Implement support for unprefixed keyframes rules resolution.

Source/core/css/CSSKeyframesRule.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 25 matching lines @@
 
 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)
@@ skipping 25 matching lines @@
         if (m_keyframes[i]->keyText() == percentageString)
             return i;
     }
     return -1;
 }
 
 CSSKeyframesRule::CSSKeyframesRule(StyleRuleKeyframes* keyframesRule, CSSStyleSheet* parent)
     : CSSRule(parent)
     , m_keyframesRule(keyframesRule)
     , m_childRuleCSSOMWrappers(keyframesRule->keyframes().size())
+    , m_isPrefixed(keyframesRule->isVendorPrefixed())
 {
 }
 
 CSSKeyframesRule::~CSSKeyframesRule()
 {
     ASSERT(m_childRuleCSSOMWrappers.size() == m_keyframesRule->keyframes().size());
 
     for (unsigned i = 0; i < m_childRuleCSSOMWrappers.size(); ++i) {
         if (m_childRuleCSSOMWrappers[i])
             m_childRuleCSSOMWrappers[i]->setParentRule(0);
@@ skipping 43 matching lines @@
 
 CSSKeyframeRule* CSSKeyframesRule::findRule(const String& s)
 {
     int i = m_keyframesRule->findKeyframeIndex(s);
     return (i >= 0) ? item(i) : 0;
 }
 
 String CSSKeyframesRule::cssText() const
 {
     StringBuilder result;
-    result.append("@-webkit-keyframes ");
+    if (isVendorPrefixed())
+        result.append("@-webkit-keyframes ");
+    else
+        result.append("@keyframes ");
     result.append(name());
     result.append(" { \n");
 
     unsigned size = length();
     for (unsigned i = 0; i < size; ++i) {
         result.append("  ");
         result.append(m_keyframesRule->keyframes()[i]->cssText());
         result.append("\n");
     }
     result.append("}");
@@ skipping 26 matching lines @@
 }
 
 void CSSKeyframesRule::reattach(StyleRuleBase* rule)
 {
     ASSERT(rule);
     ASSERT_WITH_SECURITY_IMPLICATION(rule->isKeyframesRule());
     m_keyframesRule = static_cast<StyleRuleKeyframes*>(rule);
 }
 
 } // namespace WebCore