Use type cast macro for AnimatableLengthPoint|3D instead of manual toFoo()

Source/core/css/BasicShapeFunctions.cpp

 /*
  * Copyright (C) 2012 Adobe Systems Incorporated. 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.
@@ skipping 54 matching lines @@
     return nullptr;
 }
 
 PassRefPtrWillBeRawPtr<CSSValue> valueForBasicShape(const RenderStyle& style, const BasicShape* basicShape)
 {
     CSSValuePool& pool = cssValuePool();
 
     RefPtrWillBeRawPtr<CSSBasicShape> basicShapeValue = nullptr;
     switch (basicShape->type()) {
     case BasicShape::BasicShapeCircleType: {
-        const BasicShapeCircle* circle = static_cast<const BasicShapeCircle*>(basicShape);
+        const BasicShapeCircle* circle = toBasicShapeCircle(basicShape);
         RefPtrWillBeRawPtr<CSSBasicShapeCircle> circleValue = CSSBasicShapeCircle::create();
 
         circleValue->setCenterX(valueForCenterCoordinate(pool, style, circle->centerX(), HORIZONTAL));
         circleValue->setCenterY(valueForCenterCoordinate(pool, style, circle->centerY(), VERTICAL));
         circleValue->setRadius(basicShapeRadiusToCSSValue(pool, style, circle->radius()));
         basicShapeValue = circleValue.release();
         break;
     }
     case BasicShape::BasicShapeEllipseType: {
-        const BasicShapeEllipse* ellipse = static_cast<const BasicShapeEllipse*>(basicShape);
+        const BasicShapeEllipse* ellipse = toBasicShapeEllipse(basicShape);
         RefPtrWillBeRawPtr<CSSBasicShapeEllipse> ellipseValue = CSSBasicShapeEllipse::create();
 
         ellipseValue->setCenterX(valueForCenterCoordinate(pool, style, ellipse->centerX(), HORIZONTAL));
         ellipseValue->setCenterY(valueForCenterCoordinate(pool, style, ellipse->centerY(), VERTICAL));
         ellipseValue->setRadiusX(basicShapeRadiusToCSSValue(pool, style, ellipse->radiusX()));
         ellipseValue->setRadiusY(basicShapeRadiusToCSSValue(pool, style, ellipse->radiusY()));
         basicShapeValue = ellipseValue.release();
         break;
     }
     case BasicShape::BasicShapePolygonType: {
-        const BasicShapePolygon* polygon = static_cast<const BasicShapePolygon*>(basicShape);
+        const BasicShapePolygon* polygon = toBasicShapePolygon(basicShape);
         RefPtrWillBeRawPtr<CSSBasicShapePolygon> polygonValue = CSSBasicShapePolygon::create();
 
         polygonValue->setWindRule(polygon->windRule());
         const Vector<Length>& values = polygon->values();
         for (unsigned i = 0; i < values.size(); i += 2)
             polygonValue->appendPoint(pool.createValue(values.at(i), style), pool.createValue(values.at(i + 1), style));
 
         basicShapeValue = polygonValue.release();
         break;
     }
     case BasicShape::BasicShapeInsetType: {
-        const BasicShapeInset* inset = static_cast<const BasicShapeInset*>(basicShape);
+        const BasicShapeInset* inset = toBasicShapeInset(basicShape);
         RefPtrWillBeRawPtr<CSSBasicShapeInset> insetValue = CSSBasicShapeInset::create();
 
         insetValue->setTop(pool.createValue(inset->top(), style));
         insetValue->setRight(pool.createValue(inset->right(), style));
         insetValue->setBottom(pool.createValue(inset->bottom(), style));
         insetValue->setLeft(pool.createValue(inset->left(), style));
 
         insetValue->setTopLeftRadius(CSSPrimitiveValue::create(inset->topLeftRadius(), style));
         insetValue->setTopRightRadius(CSSPrimitiveValue::create(inset->topRightRadius(), style));
         insetValue->setBottomRightRadius(CSSPrimitiveValue::create(inset->bottomRightRadius(), style));
@@ skipping 152 matching lines @@
 {
     FloatPoint p;
     float offset = floatValueForLength(centerX.length(), boxSize.width());
     p.setX(centerX.direction() == BasicShapeCenterCoordinate::TopLeft ? offset : boxSize.width() - offset);
     offset = floatValueForLength(centerY.length(), boxSize.height());
     p.setY(centerY.direction() == BasicShapeCenterCoordinate::TopLeft ? offset : boxSize.height() - offset);
     return p;
 }
 
 }