From 13e12d23f3818a68847f28f3a3fac3220d134cd4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Emilio=20Cobos=20=C3=81lvarez?= <emilio@crisal.io>
Date: Sat, 26 Jan 2019 11:00:22 +0100
Subject: [PATCH] style: Use the style system's LengthPercentage for
 shape-margin.

This also makes us pass a few WPTs because we stop losing precision when
serializing the computed value.

Differential Revision: https://phabricator.services.mozilla.com/D17738
---
 components/style/properties/gecko.mako.rs | 2 +-
 components/style/values/generics/mod.rs   | 1 +
 2 files changed, 2 insertions(+), 1 deletion(-)

diff --git a/components/style/properties/gecko.mako.rs b/components/style/properties/gecko.mako.rs
index 970a807f0d9..a11d08ba44f 100644
--- a/components/style/properties/gecko.mako.rs
+++ b/components/style/properties/gecko.mako.rs
@@ -1396,7 +1396,7 @@ impl Clone for ${style_struct.gecko_struct_name} {
         "MozLength": impl_style_coord,
         "MozScriptMinSize": impl_absolute_length,
         "MozScriptSizeMultiplier": impl_simple,
-        "NonNegativeLengthPercentage": impl_style_coord,
+        "NonNegativeLengthPercentage": impl_simple,
         "NonNegativeNumber": impl_simple,
         "Number": impl_simple,
         "Opacity": impl_simple,
diff --git a/components/style/values/generics/mod.rs b/components/style/values/generics/mod.rs
index c18eb0e7a88..a5c8c957073 100644
--- a/components/style/values/generics/mod.rs
+++ b/components/style/values/generics/mod.rs
@@ -174,6 +174,7 @@ impl SpecifiedValueInfo for CounterStyleOrNone {
     ToComputedValue,
     ToCss,
 )]
+#[repr(transparent)]
 pub struct NonNegative<T>(pub T);
 
 /// A wrapper of greater-than-or-equal-to-one values.