blink: Cleanup class/struct forward declarations

third_party/WebKit/public/web/WebInputElement.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 18 matching lines @@
  */
 
 #ifndef WebInputElement_h
 #define WebInputElement_h
 
 #include "WebFormControlElement.h"
 
 namespace blink {
 
 class HTMLInputElement;
-class WebElementCollection;
 class WebOptionElement;
 
 // Provides readonly access to some properties of a DOM input element node.
 class WebInputElement final : public WebFormControlElement {
  public:
   WebInputElement() : WebFormControlElement() {}
   WebInputElement(const WebInputElement& element)
       : WebFormControlElement(element) {}
 
   WebInputElement& operator=(const WebInputElement& element) {
@@ skipping 53 matching lines @@
 // This returns 0 if the specified WebElement is not a WebInputElement.
 BLINK_EXPORT WebInputElement* toWebInputElement(WebElement*);
 // This returns 0 if the specified WebElement is not a WebInputElement.
 inline const WebInputElement* toWebInputElement(const WebElement* element) {
   return toWebInputElement(const_cast<WebElement*>(element));
 }
 
 }  // namespace blink
 
 #endif