posinset and setsize for input type, radio, exposed in AX tree

third_party/WebKit/Source/core/html/HTMLInputElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
@@ skipping 1741 matching lines @@
     // FIXME: Remove type check.
     if (type() != InputTypeNames::radio)
         return nullptr;
     if (HTMLFormElement* formElement = form())
         return &formElement->radioButtonGroupScope();
     if (inDocument())
         return &document().formController().radioButtonGroupScope();
     return nullptr;
 }
 
+unsigned HTMLInputElement::sizeOfRadioGroup() const
+{
+    RadioButtonGroupScope* scope = radioButtonGroupScope();
+    if (!scope)
+        return 0;
+    return scope->groupSizeFor(this);
+}
+
 inline void HTMLInputElement::addToRadioButtonGroup()
 {
     if (RadioButtonGroupScope* scope = radioButtonGroupScope())
         scope->addButton(this);
 }
 
 inline void HTMLInputElement::removeFromRadioButtonGroup()
 {
     if (RadioButtonGroupScope* scope = radioButtonGroupScope())
         scope->removeButton(this);
@@ skipping 159 matching lines @@
 void HTMLInputElement::ensurePrimaryContent()
 {
     m_inputTypeView->ensurePrimaryContent();
 }
 
 bool HTMLInputElement::hasFallbackContent() const
 {
     return m_inputTypeView->hasFallbackContent();
 }
 } // namespace blink