Remove CSSOM mutability in StyleRule.

sky/engine/core/css/StyleRuleKeyframes.cpp

 /*
  * Copyright (C) 2007, 2008, 2012 Apple 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.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 17 matching lines @@
 
 #include "sky/engine/core/css/StyleKeyframe.h"
 
 namespace blink {
 
 StyleRuleKeyframes::StyleRuleKeyframes()
     : StyleRuleBase(Keyframes)
 {
 }
 
-StyleRuleKeyframes::StyleRuleKeyframes(const StyleRuleKeyframes& o)
-    : StyleRuleBase(o)
-    , m_keyframes(o.m_keyframes)
-    , m_name(o.m_name)
-    , m_isPrefixed(o.m_isPrefixed)
-{
-}
-
 StyleRuleKeyframes::~StyleRuleKeyframes()
 {
 }
 
 void StyleRuleKeyframes::parserAppendKeyframe(PassRefPtr<StyleKeyframe> keyframe)
 {
     if (!keyframe)
         return;
     m_keyframes.append(keyframe);
 }
 
-void StyleRuleKeyframes::wrapperAppendKeyframe(PassRefPtr<StyleKeyframe> keyframe)
-{
-    m_keyframes.append(keyframe);
-}
-
-void StyleRuleKeyframes::wrapperRemoveKeyframe(unsigned index)
-{
-    m_keyframes.remove(index);
-}
-
-int StyleRuleKeyframes::findKeyframeIndex(const String& key) const
-{
-    String percentageString;
-    if (equalIgnoringCase(key, "from"))
-        percentageString = "0%";
-    else if (equalIgnoringCase(key, "to"))
-        percentageString = "100%";
-    else
-        percentageString = key;
-
-    for (unsigned i = 0; i < m_keyframes.size(); ++i) {
-        if (m_keyframes[i]->keyText() == percentageString)
-            return i;
-    }
-    return -1;
-}
-
 } // namespace blink