Adds WebElement::imageContents()

public/web/WebElement.h

 /*
  * Copyright (C) 2009 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 66 matching lines @@
         // element that has the lang attribute set, or from the HTTP
         // "Content-Language" header as a fallback.
         WEBKIT_EXPORT WebString computeInheritedLanguage() const;
 
         // Returns the bounds of the element in viewport space. The bounds
         // have been adjusted to include any transformations. This view is
         // also called the Root View in WebKit.
         // This function will update the layout if required.
         WEBKIT_EXPORT WebRect boundsInViewportSpace();
 
+        // Returns the image contents of this element or a null WebImage
+        // if there isn't any.
+        WEBKIT_EXPORT WebImage imageContents();
+
 #if WEBKIT_IMPLEMENTATION
         WebElement(const WTF::PassRefPtr<WebCore::Element>&);
         WebElement& operator=(const WTF::PassRefPtr<WebCore::Element>&);
         operator WTF::PassRefPtr<WebCore::Element>() const;
 #endif
     };
 
 } // namespace WebKit
 
 #endif