Keep track of accessibility focus across windows.

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

 /*
  * Copyright (C) 2014, Google 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
@@ skipping 36 matching lines @@
 // This class should only be used from inside the accessibility directory.
 class MODULES_EXPORT AXObjectCacheImpl : public AXObjectCache {
     WTF_MAKE_NONCOPYABLE(AXObjectCacheImpl);
 public:
     static AXObjectCache* create(Document&);
 
     explicit AXObjectCacheImpl(Document&);
     ~AXObjectCacheImpl();
     DECLARE_VIRTUAL_TRACE();
 
-    AXObject* focusedUIElementForPage(const Page*);
+    AXObject* focusedObject();
 
     void dispose() override;
 
     void selectionChanged(Node*) override;
     void childrenChanged(Node*) override;
     void childrenChanged(LayoutObject*) override;
     void checkedStateChanged(Node*) override;
     virtual void listboxOptionStateChanged(HTMLOptionElement*);
     virtual void listboxSelectedChildrenChanged(HTMLSelectElement*);
     virtual void listboxActiveIndexChanged(HTMLSelectElement*);
@@ skipping 178 matching lines @@
 // This is the only subclass of AXObjectCache.
 DEFINE_TYPE_CASTS(AXObjectCacheImpl, AXObjectCache, cache, true, true);
 
 bool nodeHasRole(Node*, const String& role);
 // This will let you know if aria-hidden was explicitly set to false.
 bool isNodeAriaVisible(Node*);
 
 } // namespace blink
 
 #endif