--- a/layout/painting/nsDisplayList.cpp
+++ b/layout/painting/nsDisplayList.cpp
@@ -6752,17 +6752,17 @@ bool
 nsDisplayBlendMode::CreateWebRenderCommands(mozilla::wr::DisplayListBuilder& aBuilder,
                                             mozilla::wr::IpcResourceUpdateQueue& aResources,
                                             const StackingContextHelper& aSc,
                                             mozilla::layers::WebRenderLayerManager* aManager,
                                             nsDisplayListBuilder* aDisplayListBuilder)
 {
   nsTArray<mozilla::wr::WrFilterOp> filters;
   StackingContextHelper sc(aSc, aBuilder, filters, LayoutDeviceRect(), nullptr,
-                           0, nullptr, nullptr, nullptr,
+                           nullptr, nullptr, nullptr, nullptr,
                            nsCSSRendering::GetGFXBlendMode(mBlendMode));
 
   return nsDisplayWrapList::CreateWebRenderCommands(aBuilder,aResources, sc,
                                                     aManager, aDisplayListBuilder);
 }
 
 // nsDisplayBlendMode uses layers for rendering
 already_AddRefed<Layer>
@@ -9171,17 +9171,17 @@ nsDisplayPerspective::CreateWebRenderCom
   gfx::Matrix4x4 transformForSC = gfx::Matrix4x4::Translation(roundedOrigin);
 
   nsTArray<mozilla::wr::WrFilterOp> filters;
   StackingContextHelper sc(aSc,
                            aBuilder,
                            filters,
                            LayoutDeviceRect(),
                            nullptr,
-                           0,
+                           nullptr,
                            nullptr,
                            &transformForSC,
                            &perspectiveMatrix,
                            gfx::CompositionOp::OP_OVER,
                            !BackfaceIsHidden(),
                            true);
 
   return mList.CreateWebRenderCommands(aBuilder, aResources, sc,
@@ -9945,17 +9945,17 @@ nsDisplayFilter::CreateWebRenderCommands
       }
       default:
         return false;
     }
   }
 
   float opacity = mFrame->StyleEffects()->mOpacity;
   StackingContextHelper sc(aSc, aBuilder, wrFilters, LayoutDeviceRect(), nullptr,
-                           0, opacity != 1.0f && mHandleOpacity ? &opacity : nullptr);
+                           nullptr, opacity != 1.0f && mHandleOpacity ? &opacity : nullptr);
 
   nsDisplaySVGEffects::CreateWebRenderCommands(aBuilder, aResources, sc, aManager, aDisplayListBuilder);
   return true;
 }
 
 #ifdef MOZ_DUMP_PAINTING
 void
 nsDisplayFilter::PrintEffects(nsACString& aTo)