Add AX attribute for input type

Source/core/accessibility/AXNodeObject.h

 /*
  * Copyright (C) 2012, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 136 matching lines @@
     virtual AXObject* titleUIElement() const OVERRIDE;
 
     // Properties of interactive elements.
     virtual AccessibilityButtonState checkboxOrRadioValue() const OVERRIDE FINAL;
     virtual void colorValue(int& r, int& g, int& b) const OVERRIDE FINAL;
     virtual String valueDescription() const OVERRIDE;
     virtual float valueForRange() const OVERRIDE;
     virtual float maxValueForRange() const OVERRIDE;
     virtual float minValueForRange() const OVERRIDE;
     virtual String stringValue() const OVERRIDE;
+    virtual const AtomicString& textInputType() const OVERRIDE;
 
     // ARIA attributes.
     virtual String ariaDescribedByAttribute() const OVERRIDE FINAL;
     virtual String ariaLabeledByAttribute() const OVERRIDE FINAL;
     virtual AccessibilityRole ariaRoleAttribute() const OVERRIDE FINAL;
 
     // Accessibility Text.
     virtual String textUnderElement() const OVERRIDE;
 
     // Accessibility Text - (To be deprecated).
@@ skipping 41 matching lines @@
     void ariaLabeledByText(Vector<AccessibilityText>&) const;
     void changeValueByPercent(float percentChange);
     float stepValueForRange() const;
 };
 
 DEFINE_AX_OBJECT_TYPE_CASTS(AXNodeObject, isAXNodeObject());
 
 } // namespace blink
 
 #endif // AXNodeObject_h