Update the snap points css properties

third_party/WebKit/Source/core/css/CSSValueKeywords.json5

 {
   // The mode argument is used to limit the keyword to be used only for certain
   // CSSParserModes. Values that have the prefix -internal- are only allowed by
   // CSSParserModes listed in allowInternalPropertyAndValue()
 
   parameters: {
     mode: {},
   },
 
   //
@@ skipping 867 matching lines @@
     "on",
     "off",
 
     // image-rendering
     //auto
     //optimizeSpeed
     "optimizeQuality",
     "pixelated",
     "-webkit-optimize-contrast",
 
+    // image-orientation
+    "from-image",
+
     // shape-outside
     "nonzero",
     "evenodd",
     "at",
     // closest-side
     // farthest-side
 
     "alphabetic",
 
     // (display-mode:) media feature
@@ skipping 205 matching lines @@
     // offset-path
     "path",
     "ray",
     "sides",
 
     "calc",
     "-webkit-calc",
 
     // scroll-snap-type
     // none
+    "x",
+    "y",
+    // block
+    // inline
+    // both

[meade_UTC10, 2017/06/14 01:24:15]

Is this intentionally still commented out?

[sunyunjia, 2017/06/14 18:36:22]

I'm just putting these keywords here. I guess the rule is to comment out
keywords that have already been defined in this file?

     "mandatory",
     "proximity",
-    "from-image",
+
+    // scroll-snap-align
+    // none
+    // start
+    // end
+    // center
+
+    // scroll-snap-stop
+    // normal
+    // always
+
 
     // containment
     // paint
     "style",
     "layout",
     "size",
 
     // grid auto-repeat
     "auto-fill",
     "auto-fit",
@@ skipping 11 matching lines @@
     // shape
     // rect
     // round
 
     // color-gamut
     // srgb
     "p3",
     "rec2020",
   ],
 }