Split out String, URI and CustomIdent from CSSPrimitiveValue

Source/core/css/CSSPrimitiveValue.h

Index: Source/core/css/CSSPrimitiveValue.h
diff --git a/Source/core/css/CSSPrimitiveValue.h b/Source/core/css/CSSPrimitiveValue.h
index 0e5ac77d90ffb9f53bbec0f09f768fa05b3b64f6..82ec5bb81fe49ae2156f6c33dfd6e4a7fec8c3e6 100644
--- a/Source/core/css/CSSPrimitiveValue.h
+++ b/Source/core/css/CSSPrimitiveValue.h
@@ -87,8 +87,6 @@ public:
         Seconds,
         Hertz,
         Kilohertz,
-        CustomIdentifier,
-        URI,
         RGBColor,
         ViewportWidth,
         ViewportHeight,
@@ -105,7 +103,6 @@ public:
         Calc,
         CalcPercentageWithNumber,
         CalcPercentageWithLength,
-        String,
         PropertyID,
         ValueID,
         QuirkyEms,
@@ -157,7 +154,6 @@ public:
             || type() == UnitType::Gradians
             || type() == UnitType::Turns;
     }
-    bool isCustomIdent() const { return type() == UnitType::CustomIdentifier; }
     bool isFontRelativeLength() const
     {
         return type() == UnitType::Ems
@@ -178,9 +174,7 @@ public:
     bool isPx() const { return typeWithCalcResolved() == UnitType::Pixels; }
     bool isRGBColor() const { return type() == UnitType::RGBColor; }
     bool isShape() const { return type() == UnitType::Shape; }
-    bool isString() const { return type() == UnitType::String; }
     bool isTime() const { return type() == UnitType::Seconds || type() == UnitType::Milliseconds; }
-    bool isURI() const { return type() == UnitType::URI; }
     bool isCalculated() const { return type() == UnitType::Calc; }
     bool isCalculatedPercentageWithNumber() const { return typeWithCalcResolved() == UnitType::CalcPercentageWithNumber; }
     bool isCalculatedPercentageWithLength() const { return typeWithCalcResolved() == UnitType::CalcPercentageWithLength; }
@@ -208,10 +202,6 @@ public:
     {
         return adoptRefWillBeNoop(new CSSPrimitiveValue(value, type));
     }
-    static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> create(const String& value, UnitType type)
-    {
-        return adoptRefWillBeNoop(new CSSPrimitiveValue(value, type));
-    }
     static PassRefPtrWillBeRawPtr<CSSPrimitiveValue> create(const Length& value, float zoom)
     {
         return adoptRefWillBeNoop(new CSSPrimitiveValue(value, zoom));
@@ -252,7 +242,6 @@ public:
     int getIntValue() const { return getValue<int>(); }
     template<typename T> inline T getValue() const { return clampTo<T>(getDoubleValue()); }
 
-    String getStringValue() const;
     RGBA32 getRGBA32Value() const { ASSERT(isRGBColor()); return m_value.rgbcolor; }
 
     CSSBasicShape* getShapeValue() const { ASSERT(isShape()); return m_value.shape; }
@@ -284,7 +273,6 @@ private:
     CSSPrimitiveValue(CSSPropertyID);
     CSSPrimitiveValue(RGBA32 color);
     CSSPrimitiveValue(const Length&, float zoom);
-    CSSPrimitiveValue(const String&, UnitType);
     CSSPrimitiveValue(double, UnitType);
 
     template<typename T> CSSPrimitiveValue(T); // Defined in CSSPrimitiveValueMappings.h
@@ -317,7 +305,6 @@ private:
         CSSPropertyID propertyID;
         CSSValueID valueID;
         double num;
-        StringImpl* string;
         RGBA32 rgbcolor;
         // FIXME: oilpan: Should be members, but no support for members in unions. Just trace the raw ptr for now.
         CSSBasicShape* shape;