Add support for figure element

java/org/chromium/distiller/webdocument/WebImage.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.distiller.webdocument;
 
 import com.google.gwt.dom.client.Document;
 import com.google.gwt.dom.client.Element;
 import com.google.gwt.dom.client.ImageElement;
 
@@ skipping 92 matching lines @@
      */
     public List<String> getUrlList() {
         if (clonedImg == null) {
             cloneAndProcessNode();
         }
         List<String> list = new ArrayList<>();
         list.add(srcUrl);
         list.addAll(DomUtil.getSrcSetUrls(clonedImg));
         return list;
     }
+
+    protected ImageElement getProcessedNode() {
+        if (clonedImg == null) {
+            cloneAndProcessNode();
+        }
+        return clonedImg;
+    }
 }