Fix template angle bracket syntax in css

Source/core/css/MediaList.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2004, 2006, 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 144 matching lines @@
             text.appendLiteral(", ");
         else
             first = false;
         text.append(m_queries[i]->cssText());
     }
     return text.toString();
 }
 
 DEFINE_TRACE(MediaQuerySet)
 {
-    // We don't support tracing of vectors of OwnPtrs (ie. OwnPtr<Vector<OwnPtr<MediaQuery> > >).
+    // We don't support tracing of vectors of OwnPtrs (ie. OwnPtr<Vector<OwnPtr<MediaQuery>>>).
     // Since this is a transitional object we are just ifdef'ing it out when oilpan is not enabled.
 #if ENABLE(OILPAN)
     visitor->trace(m_queries);
 #endif
 }
 
 MediaList::MediaList(MediaQuerySet* mediaQueries, CSSStyleSheet* parentSheet)
     : m_mediaQueries(mediaQueries)
     , m_parentStyleSheet(parentSheet)
     , m_parentRule(nullptr)
@@ skipping 14 matching lines @@
     CSSStyleSheet::RuleMutationScope mutationScope(m_parentRule);
 
     m_mediaQueries->set(value);
 
     if (m_parentStyleSheet)
         m_parentStyleSheet->didMutate();
 }
 
 String MediaList::item(unsigned index) const
 {
-    const WillBeHeapVector<OwnPtrWillBeMember<MediaQuery> >& queries = m_mediaQueries->queryVector();
+    const WillBeHeapVector<OwnPtrWillBeMember<MediaQuery>>& queries = m_mediaQueries->queryVector();
     if (index < queries.size())
         return queries[index]->cssText();
     return String();
 }
 
 void MediaList::deleteMedium(const String& medium, ExceptionState& exceptionState)
 {
     CSSStyleSheet::RuleMutationScope mutationScope(m_parentRule);
 
     bool success = m_mediaQueries->remove(medium);
@@ skipping 26 matching lines @@
 }
 
 DEFINE_TRACE(MediaList)
 {
     visitor->trace(m_mediaQueries);
     visitor->trace(m_parentStyleSheet);
     visitor->trace(m_parentRule);
 }
 
 }