Fix some warnings in Eclipse

java/org/chromium/distiller/DomUtil.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.
 
 package org.chromium.distiller;
 
 import com.google.gwt.core.client.JsArray;
 import com.google.gwt.core.client.JsArrayString;
 import com.google.gwt.dom.client.AnchorElement;
 import com.google.gwt.dom.client.Document;
@@ skipping 293 matching lines @@
             }
         }
         NodeList<Element> imgs = DomUtil.querySelectorAll(root, "IMG");
         for (int i = 0; i < imgs.getLength(); i++) {
             stripImageElement(ImageElement.as(imgs.getItem(i)));
         }
     }
 
     /**
      * Only keep some attributes for image elements.
-     * @param ie The image element to strip in-place.
+     * @param imgElement The image element to strip in-place.
      */
     public static void stripImageElement(ImageElement imgElement) {
         JsArray<Node> attrs = getAttributes(imgElement);
         for (int i = 0; i < attrs.length(); ) {
             String name = attrs.get(i).getNodeName();
             if (!"src".equals(name) &&
                 !"alt".equals(name) &&
                 !"srcset".equals(name) &&
                 !"dir".equals(name) &&
                 !"title".equals(name)) {
@@ skipping 20 matching lines @@
             if (elementsWithSrc[key].src) {
                 elementsWithSrc[key].src = elementsWithSrc[key].src;
             }
         }
     }-*/;
 
     /**
      * Strips some attribute from certain tags in the tree rooted at |rootNode|, including root.
      * @param tagNames The tag names to be processed. ["*"] means all.
      */
+    @SuppressWarnings("unused")

[mdjones, 2016/02/24 22:24:35]

Any idea why this is needed? The usages are in non-"native" functions.

[wychen, 2016/05/10 22:26:37]

It's tag in tagNames. Eclipse doesn't recognize tagNames are modified. This
in-place modification probably won't work in pure Java.

     public static void stripAttributeFromTags(Node rootNode, String attribute, String[] tagNames) {
         Element root = Element.as(rootNode);
         for (String tag: tagNames) {
             if (root.getTagName().equals(tag) || tag.equals("*")) {
                 root.removeAttribute(attribute);
             }
         }
 
         for (String tag: tagNames) {
             tag += "[" + attribute + "]";
@@ skipping 90 matching lines @@
     }-*/;
 
     public static native Document createHTMLDocument(Document doc) /*-{
         return doc.implementation.createHTMLDocument();
     }-*/;
 
     public static native Element getFirstElementChild(Document document) /*-{
         return document.firstElementChild;
     }-*/;
 }