Moved text-align to be generated in ComputedStyleBase.

third_party/WebKit/Source/core/css/CSSProperties.in

Index: third_party/WebKit/Source/core/css/CSSProperties.in
diff --git a/third_party/WebKit/Source/core/css/CSSProperties.in b/third_party/WebKit/Source/core/css/CSSProperties.in
index 26ed284f887781d9f694a472c064d22db5b3cc8d..db3183d7cb06458ff378bf6d3f9f8d77e78be269 100644
--- a/third_party/WebKit/Source/core/css/CSSProperties.in
+++ b/third_party/WebKit/Source/core/css/CSSProperties.in
@@ -357,7 +357,9 @@ 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