Revert of Revert of Split out CSSParser public API

Source/core/css/DOMWindowCSS.cpp

 /*
  * Copyright (C) 2012 Motorola Mobility 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
@@ skipping 14 matching lines @@
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
 #include "core/css/DOMWindowCSS.h"
 
 #include "core/css/CSSPropertyMetadata.h"
 #include "core/css/StylePropertySet.h"
-#include "core/css/parser/BisonCSSParser.h"
+#include "core/css/parser/CSSParser.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 PassRefPtrWillBeRawPtr<DOMWindowCSS> DOMWindowCSS::create()
 {
     return adoptRefWillBeNoop(new DOMWindowCSS());
 }
 
 static String valueWithoutImportant(const String& value)
@@ skipping 10 matching lines @@
     return newValue;
 }
 
 bool DOMWindowCSS::supports(const String& property, const String& value) const
 {
     CSSPropertyID propertyID = cssPropertyID(property.stripWhiteSpace());
     if (propertyID == CSSPropertyInvalid)
         return false;
     ASSERT(CSSPropertyMetadata::isEnabledProperty(propertyID));
 
-    // BisonCSSParser::parseValue() won't work correctly if !important is present,
+    // CSSParser::parseValue() won't work correctly if !important is present,
     // so just get rid of it. It doesn't matter to supports() if it's actually
     // there or not, provided how it's specified in the value is correct.
     String normalizedValue = value.stripWhiteSpace().simplifyWhiteSpace();
     normalizedValue = valueWithoutImportant(normalizedValue);
 
     if (normalizedValue.isEmpty())
         return false;
 
     RefPtrWillBeRawPtr<MutableStylePropertySet> dummyStyle = MutableStylePropertySet::create();
-    return BisonCSSParser::parseValue(dummyStyle.get(), propertyID, normalizedValue, false, HTMLStandardMode, 0);
+    return CSSParser::parseValue(dummyStyle.get(), propertyID, normalizedValue, false, HTMLStandardMode, 0);
 }
 
 bool DOMWindowCSS::supports(const String& conditionText) const
 {
-    CSSParserContext context(HTMLStandardMode, 0);
-    BisonCSSParser parser(context);
-    return parser.parseSupportsCondition(conditionText);
+    return CSSParser::parseSupportsCondition(conditionText);
 }
 
 }