Remove lots of @keyframes related code.

sky/engine/core/css/RuleSet.cpp

Index: sky/engine/core/css/RuleSet.cpp
diff --git a/sky/engine/core/css/RuleSet.cpp b/sky/engine/core/css/RuleSet.cpp
index ce4528128d32bd1cb7e82dcb27b9ef6169aa7376..08a2bd3232c62ead840e519a8fb702508320c28f 100644
--- a/sky/engine/core/css/RuleSet.cpp
+++ b/sky/engine/core/css/RuleSet.cpp
@@ -34,7 +34,6 @@
 #include "sky/engine/core/css/CSSSelector.h"
 #include "sky/engine/core/css/CSSSelectorList.h"
 #include "sky/engine/core/css/SelectorChecker.h"
-#include "sky/engine/core/css/StyleRuleKeyframes.h"
 #include "sky/engine/core/css/StyleSheetContents.h"
 #include "sky/engine/platform/TraceEvent.h"
 #include "sky/engine/wtf/TerminatedArrayBuilder.h"
@@ -141,12 +140,6 @@ void RuleSet::addFontFaceRule(StyleRuleFontFace* rule)
     m_fontFaceRules.append(rule);
 }
 
-void RuleSet::addKeyframesRule(StyleRuleKeyframes* rule)
-{
-    ensurePendingRules(); // So that m_keyframesRules.shrinkToFit() gets called.
-    m_keyframesRules.append(rule);
-}
-
 void RuleSet::addChildRules(const Vector<RefPtr<StyleRuleBase> >& rules)
 {
     for (unsigned i = 0; i < rules.size(); ++i) {
@@ -161,7 +154,7 @@ void RuleSet::addChildRules(const Vector<RefPtr<StyleRuleBase> >& rules)
         } else if (rule->isFontFaceRule()) {
             addFontFaceRule(toStyleRuleFontFace(rule));
         } else if (rule->isKeyframesRule()) {
-            addKeyframesRule(toStyleRuleKeyframes(rule));
+            // TODO(esprehn): remove this.
         } else if (rule->isSupportsRule() && toStyleRuleSupports(rule)->conditionIsSupported()) {
             addChildRules(toStyleRuleSupports(rule)->childRules());
         }
@@ -208,7 +201,6 @@ void RuleSet::compactRules()
     compactPendingRules(pendingRules->tagRules, m_tagRules);
     m_universalRules.shrinkToFit();
     m_fontFaceRules.shrinkToFit();
-    m_keyframesRules.shrinkToFit();
 }
 
 #ifndef NDEBUG