Auto merge of #19057 - mrobinson:update-wr-sticky-api, r=glennw

Update WR to use the new sticky positioning API

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1 files changed, 8 insertions, 0 deletions

diff --git a/components/layout/model.rs b/components/layout/model.rs
index 02cae69fa21..9d0d4c69926 100644
--- a/components/layout/model.rs
+++ b/components/layout/model.rs
@@ -425,6 +425,14 @@ impl MaybeAuto {
     }
 
     #[inline]
+    pub fn to_option(&self) -> Option<Au> {
+        match *self {
+            MaybeAuto::Specified(value) => Some(value),
+            MaybeAuto::Auto => None,
+        }
+    }
+
+    #[inline]
     pub fn specified_or_default(&self, default: Au) -> Au {
         match *self {
             MaybeAuto::Auto => default,