AXRoleDescriptions are not correctly exposed for dl, dd, dt tags

content/browser/accessibility/browser_accessibility_cocoa.mm

Index: content/browser/accessibility/browser_accessibility_cocoa.mm
diff --git a/content/browser/accessibility/browser_accessibility_cocoa.mm b/content/browser/accessibility/browser_accessibility_cocoa.mm
index f433db3fceeb5b8d701b2b0f7e4d119a46e30783..f62404b0d71604ef58f1cb963161aa148734b51c 100644
--- a/content/browser/accessibility/browser_accessibility_cocoa.mm
+++ b/content/browser/accessibility/browser_accessibility_cocoa.mm
@@ -591,6 +591,15 @@ NSDictionary* attributeToMethodNameMap = nil;
   case ui::AX_ROLE_CONTENT_INFO:
     return base::SysUTF16ToNSString(content_client->GetLocalizedString(
         IDS_AX_ROLE_ADDRESS));
+  case ui::AX_ROLE_DESCRIPTION_LIST:
+    return base::SysUTF16ToNSString(content_client->GetLocalizedString(
+        IDS_AX_ROLE_DESCRIPTION_LIST));
+  case ui::AX_ROLE_DESCRIPTION_LIST_DETAIL:
+    return base::SysUTF16ToNSString(content_client->GetLocalizedString(
+        IDS_AX_ROLE_DESCRIPTION_DETAIL));
+  case ui::AX_ROLE_DESCRIPTION_LIST_TERM:
+    return base::SysUTF16ToNSString(content_client->GetLocalizedString(
+        IDS_AX_ROLE_DESCRIPTION_TERM));
   case ui::AX_ROLE_FOOTER:
     return base::SysUTF16ToNSString(content_client->GetLocalizedString(
         IDS_AX_ROLE_FOOTER));
@@ -720,7 +729,7 @@ NSDictionary* attributeToMethodNameMap = nil;
   }
 
   if (browserAccessibilityRole == ui::AX_ROLE_DESCRIPTION_LIST)
-    return @"AXDescriptionList";
+    return @"AXDefinitionList";
 
   if (browserAccessibilityRole == ui::AX_ROLE_LIST)
     return @"AXContentList";