Bug 1337655 - Turn on moz-prefixed gradient functions again.

MozReview-Commit-ID: AUDeFVbQsT3

layout/style/test/stylo-failures.md

@@ -103,6 +103,10 @@ to mochitest command.
     * test_value_storage.html `font-variant` [167]
     * test_specified_value_serialization.html `bug-721136` [1]
 * Unsupported prefixed values
+  * moz-prefixed gradient functions bug 1337655
+    * test_value_storage.html `-moz-linear-gradient` [322]
+    * ... `-moz-radial-gradient` [309]
+    * ... `-moz-repeating-` [298]
   * serialization of prefixed gradient functions bug 1358710
     * test_specified_value_serialization.html `-webkit-radial-gradient` [1]
   * moz-prefixed intrinsic width values bug 1355402

modules/libpref/init/all.js

@@ -2801,11 +2801,7 @@ pref("layout.css.prefixes.box-sizing", true);
 pref("layout.css.prefixes.font-features", true);
 
 // Is -moz-prefixed gradient functions enabled?
-#ifdef NIGHTLY_BUILD
-pref("layout.css.prefixes.gradients", false);
-#else
 pref("layout.css.prefixes.gradients", true);
-#endif
 
 // Are webkit-prefixed properties & property-values supported?
 pref("layout.css.prefixes.webkit", true);