Use toCSSFooValue() instead of using static_cast<CSSFooValue*> in CSSValue.cpp

Clean up static_cast<CSSFooValue*>.

BUG=309516

Review URL: https://codereview.chromium.org/205273003

git-svn-id: svn://svn.chromium.org/blink/trunk@169719 bbb929c8-8fbe-4397-9dbb-9b2b20218538

third_party/WebKit/Source/core/css/CSSValue.cpp

@@ -515,97 +515,97 @@ void CSSValue::trace(Visitor* visitor)
 
     switch (classType()) {
     case AspectRatioClass:
-        static_cast<CSSAspectRatioValue*>(this)->traceAfterDispatch(visitor);
+        toCSSAspectRatioValue(this)->traceAfterDispatch(visitor);
         return;
     case BorderImageSliceClass:
-        static_cast<CSSBorderImageSliceValue*>(this)->traceAfterDispatch(visitor);
+        toCSSBorderImageSliceValue(this)->traceAfterDispatch(visitor);
         return;
     case CanvasClass:
-        static_cast<CSSCanvasValue*>(this)->traceAfterDispatch(visitor);
+        toCSSCanvasValue(this)->traceAfterDispatch(visitor);
         return;
     case CursorImageClass:
-        static_cast<CSSCursorImageValue*>(this)->traceAfterDispatch(visitor);
+        toCSSCursorImageValue(this)->traceAfterDispatch(visitor);
         return;
     case FontClass:
-        static_cast<CSSFontValue*>(this)->traceAfterDispatch(visitor);
+        toCSSFontValue(this)->traceAfterDispatch(visitor);
         return;
     case FontFaceSrcClass:
-        static_cast<CSSFontFaceSrcValue*>(this)->traceAfterDispatch(visitor);
+        toCSSFontFaceSrcValue(this)->traceAfterDispatch(visitor);
         return;
     case FontFeatureClass:
-        static_cast<CSSFontFeatureValue*>(this)->traceAfterDispatch(visitor);
+        toCSSFontFeatureValue(this)->traceAfterDispatch(visitor);
         return;
     case FunctionClass:
-        static_cast<CSSFunctionValue*>(this)->traceAfterDispatch(visitor);
+        toCSSFunctionValue(this)->traceAfterDispatch(visitor);
         return;
     case LinearGradientClass:
-        static_cast<CSSLinearGradientValue*>(this)->traceAfterDispatch(visitor);
+        toCSSLinearGradientValue(this)->traceAfterDispatch(visitor);
         return;
     case RadialGradientClass:
-        static_cast<CSSRadialGradientValue*>(this)->traceAfterDispatch(visitor);
+        toCSSRadialGradientValue(this)->traceAfterDispatch(visitor);
         return;
     case CrossfadeClass:
-        static_cast<CSSCrossfadeValue*>(this)->traceAfterDispatch(visitor);
+        toCSSCrossfadeValue(this)->traceAfterDispatch(visitor);
         return;
     case ImageClass:
-        static_cast<CSSImageValue*>(this)->traceAfterDispatch(visitor);
+        toCSSImageValue(this)->traceAfterDispatch(visitor);
         return;
     case InheritedClass:
-        static_cast<CSSInheritedValue*>(this)->traceAfterDispatch(visitor);
+        toCSSInheritedValue(this)->traceAfterDispatch(visitor);
         return;
     case InitialClass:
-        static_cast<CSSInitialValue*>(this)->traceAfterDispatch(visitor);
+        toCSSInitialValue(this)->traceAfterDispatch(visitor);
         return;
     case GridLineNamesClass:
-        static_cast<CSSGridLineNamesValue*>(this)->traceAfterDispatch(visitor);
+        toCSSGridLineNamesValue(this)->traceAfterDispatch(visitor);
         return;
     case GridTemplateAreasClass:
-        static_cast<CSSGridTemplateAreasValue*>(this)->traceAfterDispatch(visitor);
+        toCSSGridTemplateAreasValue(this)->traceAfterDispatch(visitor);
         return;
     case PrimitiveClass:
-        static_cast<CSSPrimitiveValue*>(this)->traceAfterDispatch(visitor);
+        toCSSPrimitiveValue(this)->traceAfterDispatch(visitor);
         return;
     case ReflectClass:
-        static_cast<CSSReflectValue*>(this)->traceAfterDispatch(visitor);
+        toCSSReflectValue(this)->traceAfterDispatch(visitor);
         return;
     case ShadowClass:
-        static_cast<CSSShadowValue*>(this)->traceAfterDispatch(visitor);
+        toCSSShadowValue(this)->traceAfterDispatch(visitor);
         return;
     case CubicBezierTimingFunctionClass:
-        static_cast<CSSCubicBezierTimingFunctionValue*>(this)->traceAfterDispatch(visitor);
+        toCSSCubicBezierTimingFunctionValue(this)->traceAfterDispatch(visitor);
         return;
     case StepsTimingFunctionClass:
-        static_cast<CSSStepsTimingFunctionValue*>(this)->traceAfterDispatch(visitor);
+        toCSSStepsTimingFunctionValue(this)->traceAfterDispatch(visitor);
         return;
     case UnicodeRangeClass:
-        static_cast<CSSUnicodeRangeValue*>(this)->traceAfterDispatch(visitor);
+        toCSSUnicodeRangeValue(this)->traceAfterDispatch(visitor);
         return;
     case ValueListClass:
-        static_cast<CSSValueList*>(this)->traceAfterDispatch(visitor);
+        toCSSValueList(this)->traceAfterDispatch(visitor);
         return;
     case CSSTransformClass:
-        static_cast<CSSTransformValue*>(this)->traceAfterDispatch(visitor);
+        toCSSTransformValue(this)->traceAfterDispatch(visitor);
         return;
     case LineBoxContainClass:
-        static_cast<CSSLineBoxContainValue*>(this)->traceAfterDispatch(visitor);
+        toCSSLineBoxContainValue(this)->traceAfterDispatch(visitor);
         return;
     case CalculationClass:
-        static_cast<CSSCalcValue*>(this)->traceAfterDispatch(visitor);
+        toCSSCalcValue(this)->traceAfterDispatch(visitor);
         return;
     case ImageSetClass:
-        static_cast<CSSImageSetValue*>(this)->traceAfterDispatch(visitor);
+        toCSSImageSetValue(this)->traceAfterDispatch(visitor);
         return;
     case CSSFilterClass:
-        static_cast<CSSFilterValue*>(this)->traceAfterDispatch(visitor);
+        toCSSFilterValue(this)->traceAfterDispatch(visitor);
         return;
     case CSSArrayFunctionValueClass:
-        static_cast<CSSArrayFunctionValue*>(this)->traceAfterDispatch(visitor);
+        toCSSArrayFunctionValue(this)->traceAfterDispatch(visitor);
         return;
     case SVGPaintClass:
-        static_cast<SVGPaint*>(this)->traceAfterDispatch(visitor);
+        toSVGPaint(this)->traceAfterDispatch(visitor);
         return;
     case CSSSVGDocumentClass:
-        static_cast<CSSSVGDocumentValue*>(this)->traceAfterDispatch(visitor);
+        toCSSSVGDocumentValue(this)->traceAfterDispatch(visitor);
         return;
     }
     ASSERT_NOT_REACHED();