Align -webkit-transform-origin behaviour with transform-origin behaviour

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)
 
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 -webkit-tap-highlight-color inherited, converter=convertColor
 -webkit-text-combine inherited, type_name=TextCombine
 -webkit-text-emphasis-color inherited, custom_all
 -webkit-text-emphasis-position inherited, type_name=TextEmphasisPosition
 -webkit-text-emphasis-style inherited, custom_all
 -webkit-text-fill-color inherited, custom_all
 -webkit-text-security inherited
 -webkit-text-stroke-color animatable, inherited, custom_all
 -webkit-text-stroke-width inherited, converter=convertTextStrokeWidth
 -webkit-transform use_handlers_for=CSSPropertyTransform
+-webkit-transform-origin use_handlers_for=CSSPropertyTransformOrigin
 -webkit-transform-origin-x converter=convertLength
 -webkit-transform-origin-y converter=convertLength
 -webkit-transform-origin-z converter=convertComputedLength<float>
 -webkit-transform-style name_for_methods=TransformStyle3D
 -webkit-transition-delay custom_all
 -webkit-transition-duration custom_all
 -webkit-transition-property custom_all
 -webkit-transition-timing-function custom_all
 -webkit-user-drag
 -webkit-user-modify inherited
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 -webkit-border-start longhands=-webkit-border-start-width;-webkit-border-start-style;-webkit-border-start-color
 -webkit-column-rule longhands=-webkit-column-rule-width;-webkit-column-rule-style;-webkit-column-rule-color
 -webkit-columns longhands=-webkit-column-width;-webkit-column-count
 -webkit-margin-collapse longhands=-webkit-margin-before-collapse;-webkit-margin-after-collapse
 -webkit-mask longhands=-webkit-mask-image;-webkit-mask-position-x;-webkit-mask-position-y;-webkit-mask-size;-webkit-mask-repeat-x;-webkit-mask-repeat-y;-webkit-mask-origin;-webkit-mask-clip
 -webkit-mask-box-image longhands=-webkit-mask-box-image-source;-webkit-mask-box-image-slice;-webkit-mask-box-image-width;-webkit-mask-box-image-outset;-webkit-mask-box-image-repeat
 -webkit-mask-position longhands=-webkit-mask-position-x;-webkit-mask-position-y
 -webkit-mask-repeat longhands=-webkit-mask-repeat-x;-webkit-mask-repeat-y
 -webkit-text-emphasis longhands=-webkit-text-emphasis-style;-webkit-text-emphasis-color
 -webkit-text-stroke longhands=-webkit-text-stroke-width;-webkit-text-stroke-color
--webkit-transform-origin longhands=-webkit-transform-origin-x;-webkit-transform-origin-y;-webkit-transform-origin-z
 -webkit-transition longhands=-webkit-transition-property;-webkit-transition-duration;-webkit-transition-timing-function;-webkit-transition-delay
 
 // Aliases; these map to the same CSSPropertyID
 
 -epub-caption-side alias_for=caption-side
 -epub-text-combine alias_for=-webkit-text-combine
 -epub-text-emphasis alias_for=-webkit-text-emphasis
 -epub-text-emphasis-color alias_for=-webkit-text-emphasis-color
 -epub-text-emphasis-style alias_for=-webkit-text-emphasis-style
 -epub-text-orientation alias_for=-webkit-text-orientation
@@ skipping 14 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