From b91ae6b1f9155bd4f17c5403a520568bdf6cac1e Mon Sep 17 00:00:00 2001
From: Brad Werth <bwerth@mozilla.com>
Date: Thu, 8 Feb 2018 11:00:56 -0800
Subject: [PATCH] style: support shape-margin.

Bug: 1265342
Reviewed-by: xidorn
MozReview-Commit-ID: 99pLZsFA9mj
---
 components/style/properties/longhand/box.mako.rs | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/components/style/properties/longhand/box.mako.rs b/components/style/properties/longhand/box.mako.rs
index 806afcbd1b6..026a3ca7936 100644
--- a/components/style/properties/longhand/box.mako.rs
+++ b/components/style/properties/longhand/box.mako.rs
@@ -660,9 +660,21 @@ ${helpers.predefined_type(
     products="gecko",
     gecko_pref="layout.css.shape-outside.enabled",
     animation_value_type="ComputedValue",
+    flags="APPLIES_TO_FIRST_LETTER",
     spec="https://drafts.csswg.org/css-shapes/#shape-image-threshold-property",
 )}
 
+${helpers.predefined_type(
+    "shape-margin",
+    "NonNegativeLengthOrPercentage",
+    "computed::NonNegativeLengthOrPercentage::zero()",
+    products="gecko",
+    gecko_pref="layout.css.shape-outside.enabled",
+    animation_value_type="NonNegativeLengthOrPercentage",
+    flags="APPLIES_TO_FIRST_LETTER",
+    spec="https://drafts.csswg.org/css-shapes/#shape-margin-property",
+)}
+
 ${helpers.predefined_type(
     "shape-outside",
     "basic_shape::FloatAreaShape",