Fix template angle bracket syntax in css

Source/core/css/CSSStyleSheet.h

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010, 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 124 matching lines @@
     bool m_isDisabled;
     String m_title;
     RefPtrWillBeMember<MediaQuerySet> m_mediaQueries;
 
     RawPtrWillBeMember<Node> m_ownerNode;
     RawPtrWillBeMember<CSSRule> m_ownerRule;
 
     TextPosition m_startPosition;
     bool m_loadCompleted;
     mutable RefPtrWillBeMember<MediaList> m_mediaCSSOMWrapper;
-    mutable WillBeHeapVector<RefPtrWillBeMember<CSSRule> > m_childRuleCSSOMWrappers;
+    mutable WillBeHeapVector<RefPtrWillBeMember<CSSRule>> m_childRuleCSSOMWrappers;
     mutable OwnPtrWillBeMember<CSSRuleList> m_ruleListCSSOMWrapper;
 };
 
 inline CSSStyleSheet::RuleMutationScope::RuleMutationScope(CSSStyleSheet* sheet)
     : m_styleSheet(sheet)
 {
     if (m_styleSheet)
         m_styleSheet->willMutateRules();
 }
 
 inline CSSStyleSheet::RuleMutationScope::RuleMutationScope(CSSRule* rule)
     : m_styleSheet(rule ? rule->parentStyleSheet() : 0)
 {
     if (m_styleSheet)
         m_styleSheet->willMutateRules();
 }
 
 inline CSSStyleSheet::RuleMutationScope::~RuleMutationScope()
 {
     if (m_styleSheet)
         m_styleSheet->didMutateRules();
 }
 
 DEFINE_TYPE_CASTS(CSSStyleSheet, StyleSheet, sheet, sheet->isCSSStyleSheet(), sheet.isCSSStyleSheet());
 
 } // namespace blink
 
 #endif