Remove a part of type checking predicates of HTMLInputElement.

Source/core/html/HTMLInputElement.h

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
@@ skipping 67 matching lines @@
     StepRange createStepRange(AnyStepHandling) const;
 
     Decimal findClosestTickMarkValue(const Decimal&);
 
     // Implementations of HTMLInputElement::stepUp() and stepDown().
     void stepUp(int, ExceptionState&);
     void stepDown(int, ExceptionState&);
     // stepUp()/stepDown() for user-interaction.
     bool isSteppable() const;
 
+    // Returns true if the type is button, reset, or submit.
     bool isTextButton() const;
-
-    bool isRadioButton() const;
+    // Returns true if the type is email, number, password, search, tel, text,
+    // or url.
     bool isTextField() const;
-    bool isSearchField() const;
-    bool isInputTypeHidden() const;
-    bool isPasswordField() const;
-    bool isCheckbox() const;
-    bool isRangeControl() const;
-
+    // Returns true if the type is email, password, search, tel, text, or url.
     // FIXME: It's highly likely that any call site calling this function should instead
     // be using a different one. Many input elements behave like text fields, and in addition
     // any unknown input type is treated as text. Consider, for example, isTextField or
     // isTextField && !isPasswordField.
     bool isText() const;
 
-    bool isEmailField() const;
-    bool isFileUpload() const;
-    bool isImageButton() const;
-    bool isNumberField() const;
-    bool isTelephoneField() const;
-    bool isURLField() const;
-    bool isDateField() const;
-    bool isDateTimeLocalField() const;
-    bool isMonthField() const;
-    bool isTimeField() const;
-    bool isWeekField() const;
-
     bool checked() const { return m_isChecked; }
     void setChecked(bool, TextFieldEventBehavior = DispatchNoEvent);
 
     // 'indeterminate' is a state independent of the checked state that causes the control to draw in a way that hides the actual state.
     bool indeterminate() const { return m_isIndeterminate; }
     void setIndeterminate(bool);
     // shouldAppearChecked is used by the rendering tree/CSS while checked() is used by JS to determine checked state
     bool shouldAppearChecked() const;
     virtual bool shouldAppearIndeterminate() const OVERRIDE;
 
@@ skipping 269 matching lines @@
     // The ImageLoader must be owned by this element because the loader code assumes
     // that it lives as long as its owning element lives. If we move the loader into
     // the ImageInput object we may delete the loader while this element lives on.
     OwnPtrWillBeMember<HTMLImageLoader> m_imageLoader;
     OwnPtrWillBeMember<ListAttributeTargetObserver> m_listAttributeTargetObserver;
 };
 
 } // namespace blink
 
 #endif // HTMLInputElement_h