servo: Merge #16864 - Stylo: Change mask-repeat initial value from no-repeat to repeat (from CJKu:bug-1364273); r=heycam

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Change mask-repeat initial value from no-repeat to repeat.

Gecko bug link:
https://bugzilla.mozilla.org/show_bug.cgi?id=1364273
---
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- [X] `./mach test-tidy` does not report any errors
- [ ] These changes fix #__ (github issue number if applicable).

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Source-Repo: https://github.com/servo/servo
Source-Revision: 5403c2fff0877ba8833262fde191a3e205ddd247

--HG--
extra : subtree_source : https%3A//hg.mozilla.org/projects/converted-servo-linear
extra : subtree_revision : 4a2e2e9d65235f49d7b676e261e645cd69785723

servo/components/style/properties/longhand/svg.mako.rs

@@ -81,12 +81,12 @@ ${helpers.single_keyword("mask-mode",
 
     #[inline]
     pub fn get_initial_value() -> computed_value::T {
-        computed_value::T(RepeatKeyword::NoRepeat, RepeatKeyword::NoRepeat)
+        computed_value::T(RepeatKeyword::Repeat, RepeatKeyword::Repeat)
     }
 
     #[inline]
     pub fn get_initial_specified_value() -> SpecifiedValue {
-        SpecifiedValue::Other(RepeatKeyword::NoRepeat, None)
+        SpecifiedValue::Other(RepeatKeyword::Repeat, None)
     }
 </%helpers:vector_longhand>