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

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

Index: third_party/WebKit/Source/core/html/HTMLInputElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLInputElement.cpp b/third_party/WebKit/Source/core/html/HTMLInputElement.cpp
index 03cba21d8ca1fabba0b517620be266004b48713b..688653cc5d60ef1d20db5dc0e563ee4b9c43c82d 100644
--- a/third_party/WebKit/Source/core/html/HTMLInputElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLInputElement.cpp
@@ -1749,6 +1749,22 @@ RadioButtonGroupScope* HTMLInputElement::radioButtonGroupScope() const
     return nullptr;
 }
 
+unsigned HTMLInputElement::posInRadioGroup()
+{
+    RadioButtonGroupScope* scope = radioButtonGroupScope();
+    if (!scope)
+        return 0;
+    return scope->posInGroup(this);
+}
+
+unsigned HTMLInputElement::sizeOfRadioGroup()
+{
+    RadioButtonGroupScope* scope = radioButtonGroupScope();
+    if (!scope)
+        return 0;
+    return scope->sizeOfGroup(this);
+}
+
 inline void HTMLInputElement::addToRadioButtonGroup()
 {
     if (RadioButtonGroupScope* scope = radioButtonGroupScope())