Aria-details takes an ID reference, not an ID reference list

third_party/WebKit/Source/modules/accessibility/AXObject.h

 // Copyright 2017 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.
 
 #ifndef AXObject_h
 #define AXObject_h
 
 #include "core/CoreExport.h"
 
 namespace blink {
@@ skipping 228 matching lines @@
   kTextStyleLineThrough = 1 << 3
 };
 
 enum class AXStringAttribute {
   kAriaKeyShortcuts,
   kAriaRoleDescription,
 };
 
 enum class AXObjectAttribute {
   kAriaActiveDescendant,
+  kAriaDetails,
   kAriaErrorMessage,
 };
 
 enum class AXObjectVectorAttribute {
   kAriaControls,
-  kAriaDetails,
   kAriaFlowTo,
 };
 
 // The source of the accessible name of an element. This is needed
 // because on some platforms this determines how the accessible name
 // is exposed.
 enum AXNameFrom {
   kAXNameFromUninitialized = -1,
   kAXNameFromAttribute = 0,
   kAXNameFromAttributeExplicitlyEmpty,
@@ skipping 15 matching lines @@
   kAXDescriptionFromRelatedElement,
 };
 
 // TODO(sashab): Add pure virtual methods to this class to remove dependencies
 // on AXObjectImpl from outside of modules/.
 class CORE_EXPORT AXObject {};
 
 }  // namespace blink
 
 #endif  // AXObject_h