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

Source/core/css/CSSPropertyNames.in

 //
 // CSS property names
 //
 // Some properties are used internally, but are not part of CSS. They are used to get
 // HTML4 compatibility in the rendering engine.
 //
 // Microsoft extensions are documented here:
 // http://msdn.microsoft.com/workshop/author/css/reference/attributes.asp
 //
 
+// super-high-priority properties impact the non-standard direction aware properties
+direction
+-webkit-writing-mode
+
 // high-priority properties (those on which other properties can depend) must
 // be listed first
 color
-direction
 font
 font-family
 font-kerning
 font-size
 font-stretch
 font-style
 font-variant
 font-variant-ligatures
 font-weight
 text-rendering
 -webkit-font-feature-settings
 -webkit-font-smoothing
 -webkit-locale
 -webkit-text-orientation
 -epub-text-orientation alias_for=-webkit-text-orientation
--webkit-writing-mode
 -epub-writing-mode alias_for=-webkit-writing-mode
 zoom
 
-// line height needs to be right after the above high-priority properties
-line-height
-
 // The remaining properties are listed in some order
 background
+
+// These set the same RenderStyle values as other non-prefixed properties,
+// we should use those if they are specified.
+-webkit-border-image
+-webkit-transform-origin
+-webkit-transform-origin-x
+-webkit-transform-origin-y
+-webkit-transform-origin-z
+
 background-attachment
 background-blend-mode
 background-clip
 background-color
 background-image
 background-origin
 background-position
 background-position-x
 background-position-y
 background-repeat
@@ skipping 53 matching lines @@
 cursor
 empty-cells
 float
 height
 image-rendering
 isolation
 justify-items
 justify-self
 left
 letter-spacing
+line-height
 list-style
 list-style-image
 list-style-position
 list-style-type
 margin
 margin-bottom
 margin-left
 margin-right
 margin-top
 mask-source-type
@@ skipping 116 matching lines @@
 -webkit-border-before
 -webkit-border-before-color
 -webkit-border-before-style
 -webkit-border-before-width
 -webkit-border-end
 -webkit-border-end-color
 -webkit-border-end-style
 -webkit-border-end-width
 -webkit-border-fit
 -webkit-border-horizontal-spacing
--webkit-border-image
 // -webkit-border-radius differs from border-radius only in the interpretation of
 // a value consisting of two lengths: "-webkit-border-radius: l1 l2;" is equivalent
 // to "border-radius: l1 / l2;"
 -webkit-border-radius
 -webkit-border-start
 -webkit-border-start-color
 -webkit-border-start-style
 -webkit-border-start-width
 -webkit-border-vertical-spacing
 -webkit-box-align
@@ skipping 124 matching lines @@
 -webkit-text-emphasis-style
 -epub-text-emphasis-style alias_for=-webkit-text-emphasis-style
 -webkit-text-fill-color
 -webkit-text-security
 -webkit-text-stroke
 -webkit-text-stroke-color
 -webkit-text-stroke-width
 transform
 -webkit-transform
 transform-origin
--webkit-transform-origin
--webkit-transform-origin-x
--webkit-transform-origin-y
--webkit-transform-origin-z
 transform-style
 -webkit-transform-style
 -webkit-user-drag
 -webkit-user-modify
 -webkit-user-select
 -webkit-shape-outside alias_for=shape-outside
 -webkit-shape-margin alias_for=shape-margin
 -webkit-shape-image-threshold alias_for=shape-image-threshold
 shape-outside
 shape-margin
 shape-image-threshold
 max-zoom
 min-zoom
 orientation
 user-zoom
 -webkit-tap-highlight-color
 -webkit-app-region
 all
 
 // Internal properties.
 -internal-marquee-direction
 -internal-marquee-increment
 -internal-marquee-repetition
 -internal-marquee-speed
 -internal-marquee-style