Remove lots of @keyframes related code.

sky/engine/core/css/resolver/ScopedStyleResolver.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  * Copyright (C) 2012 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:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 98 matching lines @@
 
     for (Node* node : m_styleSheetCandidateNodes) {
         ASSERT(isHTMLStyleElement(*node));
         CSSStyleSheet* sheet = toHTMLStyleElement(node)->sheet();
         if (sheet && (!sheet->mediaQueries() || medium.eval(sheet->mediaQueries()))) {
             sheets.append(sheet);
         }
     }
 }
 
-const StyleRuleKeyframes* ScopedStyleResolver::keyframeStylesForAnimation(String animationName)
-{
-    for (auto& sheet : m_authorStyleSheets) {
-        // TODO(esprehn): Maybe just store the keyframes in a map?
-        for (auto& rule : sheet->contents()->ensureRuleSet().keyframesRules()) {
-            if (rule->name() == animationName)
-                return rule.get();
-        }
-    }
-    return nullptr;
-}
-
 void ScopedStyleResolver::collectMatchingAuthorRules(ElementRuleCollector& collector, CascadeOrder cascadeOrder)
 {
     for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) {
         MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ensureRuleSet(), m_authorStyleSheets[i].get(), i);
         collector.collectMatchingRules(matchRequest, cascadeOrder);
     }
 }
 
 void ScopedStyleResolver::collectMatchingHostRules(ElementRuleCollector& collector, CascadeOrder cascadeOrder)
 {
     for (size_t i = 0; i < m_authorStyleSheets.size(); ++i) {
         MatchRequest matchRequest(&m_authorStyleSheets[i]->contents()->ensureRuleSet(), m_authorStyleSheets[i].get(), i);
         collector.collectMatchingHostRules(matchRequest, cascadeOrder);
     }
 }
 
 } // namespace blink