1 files changed, 9 insertions, 0 deletions
diff --git a/gfx/layers/wr/StackingContextHelper.cpp b/gfx/layers/wr/StackingContextHelper.cpp
index d5ffbf26a0..2c0627f63f 100644
--- a/gfx/layers/wr/StackingContextHelper.cpp
+++ b/gfx/layers/wr/StackingContextHelper.cpp
@@ -272,5 +272,14 @@ Maybe<gfx::Matrix4x4> StackingContextHelper::GetDeferredTransformMatrix()
   }
 }
 
+void StackingContextHelper::ClearDeferredTransformItem() const {
+  mDeferredTransformItem = nullptr;
+}
+
+void StackingContextHelper::RestoreDeferredTransformItem(
+    nsDisplayTransform* aItem) const {
+  mDeferredTransformItem = aItem;
+}
+
 }  // namespace layers
 }  // namespace mozilla