Make brokenImage() a static member of ImageResource class

Source/core/fetch/ImageResource.cpp

 /*
     Copyright (C) 1998 Lars Knoll (knoll@mpi-hd.mpg.de)
     Copyright (C) 2001 Dirk Mueller (mueller@kde.org)
     Copyright (C) 2002 Waldo Bastian (bastian@kde.org)
     Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
     Copyright (C) 2004, 2005, 2006, 2007 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
@@ skipping 109 matching lines @@
 }
 
 void ImageResource::allClientsRemoved()
 {
     m_pendingContainerSizeRequests.clear();
     if (m_image && !errorOccurred())
         m_image->resetAnimation();
     Resource::allClientsRemoved();
 }
 
-pair<WebCore::Image*, float> ImageResource::brokenImage(float deviceScaleFactor) const
+pair<WebCore::Image*, float> ImageResource::brokenImage(float deviceScaleFactor)
 {
     if (deviceScaleFactor >= 2) {
-        DEFINE_STATIC_LOCAL(WebCore::Image*, brokenImageHiRes, (WebCore::Image::loadPlatformResource("missingImage@2x").leakRef()));
-        return std::make_pair(brokenImageHiRes, 2);
+        DEFINE_STATIC_LOCAL(RefPtr<WebCore::Image>, brokenImageHiRes, (WebCore::Image::loadPlatformResource("missingImage@2x")));
+        return std::make_pair(brokenImageHiRes.get(), 2);
     }
 
-    DEFINE_STATIC_LOCAL(WebCore::Image*, brokenImageLoRes, (WebCore::Image::loadPlatformResource("missingImage").leakRef()));
-    return std::make_pair(brokenImageLoRes, 1);
+    DEFINE_STATIC_LOCAL(RefPtr<WebCore::Image>, brokenImageLoRes, (WebCore::Image::loadPlatformResource("missingImage")));
+    return std::make_pair(brokenImageLoRes.get(), 1);
 }
 
 bool ImageResource::willPaintBrokenImage() const
 {
     return errorOccurred();
 }
 
 WebCore::Image* ImageResource::image()
 {
     ASSERT(!isPurgeable());
@@ skipping 293 matching lines @@
 
 bool ImageResource::currentFrameKnownToBeOpaque(const RenderObject* renderer)
 {
     WebCore::Image* image = imageForRenderer(renderer);
     if (image->isBitmapImage())
         image->nativeImageForCurrentFrame(); // force decode
     return image->currentFrameKnownToBeOpaque();
 }
 
 } // namespace WebCore