Expose isEmailField() for input element

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 41 matching lines @@
             WebFormControlElement::assign(element);
             return *this;
         }
         void assign(const WebInputElement& element) { WebFormControlElement::assign(element); }
 
         // This returns true for all of textfield-looking types such as text,
         // password, search, email, url, and number.
         BLINK_EXPORT bool isTextField() const;
         // This returns true only for type=text.
         BLINK_EXPORT bool isText() const;
+        BLINK_EXPORT bool isEmailField() const;
         BLINK_EXPORT bool isPasswordField() const;
         BLINK_EXPORT bool isImageButton() const;
         BLINK_EXPORT bool isRadioButton() const;
         BLINK_EXPORT bool isCheckbox() const;
         BLINK_EXPORT int maxLength() const;
         BLINK_EXPORT void setActivatedSubmit(bool);
         BLINK_EXPORT int size() const;
         BLINK_EXPORT void setChecked(bool, bool sendEvents = false);
         // Sets the value inside the text field without being sanitized.
         // Can't be used if a renderer doesn't exist or on a non text field type.
@@ skipping 24 matching lines @@
     BLINK_EXPORT WebInputElement* toWebInputElement(WebElement*);
 
     inline const WebInputElement* toWebInputElement(const WebElement* element)
     {
         return toWebInputElement(const_cast<WebElement*>(element));
     }
 
 } // namespace blink
 
 #endif