[CSS Typed OM] Add a property test generator for testing the inline StylePropertyMap

third_party/WebKit/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 should be virtually identical to the
 // properties they alias. Minor parsing differences are allowed as long as
 // the CSSValues created are of the same format of the aliased property.
 
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 // - direction_aware
 // This property resolves to a different property based on the current direction
 // and writing mode.
 
 
 // Properties with StyleBuilder handling
 
 // Animation Priority properties
 animation-delay custom_all
-animation-direction custom_all
+animation-direction keywords=[normal|reverse|alternate|alternate-reverse], supports_multiple, custom_all
 animation-duration custom_all
 animation-fill-mode custom_all
 animation-iteration-count keywords=[infinite], supports_multiple, custom_all
 animation-name custom_all
 animation-play-state custom_all
 animation-timing-function custom_all
 transition-delay custom_all
 transition-duration custom_all
 transition-property custom_all
 transition-timing-function custom_all
@@ skipping 478 matching lines @@
 -webkit-text-size-adjust alias_for=text-size-adjust
 -webkit-transform alias_for=transform
 -webkit-transform-origin alias_for=transform-origin
 -webkit-transform-style alias_for=transform-style
 -webkit-transition alias_for=transition
 -webkit-transition-delay alias_for=transition-delay
 -webkit-transition-duration alias_for=transition-duration
 -webkit-transition-property alias_for=transition-property
 -webkit-transition-timing-function alias_for=transition-timing-function
 -webkit-user-select alias_for=user-select