[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 153 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.

[Peter Lundblad, 2015/11/23 12:54:46]

Please update this comment to reflect the change below. When I added the
comment and check you remove here, the tests couldn't runb because the audit
library wasn't included, so axs wasn't available. But now it seems like it is
included all the time?  In any case, since the audit library has stopped
leaking its own closure library, I think including it in all tests should
be harmless.
With this simplification, you could also change the type of this property to
non-nullable and change setUp back to assuem it is not null.

[apacible, 2015/11/24 18:03:46]

Done.

-      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);