ARIA state/property(aria-relevant,aria-busy) are not exposed correctly on MAC.

content/browser/accessibility/browser_accessibility_cocoa.mm

 // 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 <execinfo.h>
 
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 
 #include <map>
 
@@ skipping 133 matching lines @@
       browserAccessibility_, ui::AX_ATTR_ACCESS_KEY);
 }
 
 - (NSNumber*)ariaAtomic {
   bool boolValue = browserAccessibility_->GetBoolAttribute(
       ui::AX_ATTR_LIVE_ATOMIC);
   return [NSNumber numberWithBool:boolValue];
 }
 
 - (NSNumber*)ariaBusy {
-  bool boolValue = browserAccessibility_->GetBoolAttribute(
-      ui::AX_ATTR_LIVE_BUSY);
-  return [NSNumber numberWithBool:boolValue];
+  return [NSNumber numberWithBool:
+      GetState(browserAccessibility_, ui::AX_STATE_BUSY)];
 }
 
 - (NSString*)ariaLive {
   return NSStringForStringAttribute(
       browserAccessibility_, ui::AX_ATTR_LIVE_STATUS);
 }
 
 - (NSString*)ariaRelevant {
   return NSStringForStringAttribute(
       browserAccessibility_, ui::AX_ATTR_LIVE_RELEVANT);
@@ skipping 1150 matching lines @@
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         NSAccessibilityURLAttribute,
         nil]];
   }
 
   // Live regions.
   if (browserAccessibility_->HasStringAttribute(
           ui::AX_ATTR_LIVE_STATUS)) {
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         @"AXARIALive",
+        nil]];
+  }
+  if (browserAccessibility_->HasStringAttribute(
+          ui::AX_ATTR_LIVE_RELEVANT)) {
+    [ret addObjectsFromArray:[NSArray arrayWithObjects:
         @"AXARIARelevant",
         nil]];
   }
-  if (browserAccessibility_->HasStringAttribute(
-          ui::AX_ATTR_CONTAINER_LIVE_STATUS)) {
+  if (browserAccessibility_->HasBoolAttribute(
+          ui::AX_ATTR_LIVE_ATOMIC)) {
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         @"AXARIAAtomic",
+        nil]];
+  }
+  if (browserAccessibility_->HasBoolAttribute(
+          ui::AX_ATTR_LIVE_BUSY)) {
+    [ret addObjectsFromArray:[NSArray arrayWithObjects:
         @"AXARIABusy",
         nil]];
   }
 
   //Add expanded attribute only if it has expanded or collapsed state.
-  if (GetState(browserAccessibility_,ui::AX_STATE_EXPANDED) ||
-        GetState(browserAccessibility_,ui::AX_STATE_COLLAPSED)) {
+  if (GetState(browserAccessibility_, ui::AX_STATE_EXPANDED) ||
+        GetState(browserAccessibility_, ui::AX_STATE_COLLAPSED)) {
     [ret addObjectsFromArray:[NSArray arrayWithObjects:
         NSAccessibilityExpandedAttribute,
         nil]];
   }
 
   // Title UI Element.
   if (browserAccessibility_->HasIntAttribute(ui::AX_ATTR_TITLE_UI_ELEMENT) ||
       (browserAccessibility_->HasIntListAttribute(ui::AX_ATTR_LABELLEDBY_IDS) &&
        browserAccessibility_->GetIntListAttribute(ui::AX_ATTR_LABELLEDBY_IDS)
                             .size() == 1)) {
@@ skipping 147 matching lines @@
     return [super hash];
   return browserAccessibility_->GetId();
 }
 
 - (BOOL)accessibilityShouldUseUniqueId {
   return YES;
 }
 
 @end