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

third_party/WebKit/Source/modules/accessibility/AXMenuListPopup.cpp

 /*
  * 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 66 matching lines @@
     return -1;
 
   Node* parentNode = m_parent->getNode();
   if (!isHTMLSelectElement(parentNode))
     return -1;
 
   HTMLSelectElement* htmlSelectElement = toHTMLSelectElement(parentNode);
   return htmlSelectElement->selectedIndex();
 }
 
-bool AXMenuListPopup::press() const {
+bool AXMenuListPopup::press() {
   if (!m_parent)
     return false;
 
   m_parent->press();
   return true;
 }
 
 void AXMenuListPopup::addChildren() {
   ASSERT(!isDetached());
   if (!m_parent)
@@ skipping 69 matching lines @@
 }
 
 AXObject* AXMenuListPopup::activeDescendant() {
   if (m_activeIndex < 0 || m_activeIndex >= static_cast<int>(children().size()))
     return nullptr;
 
   return m_children[m_activeIndex].get();
 }
 
 }  // namespace blink