Remove Dashboard support and supporting files.

Source/WebCore/html/HTMLImageLoader.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 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
  * version 2 of the License, or (at your option) any later version.
  *
@@ skipping 44 matching lines @@
         return;
 
     bool errorOccurred = image()->errorOccurred();
     if (!errorOccurred && image()->response().httpStatusCode() >= 400)
         errorOccurred = element()->hasTagName(HTMLNames::objectTag); // An <object> considers a 404 to be an error and should fire onerror.
     element()->dispatchEvent(Event::create(errorOccurred ? eventNames().errorEvent : eventNames().loadEvent, false, false));
 }
 
 String HTMLImageLoader::sourceURI(const AtomicString& attr) const
 {
-#if ENABLE(DASHBOARD_SUPPORT)
-    Settings* settings = element()->document()->settings();
-    if (settings && settings->usesDashboardBackwardCompatibilityMode() && attr.length() > 7 && attr.startsWith("url(\"") && attr.endsWith("\")"))
-        return attr.string().substring(5, attr.length() - 7);
-#endif
-
     return stripLeadingAndTrailingHTMLSpaces(attr);
 }
 
 void HTMLImageLoader::notifyFinished(CachedResource*)
 {
     CachedImage* cachedImage = image();
 
     RefPtr<Element> element = this->element();
     ImageLoader::notifyFinished(cachedImage);
 
     bool loadError = cachedImage->errorOccurred() || cachedImage->response().httpStatusCode() >= 400;
 #if USE(JSC)
     if (!loadError) {
         if (!element->inDocument()) {
             JSC::JSGlobalData* globalData = JSDOMWindowBase::commonJSGlobalData();
             JSC::JSLockHolder lock(globalData);
             globalData->heap.reportExtraMemoryCost(cachedImage->encodedSize());
         }
     }
 #endif
 
     if (loadError && element->hasTagName(HTMLNames::objectTag))
         static_cast<HTMLObjectElement*>(element.get())->renderFallbackContent();
 }
 
 }