Oilpan: Remove GC_INFO_{DEFINE,DECLARE} macros

Source/core/css/CSSCalculationValue.cpp

 /*
  * Copyright (C) 2011, 2012 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 29 matching lines @@
 static const int maxExpressionDepth = 100;
 
 enum ParseState {
     OK,
     TooDeep,
     NoMoreTokens
 };
 
 namespace WebCore {
 
-DEFINE_GC_INFO(CSSCalcExpressionNode);
-
 static CalculationCategory unitCategory(CSSPrimitiveValue::UnitTypes type)
 {
     switch (type) {
     case CSSPrimitiveValue::CSS_NUMBER:
     case CSSPrimitiveValue::CSS_PARSER_INTEGER:
         return CalcNumber;
     case CSSPrimitiveValue::CSS_PERCENTAGE:
         return CalcPercent;
     case CSSPrimitiveValue::CSS_EMS:
     case CSSPrimitiveValue::CSS_EXS:
@@ skipping 700 matching lines @@
     return adoptRefCountedWillBeRefCountedGarbageCollected(new CSSCalcValue(expression, range));
 }
 
 void CSSCalcValue::traceAfterDispatch(Visitor* visitor)
 {
     visitor->trace(m_expression);
     CSSValue::traceAfterDispatch(visitor);
 }
 
 } // namespace WebCore