Always return a subrole when the Mac accessibility role is AXList.

content/browser/accessibility/dump_accessibility_tree_browsertest.cc

 // 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.
 
 #include <set>
 #include <string>
 #include <vector>
 
 #include "base/command_line.h"
 #include "base/file_util.h"
@@ skipping 279 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
                        AccessibilityAriaLabelledByHeading) {
   RunTest(FILE_PATH_LITERAL("aria-labelledby-heading.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaLevel) {
   RunTest(FILE_PATH_LITERAL("aria-level.html"));
 }
 
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaList) {
+  RunTest(FILE_PATH_LITERAL("aria-list.html"));
+}
+
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityAriaMenu) {
   RunTest(FILE_PATH_LITERAL("aria-menu.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
                        AccessibilityAriaMenuitemradio) {
   RunTest(FILE_PATH_LITERAL("aria-menuitemradio.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
@@ skipping 213 matching lines @@
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest, AccessibilityWbr) {
   RunTest(FILE_PATH_LITERAL("wbr.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityTreeTest,
                        AccessibilityAriaActivedescendant) {
   RunTest(FILE_PATH_LITERAL("aria-activedescendant.html"));
 }
 
 }  // namespace content