--- WebCore/platform/graphics/BitmapImage.cpp.orig	2009-03-04 03:34:16.000000000 +0800
+++ WebCore/platform/graphics/BitmapImage.cpp	2009-05-19 15:09:51.000000000 +0800
@@ -202,7 +202,7 @@ bool BitmapImage::isSizeAvailable()
 NativeImagePtr BitmapImage::frameAtIndex(size_t index)
 {
     if (index >= frameCount())
-        return 0;
+        return NULL;
 
     if (index >= m_frames.size() || !m_frames[index].m_frame)
         cacheFrame(index);