Fix crashes on iOS related to using window.performance and reading window.location.href in a UIWebV…

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 94 matching lines @@
     /*
      * We want to use jsni for direct access to javascript's innerText.  This avoids GWT's
      * implementation of Element::getInnerText(), which is intentionally different to mimic an old
      * IE behaviour, which returns text within <script> tags.
      */
     public static native String getInnerText(Node node) /*-{
         return node.innerText;
     }-*/;
 
     public static native double getTime() /*-{
-        // window.performance is unavailable in Gwt's dev environment.
-        if (window.performance) {
+        // window.performance is unavailable in Gwt's dev environment and even referencing it on iOS
+        // causes a crash.
+        if ((typeof distiller_on_ios === 'undefined' || !distiller_on_ios) && window.performance) {
           return window.performance.now();
         }
         return Date.now();
     }-*/;
 
     /**
      * Use jsni for direct access to javascript's textContent.  textContent is different from
      * innerText (see http://www.kellegous.com/j/2013/02/27/innertext-vs-textcontent):
      * - textContent is the raw textual content, doesn't require layout, and is basically a
      *   concatenation of the values of all text nodes within a subtree.
@@ skipping 266 matching lines @@
     }-*/;
 
     public static native Document createHTMLDocument(Document doc) /*-{
         return doc.implementation.createHTMLDocument();
     }-*/;
 
     public static native Element getFirstElementChild(Document document) /*-{
         return document.firstElementChild;
     }-*/;
 }