(toRenderImage(m_renderer)->imageDevicePixelRatio());
     return size;
 }
 
 } // namespace WebCore