Added initial_keyword flag to CSSProperties.in

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.
 
 
 // - runtime_flag=CSSGridLayout
 // The flag on RuntimeEnabledFeatures conditionally enables the property.
 // This doesn't currently work with alias_for.
 
 
 // - descriptor_only
 // These are actually descriptors and not CSS properties. Properties with
 // the same name as a descriptor do not get this flag.
 
 
 // - longhands=property;other-property
 // The property is a shorthand for several other properties.
 
 
-// keyword_only
+// - keyword_only
 // These properties only store keyword values. This is used when
 // generating the ComputedStyle storage for the property. The initial
-// value for this property on a ComputedStyle is the first keyword in
-// the specified list of keywords.
+// value for this property on a ComputedStyle is specified with the
+// initial_keyword flag below.
 // TODO(sashab, meade): Remove this once TypedOM types are specified for
 // every property, since this value can be inferred from that.
 
 
 // - keywords=[keyword1|keyword2]
 // This specifies all valid keyword values for the property.
 // TODO(sashab): Once all properties are represented here, delete
 // CSSValueKeywords.in and use this list instead.
 
 
+// - initial_keyword
+// This specifies the initial keyword value for the keyword_only
+// property.
+
+
 // Flags which go into CSSOMTypes:
 // - typedom_types=[Type|OtherType]
 // The property can take types specified in typedom_types for CSS Typed OM.
 // Keyword does not need to be specified as every property can take keywords.
 // - keywords=[keyword1|keyword2]
 // The property can take these keywords.
 // - supports_multiple
 // The property supports a list of values.
 // - supports_percentage
 // The property supports percentage types.
@@ skipping 144 matching lines @@
 border-top-right-radius interpolable, initial=initialBorderRadius, converter=convertRadius
 border-top-style type_name=EBorderStyle, initial=initialBorderStyle
 border-top-width interpolable, initial=initialBorderWidth, converter=convertLineWidth<unsigned>, typedom_types=[Length], keywords=[thin|medium|thick], supports_percentage
 bottom typedom_types=[Length], keywords=[auto], supports_percentage, interpolable, initial=initialOffset, converter=convertLengthOrAuto
 box-shadow interpolable, converter=convertShadow
 box-sizing
 break-after type_name=EBreak
 break-before type_name=EBreak
 break-inside type_name=EBreak
 buffered-rendering svg
-caption-side inherited, keyword_only, keywords=[top|bottom|left|right]
+caption-side inherited, keyword_only, keywords=[top|bottom|left|right], initial_keyword=top
 caret-color inherited, custom_all
 clear
 clip interpolable, converter=convertClip, custom_all
 clip-path interpolable, converter=convertClipPath
 clip-rule inherited, svg, type_name=WindRule
 color-interpolation inherited, svg
 color-interpolation-filters inherited, svg, type_name=EColorInterpolation
 color-rendering inherited, svg
 column-fill type_name=ColumnFill
 contain runtime_flag=CSSContainment, converter=convertFlags<Containment>
 content custom_all, typedom_types=[Image], supports_multiple
 counter-increment custom_all
 counter-reset custom_all
 cursor inherited, custom_all
 cx interpolable, svg, converter=convertLength
 cy interpolable, svg, converter=convertLength
 d interpolable, svg, converter=convertPathOrNone
 display
 dominant-baseline inherited, svg
-empty-cells inherited, type_name=EEmptyCells, keyword_only, keywords=[show|hide]
+empty-cells inherited, type_name=EEmptyCells, keyword_only, keywords=[show|hide], initial_keyword=show
 fill interpolable, inherited, svg, setter=setFillPaint, custom_all
 fill-opacity interpolable, inherited, svg, converter=convertNumberOrPercentage
 fill-rule inherited, svg, type_name=WindRule
 filter interpolable, converter=convertFilterOperations
 flex-basis interpolable, converter=convertLengthOrAuto
 flex-direction
 flex-grow interpolable, type_name=float
 flex-shrink interpolable, type_name=float
 flex-wrap
-float type_name=EFloat, name_for_methods=Floating, keyword_only, keywords=[none|left|right]
+float type_name=EFloat, name_for_methods=Floating, keyword_only, keywords=[none|left|right], initial_keyword=none
 flood-color interpolable, svg, converter=convertColor
 flood-opacity interpolable, svg, converter=convertNumberOrPercentage
 grid-auto-columns runtime_flag=CSSGridLayout, converter=convertGridTrackSizeList
 grid-auto-flow runtime_flag=CSSGridLayout, converter=convertGridAutoFlow, type_name=GridAutoFlow
 grid-auto-rows runtime_flag=CSSGridLayout, converter=convertGridTrackSizeList
 grid-column-end runtime_flag=CSSGridLayout, converter=convertGridPosition
 grid-column-gap runtime_flag=CSSGridLayout, converter=convertLength
 grid-column-start runtime_flag=CSSGridLayout, converter=convertGridPosition
 grid-row-end runtime_flag=CSSGridLayout, converter=convertGridPosition
 grid-row-gap runtime_flag=CSSGridLayout, converter=convertLength
 grid-row-start runtime_flag=CSSGridLayout, converter=convertGridPosition
 grid-template-areas runtime_flag=CSSGridLayout, custom_all
 grid-template-columns runtime_flag=CSSGridLayout, custom_all
 grid-template-rows runtime_flag=CSSGridLayout, custom_all
 height typedom_types=[Length], keywords=[auto], supports_percentage, interpolable, initial=initialSize, converter=convertLengthSizing
 hyphens runtime_flag=CSSHyphens, inherited, type_name=Hyphens
 image-rendering inherited
 image-orientation runtime_flag=ImageOrientation, inherited, name_for_methods=RespectImageOrientation, converter=convertImageOrientation
 isolation
 justify-content initial=initialContentAlignment, converter=convertContentAlignmentData
 justify-items runtime_flag=CSSGridLayout, initial=initialSelfAlignment, converter=convertSelfOrDefaultAlignmentData
 justify-self runtime_flag=CSSGridLayout, initial=initialSelfAlignment, converter=convertSelfOrDefaultAlignmentData
 left typedom_types=[Length], keywords=[auto], supports_percentage, interpolable, initial=initialOffset, converter=convertLengthOrAuto
 letter-spacing interpolable, inherited, initial=initialLetterWordSpacing, converter=convertSpacing
 lighting-color interpolable, svg, converter=convertColor
 line-height interpolable, inherited, getter=specifiedLineHeight, converter=convertLineHeight
 list-style-image interpolable, inherited, custom_value, typedom_types=[Image]
-list-style-position inherited, keyword_only, keywords=[outside|inside]
+list-style-position inherited, keyword_only, keywords=[outside|inside], initial_keyword=outside
 list-style-type inherited
 margin-bottom interpolable, initial=initialMargin, converter=convertQuirkyLength
 margin-left interpolable, initial=initialMargin, converter=convertQuirkyLength
 margin-right interpolable, initial=initialMargin, converter=convertQuirkyLength
 margin-top interpolable, initial=initialMargin, converter=convertQuirkyLength
 marker-end inherited, svg, name_for_methods=MarkerEndResource, converter=convertFragmentIdentifier
 marker-mid inherited, svg, name_for_methods=MarkerMidResource, converter=convertFragmentIdentifier
 marker-start inherited, svg, name_for_methods=MarkerStartResource, converter=convertFragmentIdentifier
 mask svg, name_for_methods=MaskerResource, converter=convertFragmentIdentifier
 mask-source-type runtime_flag=CSSMaskSourceType, custom_all
@@ skipping 72 matching lines @@
 text-decoration use_handlers_for=CSSPropertyTextDecorationLine, longhands=text-decoration-line;text-decoration-style;text-decoration-color
 text-decoration-color runtime_flag=CSS3TextDecorations, interpolable, custom_all
 text-decoration-line runtime_flag=CSS3TextDecorations, name_for_methods=TextDecoration, type_name=TextDecoration, converter=convertFlags<TextDecoration>
 text-decoration-skip runtime_flag=CSS3TextDecorations, inherited, type_name=TextDecorationSkip, converter=convertFlags<TextDecorationSkip>
 text-decoration-style runtime_flag=CSS3TextDecorations, type_name=TextDecorationStyle
 text-indent interpolable, inherited, custom_all
 text-justify runtime_flag=CSS3Text, inherited, type_name=TextJustify
 text-overflow type_name=TextOverflow
 text-shadow interpolable, inherited, converter=convertShadow
 text-size-adjust inherited, converter=convertTextSizeAdjust, type_name=TextSizeAdjust
-text-transform inherited, keyword_only, keywords=[none|capitalize|uppercase|lowercase]
+text-transform inherited, keyword_only, keywords=[capitalize|uppercase|lowercase|none], initial_keyword=none
 text-underline-position runtime_flag=CSS3TextDecorations, inherited, type_name=TextUnderlinePosition
 top typedom_types=[Length], keywords=[auto], supports_percentage, interpolable, initial=initialOffset, converter=convertLengthOrAuto
 touch-action converter=convertFlags<TouchAction>, type_name=TouchAction
 transform typedom_types=[Transform], keywords=[none], interpolable, converter=convertTransformOperations
 transform-origin interpolable, converter=convertTransformOrigin
 transform-style name_for_methods=TransformStyle3D
 translate runtime_flag=CSSIndependentTransformProperties, converter=convertTranslate, interpolable
 rotate runtime_flag=CSSIndependentTransformProperties, converter=convertRotate, interpolable
 scale runtime_flag=CSSIndependentTransformProperties, converter=convertScale, interpolable
 unicode-bidi
 vector-effect svg
 vertical-align interpolable, custom_inherit, custom_value
-visibility interpolable, inherited, independent, keyword_only, keywords=[visible|hidden|collapse]
+visibility interpolable, inherited, independent, keyword_only, keywords=[visible|hidden|collapse], initial_keyword=visible
 x interpolable, svg, converter=convertLength
 y interpolable, svg, converter=convertLength
 -webkit-appearance type_name=ControlPart
 -webkit-app-region custom_all
 -webkit-background-clip use_handlers_for=CSSPropertyBackgroundClip
 -webkit-background-origin use_handlers_for=CSSPropertyBackgroundOrigin
 -webkit-border-horizontal-spacing interpolable, inherited, name_for_methods=HorizontalBorderSpacing, converter=convertComputedLength<short>
 -webkit-border-image initial=initialNinePieceImage, custom_value
 -webkit-border-vertical-spacing interpolable, inherited, name_for_methods=VerticalBorderSpacing, converter=convertComputedLength<short>
 -webkit-box-align type_name=EBoxAlignment
@@ skipping 232 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