PurgeMemory.

third_party/WebKit/Source/core/css/CSSKeyframesRule.h

 /*
  * 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 46 matching lines @@
 
     int findKeyframeIndex(const String& key) const;
 
     PassRefPtrWillBeRawPtr<StyleRuleKeyframes> copy() const { return adoptRefWillBeNoop(new StyleRuleKeyframes(*this)); }
 
     DECLARE_TRACE_AFTER_DISPATCH();
 
     void styleChanged() { m_version++; }
     unsigned version() const { return m_version; }
 
+    void purgeMemory();
+
 private:
     StyleRuleKeyframes();
     explicit StyleRuleKeyframes(const StyleRuleKeyframes&);
 
     WillBeHeapVector<RefPtrWillBeMember<StyleRuleKeyframe>> m_keyframes;
     AtomicString m_name;
     unsigned m_version : 31;
     unsigned m_isPrefixed : 1;
 };
 
@@ skipping 44 matching lines @@
     mutable WillBeHeapVector<RefPtrWillBeMember<CSSKeyframeRule>> m_childRuleCSSOMWrappers;
     mutable OwnPtrWillBeMember<CSSRuleList> m_ruleListCSSOMWrapper;
     bool m_isPrefixed;
 };
 
 DEFINE_CSS_RULE_TYPE_CASTS(CSSKeyframesRule, KEYFRAMES_RULE);
 
 } // namespace blink
 
 #endif // CSSKeyframesRule_h