AXObject::performDefaultAction() should focus if it can't click

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

 /*
  * Copyright (C) 2010 Apple Inc. All Rights Reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 23 matching lines @@
 class LayoutMenuList;
 
 class AXMenuList final : public AXLayoutObject {
   WTF_MAKE_NONCOPYABLE(AXMenuList);
 
  public:
   static AXMenuList* create(LayoutMenuList* layoutObject, AXObjectCacheImpl&);
 
   bool isCollapsed() const override;
   AccessibilityExpanded isExpanded() const final;
-  bool press() const override;
+  bool press() override;
   void clearChildren() override;
   bool nameFromContents() const override;
 
   void didUpdateActiveOption(int optionIndex);
   void didShowPopup();
   void didHidePopup();
 
  private:
   AXMenuList(LayoutMenuList*, AXObjectCacheImpl&);
 
   bool isMenuList() const override { return true; }
   AccessibilityRole determineAccessibilityRole() final;
   bool canSetFocusAttribute() const override;
 
   void addChildren() override;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXMenuList, isMenuList());
 
 }  // namespace blink
 
 #endif  // AXMenuList_h