Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

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 174 matching lines @@
 public:
 
     static PassRefPtrWillBeRawPtr<CSSCalcPrimitiveValue> create(PassRefPtrWillBeRawPtr<CSSPrimitiveValue> value, bool isInteger)
     {
         return adoptRefWillBeNoop(new CSSCalcPrimitiveValue(value, isInteger));
     }
 
     static PassRefPtrWillBeRawPtr<CSSCalcPrimitiveValue> create(double value, CSSPrimitiveValue::UnitTypes type, bool isInteger)
     {
         if (std::isnan(value) || std::isinf(value))
-            return 0;
+            return nullptr;
         return adoptRefWillBeNoop(new CSSCalcPrimitiveValue(CSSPrimitiveValue::create(value, type).get(), isInteger));
     }
 
     virtual bool isZero() const OVERRIDE
     {
         return !m_value->getDoubleValue();
     }
 
     virtual String customCSSText() const OVERRIDE
     {
@@ skipping 120 matching lines @@
 }
 
 class CSSCalcBinaryOperation FINAL : public CSSCalcExpressionNode {
 public:
     static PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> create(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> rightSide, CalcOperator op)
     {
         ASSERT(leftSide->category() != CalcOther && rightSide->category() != CalcOther);
 
         CalculationCategory newCategory = determineCategory(*leftSide, *rightSide, op);
         if (newCategory == CalcOther)
-            return 0;
+            return nullptr;
 
         return adoptRefWillBeNoop(new CSSCalcBinaryOperation(leftSide, rightSide, op, newCategory));
     }
 
     static PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> createSimplified(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> leftSide, PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> rightSide, CalcOperator op)
     {
         CalculationCategory leftCategory = leftSide->category();
         CalculationCategory rightCategory = rightSide->category();
         ASSERT(leftCategory != CalcOther && rightCategory != CalcOther);
 
@@ skipping 24 matching lines @@
                     }
                 }
             }
         } else {
             // Simplify multiplying or dividing by a number for simplifiable types.
             ASSERT(op == CalcMultiply || op == CalcDivide);
             CSSCalcExpressionNode* numberSide = getNumberSide(leftSide.get(), rightSide.get());
             if (!numberSide)
                 return create(leftSide, rightSide, op);
             if (numberSide == leftSide && op == CalcDivide)
-                return 0;
+                return nullptr;
             CSSCalcExpressionNode* otherSide = leftSide == numberSide ? rightSide.get() : leftSide.get();
 
             double number = numberSide->doubleValue();
             if (std::isnan(number) || std::isinf(number))
-                return 0;
+                return nullptr;
             if (op == CalcDivide && !number)
-                return 0;
+                return nullptr;
 
             CSSPrimitiveValue::UnitTypes otherType = otherSide->primitiveType();
             if (hasDoubleValue(otherType))
                 return CSSCalcPrimitiveValue::create(evaluateOperator(otherSide->doubleValue(), number, op), otherType, isInteger);
         }
 
         return create(leftSide, rightSide, op);
     }
 
     virtual bool isZero() const OVERRIDE
@@ skipping 149 matching lines @@
 class CSSCalcExpressionNodeParser {
     DISALLOW_ALLOCATION(); // Is only ever stack allocated.
 public:
     PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> parseCalc(CSSParserValueList* tokens)
     {
         unsigned index = 0;
         Value result;
         bool ok = parseValueExpression(tokens, 0, &index, &result);
         ASSERT_WITH_SECURITY_IMPLICATION(index <= tokens->size());
         if (!ok || index != tokens->size())
-            return 0;
+            return nullptr;
         return result.value;
     }
 
 private:
     struct Value {
         DISALLOW_ALLOCATION(); // Is only ever stack allocated.
     public:
         RefPtrWillBeRawPtr<CSSCalcExpressionNode> value;
     };
 
@@ skipping 137 matching lines @@
                 createExpressionNode(CSSPrimitiveValue::create(1 - progress, CSSPrimitiveValue::CSS_NUMBER), isInteger),
                 CalcMultiply),
             createExpressionNode(
                 createExpressionNode(blendNode->to(), zoom),
                 createExpressionNode(CSSPrimitiveValue::create(progress, CSSPrimitiveValue::CSS_NUMBER), isInteger),
                 CalcMultiply),
             CalcAdd);
     }
     case CalcExpressionNodeUndefined:
         ASSERT_NOT_REACHED();
-        return 0;
+        return nullptr;
     }
     ASSERT_NOT_REACHED();
-    return 0;
+    return nullptr;
 }
 
 PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> CSSCalcValue::createExpressionNode(const Length& length, float zoom)
 {
     switch (length.type()) {
     case Percent:
     case Fixed:
         return createExpressionNode(CSSPrimitiveValue::create(length, zoom), length.value() == trunc(length.value()));
     case Calculated:
         return createExpressionNode(length.calculationValue()->expression(), zoom);
     case Auto:
     case Intrinsic:
     case MinIntrinsic:
     case MinContent:
     case MaxContent:
     case FillAvailable:
     case FitContent:
     case ExtendToZoom:
     case DeviceWidth:
     case DeviceHeight:
     case Undefined:
         ASSERT_NOT_REACHED();
-        return 0;
+        return nullptr;
     }
     ASSERT_NOT_REACHED();
-    return 0;
+    return nullptr;
 }
 
 PassRefPtrWillBeRawPtr<CSSCalcValue> CSSCalcValue::create(CSSParserString name, CSSParserValueList* parserValueList, ValueRange range)
 {
     CSSCalcExpressionNodeParser parser;
     RefPtrWillBeRawPtr<CSSCalcExpressionNode> expression;
 
     if (equalIgnoringCase(name, "calc(") || equalIgnoringCase(name, "-webkit-calc("))
         expression = parser.parseCalc(parserValueList);
     // FIXME calc (http://webkit.org/b/16662) Add parsing for min and max here
 
-    return expression ? adoptRefCountedWillBeRefCountedGarbageCollected(new CSSCalcValue(expression, range)) : 0;
+    return expression ? adoptRefCountedWillBeRefCountedGarbageCollected(new CSSCalcValue(expression, range)) : nullptr;
 }
 
 PassRefPtrWillBeRawPtr<CSSCalcValue> CSSCalcValue::create(PassRefPtrWillBeRawPtr<CSSCalcExpressionNode> expression, ValueRange range)
 {
     return adoptRefCountedWillBeRefCountedGarbageCollected(new CSSCalcValue(expression, range));
 }
 
 void CSSCalcValue::traceAfterDispatch(Visitor* visitor)
 {
     visitor->trace(m_expression);
     CSSValue::traceAfterDispatch(visitor);
 }
 
 } // namespace WebCore