Compile-fix for mac.

Source/core/loader/cache/CachedImage.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 19 matching lines @@
 #include "CachedResourceClientWalker.h"
 #include "CachedResourceLoader.h"
 #include "FrameLoaderTypes.h"
 #include "FrameView.h"
 #include "MemoryCache.h"
 #include "Page.h"
 #include "RenderObject.h"
 #include "ResourceLoader.h"
 #include "RuntimeEnabledFeatures.h"
 #include "Settings.h"
+#include "SharedBuffer.h"
 #include <wtf/CurrentTime.h>
 #include <wtf/MemoryInstrumentationHashMap.h>
 #include <wtf/MemoryObjectInfo.h>
 #include <wtf/StdLibExtras.h>
 #include <wtf/Vector.h>
 
 #if ENABLE(SVG)
 #include "SVGImage.h"
 #endif
 
@@ skipping 424 matching lines @@
 
 bool CachedImage::currentFrameKnownToBeOpaque(const RenderObject* renderer)
 {
     Image* image = imageForRenderer(renderer);
     if (image->isBitmapImage())
         image->nativeImageForCurrentFrame(); // force decode
     return image->currentFrameKnownToBeOpaque();
 }
 
 } // namespace WebCore