PurgeMemory.

third_party/WebKit/Source/core/css/CSSStyleSheet.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2012 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
@@ skipping 426 matching lines @@
         return;
 
     m_loadCompleted = completed;
 
     if (completed)
         m_contents->clientLoadCompleted(this);
     else
         m_contents->clientLoadStarted(this);
 }
 
+void CSSStyleSheet::purgeMemory()
+{
+    if (m_contents)
+        m_contents->purgeMemory();
+}
+
 DEFINE_TRACE(CSSStyleSheet)
 {
     visitor->trace(m_contents);
     visitor->trace(m_mediaQueries);
     visitor->trace(m_ownerNode);
     visitor->trace(m_ownerRule);
     visitor->trace(m_mediaCSSOMWrapper);
     visitor->trace(m_childRuleCSSOMWrappers);
     visitor->trace(m_ruleListCSSOMWrapper);
     StyleSheet::trace(visitor);
 }
 
 } // namespace blink