Extract image URLs in srcset as well

java/org/chromium/distiller/DocumentTitleGetter.java

 // Copyright 2014 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.
 
 /*
  * Parts of this file are adapted from Readability.
  *
  * Readability is Copyright (c) 2010 Src90 Inc
  * and licensed under the Apache License, Version 2.0.
  */
@@ skipping 28 matching lines @@
         if (objTitle.getClass() == currTitle.getClass()) {  // If objTitle is of String type.
             currTitle = origTitle = objTitle.toString();
         } else if (root != null) {  // Otherwise, use text of first TITLE element.
             NodeList<Element> titles = root.getElementsByTagName("TITLE");
             if (titles.getLength() > 0) {
               // Use javascript textContent instead of javascript innerText; the latter only returns
               // visible text, but <title> tags are invisible.
               currTitle = origTitle = DomUtil.javascriptTextContent(titles.getItem(0));
             }
         }
-        if (currTitle == "") return "";
+        if (currTitle.isEmpty()) return "";
 
         if (StringUtil.match(currTitle, " [\\|\\-] ")) {  // Title has '|' and/or '-'.
             // Get part before last '|' or '-'.
             currTitle = StringUtil.findAndReplace(origTitle, "(.*)[\\|\\-] .*", "$1");
             if (StringUtil.countWords(currTitle) < 3) {  // Part has < 3 words.
                 // Get part after first '|' or '-'.
                 currTitle = StringUtil.findAndReplace(origTitle, "[^\\|\\-]*[\\|\\-](.*)", "$1");
             }
         } else if (currTitle.indexOf(": ") != -1) {  // Title has ':'.
             // Get part after last ':'.
@@ skipping 23 matching lines @@
         NodeList<Element> hOnes = root.getElementsByTagName("H1");
         // Use javascript innerText instead of javascript textContent; the former only returns
         // visible text, and we assume visible H1's are more inclined to being potential titles.
         String h1 = "";
         for (int i = 0; i < hOnes.getLength() && h1.isEmpty(); i++) {
             h1 = DomUtil.getInnerText(hOnes.getItem(i));
         }
         return h1;
     }
 }