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

chrome/test/data/webui/test_api.js

Index: chrome/test/data/webui/test_api.js
diff --git a/chrome/test/data/webui/test_api.js b/chrome/test/data/webui/test_api.js
index a4428414559aeb6c3c346536fe40ae3d6ea5677e..f630166c1ebe82d64a10ab97cc4088954c8d01f8 100644
--- a/chrome/test/data/webui/test_api.js
+++ b/chrome/test/data/webui/test_api.js
@@ -172,8 +172,7 @@ var testing = {};
       // 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;
@@ -193,6 +192,10 @@ var testing = {};
             // 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_;