Bug 1404232 - Add WebRenderLayerManager::WrUpdated() r=jrmuizel

gfx/layers/wr/WebRenderLayerManager.cpp

@@ -70,6 +70,7 @@ WebRenderLayerManager::Initialize(PCompositorBridgeChild* aCBChild,
   }
 
   mWrChild = static_cast<WebRenderBridgeChild*>(bridge);
+  WrBridge()->SetWebRenderLayerManager(this);
   WrBridge()->SendCreate(size.ToUnknownSize());
   WrBridge()->IdentifyTextureHost(textureFactoryIdentifier);
   WrBridge()->SetNamespace(id_namespace);
@@ -536,6 +537,12 @@ WebRenderLayerManager::ClearCachedResources(Layer* aSubtree)
   WrBridge()->EndClearCachedResources();
 }
 
+void
+WebRenderLayerManager::WrUpdated()
+{
+  // Handle removing all obsoleted WebRenderUserData
+}
+
 void
 WebRenderLayerManager::UpdateTextureFactoryIdentifier(const TextureFactoryIdentifier& aNewIdentifier,
                                                       uint64_t aDeviceResetSeqNo)