Make RESTYLE_SELF imply RESTYLE_DESCENDANTS.

This is a temporary workaround for #8438.

1 files changed, 6 insertions, 1 deletions

diff --git a/components/layout/wrapper.rs b/components/layout/wrapper.rs
index ae8462426e8..ad745d2d091 100644
--- a/components/layout/wrapper.rs
+++ b/components/layout/wrapper.rs
@@ -413,7 +413,7 @@ impl<'le> LayoutElement<'le> {
     }
 
     /// Properly marks nodes as dirty in response to restyle hints.
-    pub fn note_restyle_hint(&self, hint: RestyleHint) {
+    pub fn note_restyle_hint(&self, mut hint: RestyleHint) {
         // Bail early if there's no restyling to do.
         if hint.is_empty() {
             return;
@@ -446,6 +446,11 @@ impl<'le> LayoutElement<'le> {
         // Process hints.
         if hint.contains(RESTYLE_SELF) {
             dirty_node(&node);
+
+            // FIXME(bholley, #8438): We currently need to RESTYLE_DESCENDANTS in the
+            // RESTYLE_SELF case in order to make sure "inherit" style structs propagate
+            // properly. See the explanation in the github issue.
+            hint.insert(RESTYLE_DESCENDANTS);
         }
         if hint.contains(RESTYLE_DESCENDANTS) {
             unsafe { node.set_dirty_descendants(true); }