[a11y] Bring accessibility-audit up to date: v2.10.0 release.

chrome/test/data/webui/test_api.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.
 
 /**
  * @fileoverview Library providing basic test framework functionality.
  */
 
 /**
  * Namespace for |Test|.
@@ skipping 154 matching lines @@
     /**
      * Returns the configuration for the accessibility audit, creating it
      * on-demand.
      * @return {axs.AuditConfiguration}
      */
     get accessibilityAuditConfig() {
       // The axs namespace is not available in chromevox tests.
       // Further, 'window' is not available in unit tests, but since the
       // accessibility audit library pulls in the closure library,
       // 'goog.global' has to be present if axs is, so we use that here.
-      if (!this.accessibilityAuditConfig_ &&
-          goog && goog.global && goog.global.axs) {
+      if (!this.accessibilityAuditConfig_) {
         this.accessibilityAuditConfig_ = new axs.AuditConfiguration();
 
         this.accessibilityAuditConfig_.showUnsupportedRulesWarning = false;
 
         this.accessibilityAuditConfig_.auditRulesToIgnore = [
             // The "elements with meaningful background image" accessibility
             // audit (AX_IMAGE_01) does not apply, since Chrome doesn't
             // disable background images in high-contrast mode like some
             // browsers do.
             "elementsWithMeaningfulBackgroundImage",
 
             // Most WebUI pages are inside an IFrame, so the "web page should
             // have a title that describes topic or purpose" test (AX_TITLE_01)
             // generally does not apply.
             "pageWithoutTitle",
 
             // TODO(aboxhall): re-enable when crbug.com/267035 is fixed.
             // Until then it's just noise.
             "lowContrastElements",
+
+            // TODO(aboxhall): re-enable when following issue is fixed.
+            // github.com/GoogleChrome/accessibility-developer-tools/issues/251
+            "tableHasAppropriateHeaders",
         ];
       }
       return this.accessibilityAuditConfig_;
     },
 
     /**
      * Whether to treat accessibility issues (errors or warnings) as test
      * failures. If true, any accessibility issues will cause the test to fail.
      * If false, accessibility issues will cause a console.warn.
      * Off by default to begin with; as we add the ability to suppress false
@@ skipping 1623 matching lines @@
   exports.TEST = TEST;
   exports.TEST_F = TEST_F;
   exports.RUNTIME_TEST_F = TEST_F;
   exports.GEN = GEN;
   exports.GEN_INCLUDE = GEN_INCLUDE;
   exports.WhenTestDone = WhenTestDone;
 
   // Import the Mock4JS helpers.
   Mock4JS.addMockSupport(exports);
 })(this);