Adds AXExpandedChanged for general roles.

content/browser/accessibility/dump_accessibility_events_browsertest.cc

 // Copyright (c) 2014 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 <stddef.h>
 
 #include <set>
 #include <string>
 #include <vector>
 
@@ skipping 180 matching lines @@
                        AccessibilityEventsCSSVisibility) {
   RunEventTest(FILE_PATH_LITERAL("css-visibility.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
                        AccessibilityEventsDescriptionChange) {
   RunEventTest(FILE_PATH_LITERAL("description-change.html"));
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
+                       AccessibilityEventsExpandedChange) {
+  RunEventTest(FILE_PATH_LITERAL("expanded-change.html"));
+}
+
+IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
                        AccessibilityEventsInnerHtmlChange) {
   RunEventTest(FILE_PATH_LITERAL("inner-html-change.html"));
 }
 
 #if defined(OS_MACOSX)
 // Mac failures: http://crbug.com/598527.
 #define MAYBE_AccessibilityEventsInputTypeTextValueChanged \
     DISABLED_AccessibilityEventsInputTypeTextValueChanged
 #else
 #define MAYBE_AccessibilityEventsInputTypeTextValueChanged \
@@ skipping 59 matching lines @@
 }
 
 IN_PROC_BROWSER_TEST_F(DumpAccessibilityEventsTest,
                        AccessibilityEventsTextChanged) {
   RunEventTest(FILE_PATH_LITERAL("text-changed.html"));
 }
 
 #endif  // defined(OS_WIN)
 
 }  // namespace content