Remove more mouse-specific code

sky/engine/core/dom/Element.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Peter Kelly (pmk@post.com)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  *           (C) 2007 David Smith (catfish.man@gmail.com)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
  *           (C) 2007 Eric Seidel (eric@webkit.org)
  *
  * This library is free software; you can redistribute it and/or
@@ skipping 1232 matching lines @@
 bool Element::isFocusable() const
 {
     return inDocument() && supportsFocus() && rendererIsFocusable();
 }
 
 bool Element::isKeyboardFocusable() const
 {
     return isFocusable() && tabIndex() >= 0;
 }
 
-bool Element::isMouseFocusable() const
-{
-    return isFocusable();
-}
-
 void Element::dispatchFocusEvent(Element* oldFocusedElement, FocusType type)
 {
     RefPtr<FocusEvent> event = FocusEvent::create(EventTypeNames::focus, false, false, document().domWindow(), 0, oldFocusedElement);
     EventDispatcher::dispatchEvent(this, FocusEventDispatchMediator::create(event.release()));
 }
 
 void Element::dispatchBlurEvent(Element* newFocusedElement)
 {
     RefPtr<FocusEvent> event = FocusEvent::create(EventTypeNames::blur, false, false, document().domWindow(), 0, newFocusedElement);
     EventDispatcher::dispatchEvent(this, BlurEventDispatchMediator::create(event.release()));
@@ skipping 494 matching lines @@
         return false;
     if (treeScope().scopedStyleResolver().hasSelectorForId(idValue))
         return true;
     // Host rules could also have effects.
     if (ShadowRoot* shadowRoot = this->shadowRoot())
         return shadowRoot->scopedStyleResolver().hasSelectorForId(idValue);
     return false;
 }
 
 } // namespace blink