Make InputType and InputTypeView RefCounted.

Source/core/html/forms/InputTypeView.h

Index: Source/core/html/forms/InputTypeView.h
diff --git a/Source/core/html/forms/InputTypeView.h b/Source/core/html/forms/InputTypeView.h
index 32fcb096c9e0c51a79ca9305434fbea3fc5d9fd3..366aed8fd710c579511cb1069a6821552e3651db 100644
--- a/Source/core/html/forms/InputTypeView.h
+++ b/Source/core/html/forms/InputTypeView.h
@@ -65,7 +65,7 @@ public:
 // An InputTypeView object represents the UI-specific part of an
 // HTMLInputElement. Do not expose instances of InputTypeView and classes
 // derived from it to classes other than HTMLInputElement.
-class InputTypeView {
+class InputTypeView : public RefCounted<InputTypeView> {
     WTF_MAKE_NONCOPYABLE(InputTypeView);
     WTF_MAKE_FAST_ALLOCATED;