Fix web_accesible_resources enforcement for Site Isolation.

chrome/test/data/extensions/platform_apps/web_view/shim/main.js

 // Copyright (c) 2012 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.
 
 var util = {};
 var embedder = {};
 embedder.baseGuestURL = '';
 embedder.emptyGuestURL = '';
 embedder.windowOpenGuestURL = '';
 embedder.noReferrerGuestURL = '';
@@ skipping 1958 matching lines @@
   });
   document.body.appendChild(webview);
 }
 
 // This test verifies that the loadabort event fires when loading a webview
 // accessible resource from a partition that is not privileged.
 function testLoadAbortChromeExtensionURLWrongPartition() {
   var localResource = chrome.runtime.getURL('guest.html');
   var webview = document.createElement('webview');
   webview.addEventListener('loadabort', function(e) {
-    embedder.test.assertEq(-109, e.code);
-    embedder.test.assertEq('ERR_ADDRESS_UNREACHABLE', e.reason);
+    embedder.test.assertEq(-20, e.code);
+    embedder.test.assertEq('ERR_BLOCKED_BY_CLIENT', e.reason);
     embedder.test.succeed();
   });
   webview.addEventListener('loadstop', function(e) {
     embedder.test.fail();
   });
   webview.setAttribute('src', localResource);
   document.body.appendChild(webview);
 }
 
 // This test verifies that the loadabort event fires as expected and with the
@@ skipping 1078 matching lines @@
   'testRendererNavigationRedirectWhileUnattached':
        testRendererNavigationRedirectWhileUnattached
 };
 
 onload = function() {
   chrome.test.getConfig(function(config) {
     embedder.setUp_(config);
     chrome.test.sendMessage("Launched");
   });
 };