Bug 1255401 - fix getCSSValuesForProperty result for "quotes" property; r=heycam

It seemed valid to simply set the expected variants in
nsCSSPropList.h; other properties (e.g., align-content) do this as
well.

MozReview-Commit-ID: HVZGOofkwi1

--HG--
extra : rebase_source : 53388e48c491843a3fd93a3c46fdcd9c9bd3cc41

devtools/shared/css/generated/properties-db.js

@@ -8127,6 +8127,7 @@ exports.CSS_PROPERTIES = {
     "values": [
       "inherit",
       "initial",
+      "none",
       "unset"
     ]
   },

layout/inspector/tests/test_bug877690.html

@@ -217,6 +217,11 @@ function do_test() {
   var expected = [ "inherit", "initial", "unset" ];
   ok(testValues(values, expected), "property all's values.");
 
+  var prop = "quotes"
+  var values = InspectorUtils.getCSSValuesForProperty(prop);
+  var expected = [ "inherit", "initial", "unset", "none" ];
+  ok(testValues(values, expected), "property quotes's values.");
+
   SimpleTest.finish();
 }
 

layout/style/nsCSSPropList.h

@@ -3580,7 +3580,7 @@ CSS_PROP_LIST(
     Quotes,
     CSS_PROPERTY_PARSE_FUNCTION,
     "",
-    0,
+    VARIANT_HOS,
     nullptr,
     CSS_PROP_NO_OFFSET,
     eStyleAnimType_Discrete)