Cascade declared property values instead of applying values on top of each other

Source/core/css/CSSProperties.in

Index: Source/core/css/CSSProperties.in
diff --git a/Source/core/css/CSSProperties.in b/Source/core/css/CSSProperties.in
index 5e80ef908951745239405f97561031eb2c4e66e4..1d1bc014a264ddbfb58059f7f68b70f27eb10629 100644
--- a/Source/core/css/CSSProperties.in
+++ b/Source/core/css/CSSProperties.in
@@ -82,7 +82,6 @@ grid-template-areas custom_all
 height initial=initialSize, converter=convertLengthSizing
 justify-content
 image-rendering
-internal-callback custom_all
 isolation
 justify-items custom_all
 justify-self custom_all
@@ -137,8 +136,7 @@ table-layout
 tab-size type_name=unsigned
 text-align custom_value
 text-align-last type_name=TextAlignLast
-text-decoration custom_value
-text-decoration-line use_handlers_for=CSSPropertyTextDecoration
+text-decoration-line name_for_methods=TextDecoration, custom_value
 text-decoration-color custom_all
 text-decoration-style type_name=TextDecorationStyle
 text-indent custom_all
@@ -159,8 +157,6 @@ width initial=initialSize, converter=convertLengthSizing
 will-change custom_all
 word-break
 word-spacing initial=initialLetterWordSpacing, converter=convertSpacing
-// UAs must treat 'word-wrap' as an alternate name for the 'overflow-wrap' property. So using the same handlers.
-word-wrap name_for_methods=OverflowWrap
 zoom custom_all
 z-index type_name=int, custom_all
 
@@ -176,11 +172,7 @@ z-index type_name=int, custom_all
 -webkit-appearance type_name=ControlPart
 -webkit-aspect-ratio custom_all
 backface-visibility
--webkit-backface-visibility
--webkit-background-clip use_handlers_for=CSSPropertyBackgroundClip
 -webkit-background-composite custom_all
--webkit-background-origin use_handlers_for=CSSPropertyBackgroundOrigin
--webkit-background-size use_handlers_for=CSSPropertyBackgroundSize
 -webkit-border-fit
 -webkit-border-horizontal-spacing name_for_methods=HorizontalBorderSpacing, converter=convertComputedLength<short>
 -webkit-border-image initial=initialNinePieceImage, custom_value
@@ -195,7 +187,6 @@ backface-visibility
 -webkit-box-orient
 -webkit-box-pack
 -webkit-box-reflect converter=convertBoxReflect
--webkit-box-shadow use_handlers_for=CSSPropertyBoxShadow
 -webkit-clip-path custom_value
 -webkit-column-break-after type_name=EPageBreak, initial=initialPageBreak
 -webkit-column-break-before type_name=EPageBreak, initial=initialPageBreak
@@ -240,9 +231,7 @@ column-fill type_name=ColumnFill
 -webkit-mask-repeat-x custom_all
 -webkit-mask-repeat-y custom_all
 -webkit-mask-size custom_all
--webkit-perspective custom_all
 perspective-origin custom_all
--webkit-perspective-origin custom_all
 -webkit-perspective-origin-x converter=convertLength
 -webkit-perspective-origin-y converter=convertLength
 -webkit-print-color-adjust type_name=PrintColorAdjust
@@ -260,13 +249,11 @@ perspective-origin custom_all
 -webkit-text-stroke-width converter=convertTextStrokeWidth
 text-underline-position custom_value
 transform custom_value
--webkit-transform use_handlers_for=CSSPropertyTransform
 transform-origin custom_all
 -webkit-transform-origin-x converter=convertLength
 -webkit-transform-origin-y converter=convertLength
 -webkit-transform-origin-z converter=convertComputedLength<float>
 transform-style name_for_methods=TransformStyle3D
--webkit-transform-style name_for_methods=TransformStyle3D
 -webkit-transition-delay custom_all
 -webkit-transition-duration custom_all
 -webkit-transition-property custom_all
@@ -315,33 +302,6 @@ text-anchor svg
 vector-effect svg
 writing-mode svg, type_name=SVGWritingMode
 
--webkit-border-end-color direction_aware
--webkit-border-end-style direction_aware
--webkit-border-end-width direction_aware
--webkit-border-start-color direction_aware
--webkit-border-start-style direction_aware
--webkit-border-start-width direction_aware
--webkit-border-before-color direction_aware
--webkit-border-before-style direction_aware
--webkit-border-before-width direction_aware
--webkit-border-after-color direction_aware
--webkit-border-after-style direction_aware
--webkit-border-after-width direction_aware
--webkit-margin-end direction_aware
--webkit-margin-start direction_aware
--webkit-margin-before direction_aware
--webkit-margin-after direction_aware
--webkit-padding-end direction_aware
--webkit-padding-start direction_aware
--webkit-padding-before direction_aware
--webkit-padding-after direction_aware
--webkit-logical-width direction_aware
--webkit-logical-height direction_aware
--webkit-min-logical-width direction_aware
--webkit-min-logical-height direction_aware
--webkit-max-logical-width direction_aware
--webkit-max-logical-height direction_aware
-
 // FIXME: We should look over these and see if some should actually be
 // marked as unreachable.
 animation-delay skip