Expose a way to flush shadow root stylesheets from layout

1 files changed, 11 insertions, 1 deletions

diff --git a/components/layout_thread/dom_wrapper.rs b/components/layout_thread/dom_wrapper.rs
index 8dc06aad9cb..bbc023cf958 100644
--- a/components/layout_thread/dom_wrapper.rs
+++ b/components/layout_thread/dom_wrapper.rs
@@ -86,7 +86,9 @@ use style::font_metrics::ServoMetricsProvider;
 use style::properties::{ComputedValues, PropertyDeclarationBlock};
 use style::selector_parser::{extended_filtering, PseudoElement, SelectorImpl};
 use style::selector_parser::{AttrValue as SelectorAttrValue, Lang, NonTSPseudoClass};
-use style::shared_lock::{Locked as StyleLocked, SharedRwLock as StyleSharedRwLock};
+use style::shared_lock::{
+    Locked as StyleLocked, SharedRwLock as StyleSharedRwLock, SharedRwLockReadGuard,
+};
 use style::str::is_whitespace;
 use style::stylist::CascadeData;
 use style::CaseSensitivityExt;
@@ -216,6 +218,14 @@ impl<'sr> ServoShadowRoot<'sr> {
             chain: PhantomData,
         }
     }
+
+    pub fn flush_stylesheets(&self, guard: &SharedRwLockReadGuard) {
+        unsafe {
+            &self
+                .shadow_root
+                .flush_stylesheets::<ServoLayoutElement>(guard)
+        };
+    }
 }
 
 impl<'ln> TNode for ServoLayoutNode<'ln> {