Expose isEmailField() for input element

Source/web/WebInputElement.cpp

 /*
  * 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 39 matching lines @@
 bool WebInputElement::isTextField() const
 {
     return constUnwrap<HTMLInputElement>()->isTextField();
 }
 
 bool WebInputElement::isText() const
 {
     return constUnwrap<HTMLInputElement>()->isText();
 }
 
+bool WebInputElement::isEmailField() const
+{
+    return constUnwrap<HTMLInputElement>()->isEmailField();
+}
+
 bool WebInputElement::isPasswordField() const
 {
     return constUnwrap<HTMLInputElement>()->isPasswordField();
 }
 
 bool WebInputElement::isImageButton() const
 {
     return constUnwrap<HTMLInputElement>()->isImageButton();
 }
 
@@ skipping 86 matching lines @@
 }
 
 WebInputElement* toWebInputElement(WebElement* webElement)
 {
     if (!isHTMLInputElement(*webElement->unwrap<Element>()))
         return 0;
 
     return static_cast<WebInputElement*>(webElement);
 }
 } // namespace blink