Add an accessibility audit test for WebUI pages

chrome/test/base/js2gtest.js

Index: chrome/test/base/js2gtest.js
diff --git a/chrome/test/base/js2gtest.js b/chrome/test/base/js2gtest.js
index 9ec40a811cb06ccd5a2eca0be60cb1094c4bb111..e6f9461dbf359cb2574583bde39255dc94cb869b 100644
--- a/chrome/test/base/js2gtest.js
+++ b/chrome/test/base/js2gtest.js
@@ -152,7 +152,8 @@ function TEST_F(testFixture, testFunction, testBody) {
   var typedefCppFixture = this[testFixture].prototype.typedefCppFixture;
   var isAsyncParam = testType === 'unit' ? '' :
       this[testFixture].prototype.isAsync + ', ';
-  var testShouldFail = this[testFixture].prototype.testShouldFail;
+  var testShouldFail = this[testFixture].prototype.testShouldFail ||
+                       testFunction.match(/_shouldFail$/);
   var testPredicate = testShouldFail ? 'ASSERT_FALSE' : 'ASSERT_TRUE';
   var extraLibraries = genIncludes.concat(
       this[testFixture].prototype.extraLibraries.map(