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 b0560ed4fb65c069646751b8bda6090eb5621d40..6bac645cd81c354727d05926476de3b3876c1946 100644
--- a/third_party/WebKit/Source/core/html/HTMLInputElement.h
+++ b/third_party/WebKit/Source/core/html/HTMLInputElement.h
@@ -95,6 +95,8 @@ public:
 
     bool isImage() const;
 
+    bool isRadioButton() const;
+
     bool checked() const;
     void setChecked(bool, TextFieldEventBehavior = DispatchNoEvent);
     void dispatchChangeEventIfNeeded();
@@ -267,6 +269,10 @@ public:
     bool isPlaceholderVisible() const override { return m_isPlaceholderVisible; }
     void setPlaceholderVisibility(bool) override;
 
+    unsigned sizeOfRadioGroup() const;
+    void updateAXPositionInRadioGroup() const;
+    void setNeedToUpdateAXPosition(bool) const;
+
 protected:
     HTMLInputElement(Document&, HTMLFormElement*, bool createdByParser);