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

third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp

Index: third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
diff --git a/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp b/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
index 73d29f6a1ae820776412366a50188bc00b0e5d26..d45ad15ede546d875c03c8ef7c731eebb51fd51f 100644
--- a/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
+++ b/third_party/WebKit/Source/modules/accessibility/AXObjectCacheImpl.cpp
@@ -39,6 +39,7 @@
 #include "core/html/HTMLLabelElement.h"
 #include "core/html/HTMLOptionElement.h"
 #include "core/html/HTMLSelectElement.h"
+#include "core/html/forms/FormController.h"
 #include "core/layout/LayoutListBox.h"
 #include "core/layout/LayoutMenuList.h"
 #include "core/layout/LayoutProgress.h"
@@ -65,6 +66,7 @@
 #include "modules/accessibility/AXMenuListOption.h"
 #include "modules/accessibility/AXMenuListPopup.h"
 #include "modules/accessibility/AXProgressIndicator.h"
+#include "modules/accessibility/AXRadioInput.h"
 #include "modules/accessibility/AXSVGRoot.h"
 #include "modules/accessibility/AXSlider.h"
 #include "modules/accessibility/AXSpinButton.h"
@@ -305,6 +307,9 @@ AXObject* AXObjectCacheImpl::createFromRenderer(LayoutObject* layoutObject)
     if (isHTMLOptionElement(node))
         return AXListBoxOption::create(layoutObject, *this);
 
+    if (isHTMLInputElement(node) && toHTMLInputElement(node)->isRadioButton())
+        return AXRadioInput::create(layoutObject, *this);
+
     if (layoutObject->isSVGRoot())
         return AXSVGRoot::create(layoutObject, *this);
 
@@ -922,6 +927,15 @@ void AXObjectCacheImpl::listboxActiveIndexChanged(HTMLSelectElement* select)
     toAXListBox(obj)->activeIndexChanged();
 }
 
+void AXObjectCacheImpl::radiobuttonPositionChanged(HTMLInputElement* radioinput, int position)
+{
+    AXObject* obj = get(radioinput);
+    if (!obj || !obj->isAXRadioInput())
+        return;
+
+    toAXRadioInput(obj)->posInSetChanged(position);
+}
+
 void AXObjectCacheImpl::handleLayoutComplete(LayoutObject* layoutObject)
 {
     if (!layoutObject)