Add AX attribute for input type

Source/core/accessibility/AXNodeObject.cpp

Index: Source/core/accessibility/AXNodeObject.cpp
diff --git a/Source/core/accessibility/AXNodeObject.cpp b/Source/core/accessibility/AXNodeObject.cpp
index ce70d6128ac332de4590dd5abf5863f8d81a24e4..5cc9032b6296b412eb5fb2beecd5b174f9808008 100644
--- a/Source/core/accessibility/AXNodeObject.cpp
+++ b/Source/core/accessibility/AXNodeObject.cpp
@@ -1058,6 +1058,19 @@ String AXNodeObject::stringValue() const
     return String();
 }
 
+
+const AtomicString& AXNodeObject::textInputType() const
+{
+    Node* node = this->node();
+    if (!isHTMLInputElement(node))
+        return nullAtom;
+
+    HTMLInputElement& input = toHTMLInputElement(*node);
+    if (input.isTextField())
+        return input.type();
+    return nullAtom;
+}
+
 String AXNodeObject::ariaDescribedByAttribute() const
 {
     WillBeHeapVector<RawPtrWillBeMember<Element> > elements;