Remove code to collect rules when matching.

sky/engine/core/frame/LocalDOMWindow.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 580 matching lines @@
 }
 
 PassRefPtr<CSSStyleDeclaration> LocalDOMWindow::getComputedStyle(Element* elt, const String& pseudoElt) const
 {
     if (!elt)
         return nullptr;
 
     return CSSComputedStyleDeclaration::create(elt, false, pseudoElt);
 }
 
-PassRefPtr<CSSRuleList> LocalDOMWindow::getMatchedCSSRules(Element* element, const String& pseudoElement) const
-{
-    if (!element)
-        return nullptr;
-
-    unsigned colonStart = pseudoElement[0] == ':' ? (pseudoElement[1] == ':' ? 2 : 1) : 0;
-    CSSSelector::PseudoType pseudoType = CSSSelector::parsePseudoType(AtomicString(pseudoElement.substring(colonStart)));
-    if (pseudoType == CSSSelector::PseudoUnknown && !pseudoElement.isEmpty())
-        return nullptr;
-
-    unsigned rulesToInclude = StyleResolver::AuthorCSSRules;
-    PseudoId pseudoId = CSSSelector::pseudoId(pseudoType);
-    return m_frame->document()->ensureStyleResolver().pseudoCSSRulesForElement(element, pseudoId, rulesToInclude);
-}
-
 double LocalDOMWindow::devicePixelRatio() const
 {
     if (!m_frame)
         return 0.0;
 
     return m_frame->devicePixelRatio();
 }
 
 void LocalDOMWindow::moveBy(float x, float y) const
 {
@@ skipping 171 matching lines @@
 {
     return static_cast<DOMWindowLifecycleNotifier&>(LifecycleContext<LocalDOMWindow>::lifecycleNotifier());
 }
 
 PassOwnPtr<LifecycleNotifier<LocalDOMWindow> > LocalDOMWindow::createLifecycleNotifier()
 {
     return DOMWindowLifecycleNotifier::create(this);
 }
 
 } // namespace blink