Revert of Revert of Split out CSSParser public API

Source/core/css/CSSPageRule.cpp

 /*
  * (C) 1999-2003 Lars Knoll (knoll@kde.org)
  * (C) 2002-2003 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2002, 2005, 2006, 2008, 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,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public License
  * along with this library; see the file COPYING.LIB.  If not, write to
  * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */
 
 #include "config.h"
 #include "core/css/CSSPageRule.h"
 
-#include "core/css/parser/BisonCSSParser.h"
 #include "core/css/CSSSelector.h"
 #include "core/css/CSSStyleSheet.h"
 #include "core/css/PropertySetCSSStyleDeclaration.h"
 #include "core/css/StylePropertySet.h"
 #include "core/css/StyleRule.h"
+#include "core/css/parser/CSSParser.h"
 #include "wtf/text/StringBuilder.h"
 
 namespace blink {
 
 CSSPageRule::CSSPageRule(StyleRulePage* pageRule, CSSStyleSheet* parent)
     : CSSRule(parent)
     , m_pageRule(pageRule)
 {
 }
 
@@ skipping 23 matching lines @@
             text.append(' ');
             text.append(pageSpecification);
         }
     }
     return text.toString();
 }
 
 void CSSPageRule::setSelectorText(const String& selectorText)
 {
     CSSParserContext context(parserContext(), 0);
-    BisonCSSParser parser(context);
+    CSSParser parser(context);
     CSSSelectorList selectorList;
     parser.parseSelector(selectorText, selectorList);
     if (!selectorList.isValid())
         return;
 
     CSSStyleSheet::RuleMutationScope mutationScope(this);
 
     m_pageRule->wrapperAdoptSelectorList(selectorList);
 }
 
@@ skipping 19 matching lines @@
 }
 
 void CSSPageRule::trace(Visitor* visitor)
 {
     visitor->trace(m_pageRule);
     visitor->trace(m_propertiesCSSOMWrapper);
     CSSRule::trace(visitor);
 }
 
 } // namespace blink