Add support for setting password value gated on user's gesture in a page

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 119 matching lines @@
 
     int size() const;
     bool sizeShouldIncludeDecoration(int& preferredSize) const;
 
     void setType(const AtomicString&);
 
     virtual String value() const OVERRIDE;
     void setValue(const String&, ExceptionState&, TextFieldEventBehavior = DispatchNoEvent);
     void setValue(const String&, TextFieldEventBehavior = DispatchNoEvent);
     void setValueForUser(const String&);
+    void setValueAfterUserGesture(const String&);
     // Checks if the specified string would be a valid value.
     // We should not call this for types with no string value such as CHECKBOX and RADIO.
     bool isValidValue(const String&) const;
     bool hasDirtyValue() const { return !m_valueIfDirty.isNull(); };
 
     String sanitizeValue(const String&) const;
 
     String localizeValue(const String&) const;
 
     const String& suggestedValue() const;
@@ skipping 222 matching lines @@
     RadioButtonGroupScope* radioButtonGroupScope() const;
     void addToRadioButtonGroup();
     void removeFromRadioButtonGroup();
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
     virtual PassRefPtr<RenderStyle> customStyleForRenderer() OVERRIDE;
 #endif
 
     AtomicString m_name;
     String m_valueIfDirty;
     String m_suggestedValue;
+    String m_valueGatedOnUserGesture;
     int m_size;
     int m_maxLength;
     short m_maxResults;
     bool m_isChecked : 1;
     bool m_reflectsCheckedAttribute : 1;
     bool m_isIndeterminate : 1;
     bool m_isActivatedSubmit : 1;
     unsigned m_autocomplete : 2; // AutoCompleteSetting
     bool m_hasNonEmptyList : 1;
     bool m_stateRestored : 1;
     bool m_parsingInProgress : 1;
     bool m_valueAttributeWasUpdatedAfterParsing : 1;
     bool m_canReceiveDroppedFiles : 1;
     bool m_hasTouchEventHandler : 1;
     bool m_shouldRevealPassword : 1;
     bool m_needsToUpdateViewValue : 1;
     RefPtr<InputType> m_inputType;
     RefPtr<InputTypeView> m_inputTypeView;
     // 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.
     OwnPtr<HTMLImageLoader> m_imageLoader;
     OwnPtr<ListAttributeTargetObserver> m_listAttributeTargetObserver;
 };
 
 } //namespace
 #endif