AX checked state changes

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.
 
 #import "content/browser/accessibility/browser_accessibility_cocoa.h"
 
 #include <execinfo.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <string.h>
@@ skipping 1867 matching lines @@
 
     if (isMixed)
       value = 2;
 
     return [NSNumber numberWithInt:value];
 
   } else if ([role isEqualToString:NSAccessibilityCheckBoxRole] ||
              [role isEqualToString:NSAccessibilityRadioButtonRole] ||
              [self internalRole] == ui::AX_ROLE_MENU_ITEM_CHECK_BOX ||
              [self internalRole] == ui::AX_ROLE_MENU_ITEM_RADIO) {
-    int value = 0;
-    value = GetState(
-        browserAccessibility_, ui::AX_STATE_CHECKED) ? 1 : 0;
-    value = GetState(
-        browserAccessibility_, ui::AX_STATE_SELECTED) ?
-            1 :
-            value;
-
-    if (browserAccessibility_->GetBoolAttribute(ui::AX_ATTR_STATE_MIXED)) {
-      value = 2;
+    int value;
+    const auto checkedState = static_cast<ui::AXCheckedState>(
+        browserAccessibility_->GetIntAttribute(ui::AX_ATTR_CHECKED_STATE));
+    switch (checkedState) {
+      case ui::AX_CHECKED_STATE_TRUE:
+        value = 1;
+        break;
+      case ui::AX_CHECKED_STATE_MIXED:
+        value = 2;
+        break;
+      default:
+        value = GetState(browserAccessibility_, ui::AX_STATE_SELECTED) ? 1 : 0;
+        break;
     }
     return [NSNumber numberWithInt:value];
   } else if ([role isEqualToString:NSAccessibilityProgressIndicatorRole] ||
              [role isEqualToString:NSAccessibilitySliderRole] ||
              [role isEqualToString:NSAccessibilityIncrementorRole] ||
              [role isEqualToString:NSAccessibilityScrollBarRole]) {
     float floatValue;
     if (browserAccessibility_->GetFloatAttribute(
             ui::AX_ATTR_VALUE_FOR_RANGE, &floatValue)) {
       return [NSNumber numberWithFloat:floatValue];
@@ skipping 988 matching lines @@
 }
 
 - (BOOL)accessibilityNotifiesWhenDestroyed {
   // Indicate that BrowserAccessibilityCocoa will post a notification when it's
   // destroyed (see -detach). This allows VoiceOver to do some internal things
   // more efficiently.
   return YES;
 }
 
 @end