[svg2] Make 'cx', 'cy' and 'r' presentation attributes

Source/core/css/CSSProperties.in

 // This file specifies all the CSS properties we support and the necessary
 // information for our code generation. The various supported arguments
 // are described below with example usage
 
 
 // - alias_for=other-property
 // Properties specifying alias_for do not get their own enum and instead map
 // directly onto the CSSPropertyID they alias. Currently this means that the
 // UseCounter will not pick up on these (crbug.com/304855)
 
@@ skipping 137 matching lines @@
 clip-path svg, name_for_methods=ClipperResource, converter=convertFragmentIdentifier
 clip-rule inherited, svg, type_name=WindRule
 color-interpolation inherited, svg
 color-interpolation-filters inherited, svg, type_name=EColorInterpolation
 color-rendering inherited, svg
 column-fill runtime_flag=RegionBasedColumns, type_name=ColumnFill
 content custom_all
 counter-increment custom_all
 counter-reset custom_all
 cursor inherited, custom_all
+cx animatable, svg, converter=convertLength
+cy animatable, svg, converter=convertLength
 display
 dominant-baseline svg
 empty-cells inherited, type_name=EEmptyCell
 fill animatable, inherited, svg, setter=setFillPaint, custom_all
 fill-opacity animatable, inherited, svg, converter=convertNumberOrPercentage
 fill-rule inherited, svg, type_name=WindRule
 filter svg, name_for_methods=FilterResource, converter=convertFragmentIdentifier
 flex-basis animatable, converter=convertLengthOrAuto
 flex-direction
 flex-grow animatable, type_name=float
@@ skipping 65 matching lines @@
 page-break-before type_name=EPageBreak, initial=initialPageBreak
 page-break-inside type_name=EPageBreak, initial=initialPageBreak
 paint-order inherited, svg, converter=convertPaintOrder
 perspective animatable, converter=convertPerspective
 perspective-origin animatable, converter=convertPerspectiveOrigin
 pointer-events inherited
 position
 quotes inherited, converter=convertQuotes
 resize custom_value
 right animatable, initial=initialOffset, converter=convertLengthOrAuto
+r animatable, svg, converter=convertLength
 rx animatable, svg, converter=convertLength
 ry animatable, svg, converter=convertLength
 scroll-behavior runtime_flag=CSSOMSmoothScroll, type_name=ScrollBehavior
 scroll-blocks-on runtime_flag=CSSScrollBlocksOn, converter=convertFlags<WebScrollBlocksOn>
 shape-image-threshold animatable, type_name=float
 shape-margin animatable, converter=convertLength
 shape-outside animatable, converter=convertShapeValue
 shape-rendering inherited, svg
 size custom_all
 speak inherited
@@ skipping 271 matching lines @@
 -webkit-flex-flow alias_for=flex-flow
 -webkit-flex-grow alias_for=flex-grow
 -webkit-flex-shrink alias_for=flex-shrink
 -webkit-flex-wrap alias_for=flex-wrap
 -webkit-justify-content alias_for=justify-content
 -webkit-opacity alias_for=opacity
 -webkit-order alias_for=order
 -webkit-shape-image-threshold alias_for=shape-image-threshold
 -webkit-shape-margin alias_for=shape-margin
 -webkit-shape-outside alias_for=shape-outside