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

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

Index: third_party/WebKit/Source/core/html/HTMLInputElement.h
diff --git a/third_party/WebKit/Source/core/html/HTMLInputElement.h b/third_party/WebKit/Source/core/html/HTMLInputElement.h
index f10e37ac5b88afd2e8a51fb87ecf40385bf45735..453a646547b466f343e87259ed9bc75022bbf85e 100644
--- a/third_party/WebKit/Source/core/html/HTMLInputElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLInputElement.h
@@ -266,6 +266,10 @@ public:
     bool isPlaceholderVisible() const override { return m_isPlaceholderVisible; }
     void setPlaceholderVisibility(bool) override;
 
+    void setPositionInRadioGroup(unsigned position) { m_positonInRadio = position; }
+    unsigned positionInRadioGroup();
+    unsigned sizeOfRadioGroup();
+
 protected:
     HTMLInputElement(Document&, HTMLFormElement*, bool createdByParser);
 
@@ -376,6 +380,7 @@ private:
     int m_size;
     int m_maxLength;
     int m_minLength;
+    unsigned m_positonInRadio;
     short m_maxResults;
     unsigned m_isChecked : 1;
     unsigned m_reflectsCheckedAttribute : 1;