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

Source/core/css/CSSPropertyNames.in

Index: Source/core/css/CSSPropertyNames.in
diff --git a/Source/core/css/CSSPropertyNames.in b/Source/core/css/CSSPropertyNames.in
index bec51087cb67eb621fd0d9d9ce3f16d0ce5c3a7c..6684ae34ec9201353301fa942e17dcd9ef3d4073 100644
--- a/Source/core/css/CSSPropertyNames.in
+++ b/Source/core/css/CSSPropertyNames.in
@@ -8,10 +8,13 @@
 // 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
@@ -26,15 +29,20 @@ text-rendering
 -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
@@ -109,6 +117,7 @@ justify-items
 justify-self
 left
 letter-spacing
+line-height
 list-style
 list-style-image
 list-style-position
@@ -257,7 +266,6 @@ backface-visibility
 -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;"
@@ -402,10 +410,6 @@ perspective-origin
 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