Bug 1377053 - Add test for discrete interpolation of stroke-dasharray with 'none'; r=hiro

MozReview-Commit-ID: MuxvAeVwes

--HG--
extra : rebase_source : 6837b4273abee1f2c600524dd376c5e4698a691b

testing/web-platform/meta/MANIFEST.json

@@ -220161,7 +220161,7 @@
    "testharness"
   ],
   "web-animations/animation-model/animation-types/property-list.js": [
-   "9dfb34806dfd264bb1155830b0548d53fcae9007",
+   "31ad7b4aa12e4485f95545b087779cabb56c696c",
    "support"
   ],
   "web-animations/animation-model/animation-types/property-types.js": [

testing/web-platform/tests/web-animations/animation-model/animation-types/property-list.js

@@ -1231,7 +1231,10 @@ var gCSSProperties = {
   },
   'stroke-dasharray': {
     // https://svgwg.org/svg2-draft/painting.html#StrokeDasharrayProperty
-    types: [ 'dasharray' ]
+    types: [
+      'dasharray',
+      { type: 'discrete', options: [ [ 'none', '10, 20' ] ] }
+    ]
   },
   'stroke-dashoffset': {
     // https://svgwg.org/svg2-draft/painting.html#StrokeDashoffsetProperty