Moved text-align to be generated in ComputedStyleBase.

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.
 
@@ skipping 339 matching lines @@
 stroke interpolable, inherited, svg, setter=setStrokePaint, custom_all
 stroke-dasharray interpolable, inherited, svg, name_for_methods=StrokeDashArray, converter=convertStrokeDasharray
 stroke-dashoffset interpolable, inherited, svg, name_for_methods=StrokeDashOffset, converter=convertLength
 stroke-linecap svg, inherited, type_name=LineCap, name_for_methods=CapStyle
 stroke-linejoin svg, inherited, type_name=LineJoin, name_for_methods=JoinStyle
 stroke-miterlimit interpolable, inherited, svg, type_name=float, name_for_methods=StrokeMiterLimit
 stroke-opacity interpolable, inherited, svg, converter=convertNumberOrPercentage
 stroke-width interpolable, inherited, svg, converter=convertUnzoomedLength
 table-layout
 tab-size inherited, converter=convertLengthOrTabSpaces, type_name=TabSize
-text-align inherited, custom_value
+// The order of the text-align keywords must match the order of the text-align values in
+// CSSValueKeywords.in.

[sashab, 2016/12/15 02:58:31]

To fix this, do a pre-patch like the ones in here:
https://bugs.chromium.org/p/chromium/issues/detail?id=665272

+text-align inherited, custom_value, keyword_only, keywords=[left|right|center|justify|webkitLeft|webkitRight|webkitCenter|start|end], initial_keyword=start
 text-align-last inherited, type_name=TextAlignLast
 text-anchor inherited, svg
 text-combine-upright inherited, type_name=TextCombine, name_for_methods=TextCombine
 // FIXME: We shouldn't switch between shorthand/not shorthand based on a runtime flag
 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
@@ skipping 260 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