Implement MouseEvent.getModifierState

Source/core/events/KeyboardEvent.cpp

 /**
  * Copyright (C) 2001 Peter Kelly (pmk@post.com)
  * Copyright (C) 2001 Tobias Anton (anton@stud.fbi.fh-darmstadt.de)
  * Copyright (C) 2006 Samuel Weinig (sam.weinig@gmail.com)
  * Copyright (C) 2003, 2005, 2006, 2007 Apple Inc. 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
  * version 2 of the License, or (at your option) any later version.
@@ skipping 136 matching lines @@
     initUIEvent(type, canBubble, cancelable, view, 0);
 
     m_keyIdentifier = keyIdentifier;
     m_location = location;
     m_ctrlKey = ctrlKey;
     m_shiftKey = shiftKey;
     m_altKey = altKey;
     m_metaKey = metaKey;
 }
 
-bool KeyboardEvent::getModifierState(const String& keyIdentifier) const
-{
-    // FIXME: The following keyIdentifiers are not supported yet (crbug.com/265458):
-    // "AltGraph", "CapsLock", "Fn", "NumLock", "ScrollLock", "SymbolLock", "OS".
-    if (keyIdentifier == "Control")
-        return ctrlKey();
-    if (keyIdentifier == "Shift")
-        return shiftKey();
-    if (keyIdentifier == "Alt")
-        return altKey();
-    if (keyIdentifier == "Meta")
-        return metaKey();
-    return false;
-}
-
 int KeyboardEvent::keyCode() const
 {
     // IE: virtual key code for keyup/keydown, character code for keypress
     // Firefox: virtual key code for keyup/keydown, zero for keypress
     // We match IE.
     if (!m_keyEvent)
         return 0;
 
 #if OS(ANDROID)
     // FIXME: Check to see if this applies to other OS.
@@ skipping 57 matching lines @@
 {
 }
 
 bool KeyboardEventDispatchMediator::dispatchEvent(EventDispatcher& dispatcher) const
 {
     // Make sure not to return true if we already took default action while handling the event.
     return EventDispatchMediator::dispatchEvent(dispatcher) && !event().defaultHandled();
 }
 
 } // namespace blink