PDF: Use custom iconsets instead of iron-icons

chrome/test/data/pdf/material_elements_test.js

 // 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.
 
 /**
  * Standalone unit tests of the PDF Polymer elements.
  */
 var tests = [
   /**
    * Test that viewer-page-selector reacts correctly to text entry. The page
@@ skipping 142 matching lines @@
       lastEvent = e.type;
     }
     var assertEvent = function(type) {
       chrome.test.assertEq(type, lastEvent);
       lastEvent = null;
     }
     zoomToolbar.addEventListener('fit-to-width', logEvent);
     zoomToolbar.addEventListener('fit-to-page', logEvent);
 
     // Initial: Show fit-to-page.
-    chrome.test.assertEq(fitPageIcon, fab.icon);
+    // TODO(tsergeant): This assertion attempts to be resilient to iconset
+    // changes. A better solution is something like
+    // https://github.com/PolymerElements/iron-icon/issues/68.
+    chrome.test.assertTrue(fab.icon.endsWith(fitPageIcon));
 
     // Tap 1: Fire fit-to-page, show fit-to-width.
     MockInteractions.tap(fab);
     assertEvent('fit-to-page');
-    chrome.test.assertEq(fitWidthIcon, fab.icon);
+    chrome.test.assertTrue(fab.icon.endsWith(fitWidthIcon));
 
     // Tap 2: Fire fit-to-width, show fit-to-page.
     MockInteractions.tap(fab);
     assertEvent('fit-to-width');
-    chrome.test.assertEq(fitPageIcon, fab.icon);
+    chrome.test.assertTrue(fab.icon.endsWith(fitPageIcon));
 
     // Tap 3: Fire fit-to-page again.
     MockInteractions.tap(fab);
     assertEvent('fit-to-page');
 
     chrome.test.succeed();
   }
 ];
 
 importTestHelpers().then(function() {
   chrome.test.runTests(tests);
 });