[SavePage] Do not save images with errors

Source/core/page/PageSerializer.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 296 matching lines @@
     String mimeType = resource->response().mimeType();
     m_resources->append(SerializedResource(url, mimeType, data));
     m_resourceURLs.add(url);
 }
 
 void PageSerializer::addImageToResources(ImageResource* image, RenderObject* imageRenderer, const KURL& url)
 {
     if (!shouldAddURL(url))
         return;
 
-    if (!image || image->image() == Image::nullImage())
+    if (!image || image->image() == Image::nullImage() || image->errorOccurred())
         return;
 
     RefPtr<SharedBuffer> data = imageRenderer ? image->imageForRenderer(imageRenderer)->data() : 0;
     if (!data)
         data = image->image()->data();
 
     addToResources(image, data, url);
 }
 
 void PageSerializer::addFontToResources(FontResource* font)
@@ skipping 51 matching lines @@
     if (iter != m_blankFrameURLs.end())
         return iter->value;
     String url = "wyciwyg://frame/" + String::number(m_blankFrameCounter++);
     KURL fakeURL(ParsedURLString, url);
     m_blankFrameURLs.add(frame, fakeURL);
 
     return fakeURL;
 }
 
 }