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

third_party/WebKit/Source/core/html/forms/InputType.cpp

Index: third_party/WebKit/Source/core/html/forms/InputType.cpp
diff --git a/third_party/WebKit/Source/core/html/forms/InputType.cpp b/third_party/WebKit/Source/core/html/forms/InputType.cpp
index f59d4c75ac4d546a509443ff4a21701d5b096352..3e395e7447c0b9301948d9b5f540a399622e3a44 100644
--- a/third_party/WebKit/Source/core/html/forms/InputType.cpp
+++ b/third_party/WebKit/Source/core/html/forms/InputType.cpp
@@ -653,6 +653,11 @@ bool InputType::isImage() const
     return false;
 }
 
+bool InputType::isRadioButton() const
+{
+    return false;
+}
+
 bool InputType::isInteractiveContent() const
 {
     return true;