Make sure lazily-loaded images have absolute URL

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.Element;
 import com.google.gwt.dom.client.ImageElement;
 import com.google.gwt.dom.client.NodeList;
 
 import org.chromium.distiller.DomUtil;
 
 import java.util.ArrayList;
 import java.util.List;
 
 /**
  * WebImage represents an image in the WebDocument potentially needing extraction.
  */
 public class WebImage extends WebElement {
     // The main image element. Could be <img>, or <picture> containing <img>.
     Element imgElement;
-    // The absolute source of the image.
+    // The source of the image. Could be relative before cloneAndProcessNode().
     private String srcUrl;
     // The original width of the image in pixels.
     private int width;
     // The original height of the image in pixels.
     private int height;
     // Cloned and processed element.
     private Element clonedImg;
 
     private static final String[] LAZY_SRCSET_ATTRIBUTES =
             {"data-srcset"};
@@ skipping 14 matching lines @@
             srcUrl = "";
         }
     }
 
     private void cloneAndProcessNode() {
         Element cloned = Element.as(imgElement.cloneNode(true));
         ImageElement ie = ImageElement.as(
                 DomUtil.getFirstElementByTagNameInc(cloned, "IMG"));
         if (!srcUrl.isEmpty()) {
             ie.setSrc(srcUrl);
+            srcUrl = ie.getSrc();
         }
         // If computed width or height is zero, do not override them
         // to keep them visible.
         if (width > 0 && height > 0) {
             ie.setWidth(width);
             ie.setHeight(height);
         }
         DomUtil.stripImageElement(ie);
 
         NodeList<Element> srcs = cloned.getElementsByTagName("SOURCE");
@@ skipping 64 matching lines @@
         return list;
     }
 
     protected Element getProcessedNode() {
         if (clonedImg == null) {
             cloneAndProcessNode();
         }
         return clonedImg;
     }
 }