--- a/layout/style/ServoBindings.cpp
+++ b/layout/style/ServoBindings.cpp
@@ -1036,16 +1036,23 @@ Gecko_CopyClipPathValueFrom(mozilla::Sty
 }
 
 void
 Gecko_DestroyClipPath(mozilla::StyleClipPath* aClip)
 {
   aClip->~StyleClipPath();
 }
 
+void
+Gecko_StyleClipPath_SetURLValue(mozilla::StyleClipPath* aClip, ServoBundledURI aURI)
+{
+  RefPtr<css::URLValue> url = aURI.IntoCssUrl();
+  aClip->SetURL(url.get());
+}
+
 mozilla::StyleBasicShape*
 Gecko_NewBasicShape(mozilla::StyleBasicShapeType aType)
 {
   RefPtr<StyleBasicShape> ptr = new mozilla::StyleBasicShape(aType);
   return ptr.forget().take();
 }
 
 void

--- a/layout/style/ServoBindings.h
+++ b/layout/style/ServoBindings.h
@@ -287,16 +287,17 @@ void Gecko_ResetStyleCoord(nsStyleUnit* 
 
 // Set an nsStyleCoord to a computed `calc()` value
 void Gecko_SetStyleCoordCalcValue(nsStyleUnit* unit, nsStyleUnion* value, nsStyleCoord::CalcValue calc);
 
 void Gecko_CopyClipPathValueFrom(mozilla::StyleClipPath* dst, const mozilla::StyleClipPath* src);
 
 void Gecko_DestroyClipPath(mozilla::StyleClipPath* clip);
 mozilla::StyleBasicShape* Gecko_NewBasicShape(mozilla::StyleBasicShapeType type);
+void Gecko_StyleClipPath_SetURLValue(mozilla::StyleClipPath* clip, ServoBundledURI uri);
 
 void Gecko_ResetFilters(nsStyleEffects* effects, size_t new_len);
 void Gecko_CopyFiltersFrom(nsStyleEffects* aSrc, nsStyleEffects* aDest);
 void Gecko_nsStyleFilter_SetURLValue(nsStyleFilter* effects, ServoBundledURI uri);
 
 void Gecko_FillAllBackgroundLists(nsStyleImageLayers* layers, uint32_t max_len);
 void Gecko_FillAllMaskLists(nsStyleImageLayers* layers, uint32_t max_len);
 NS_DECL_THREADSAFE_FFI_REFCOUNTING(nsStyleCoord::Calc, Calc);