Index: Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.cpp |
diff --git a/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.cpp b/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.cpp |
index f42f49f4232a23a15a6111713127fb6fe0680579..415b92719567976dc6c01e8e233de0c40d86adf0 100644 |
--- a/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.cpp |
+++ b/Source/modules/serviceworkers/ServiceWorkerGlobalScopeClient.cpp |
@@ -43,7 +43,9 @@ const char* ServiceWorkerGlobalScopeClient::supplementName() |
ServiceWorkerGlobalScopeClient* ServiceWorkerGlobalScopeClient::from(ExecutionContext* context) |
{ |
- return static_cast<ServiceWorkerGlobalScopeClient*>(WillBeHeapSupplement<WorkerClients>::from(toWorkerGlobalScope(context)->clients(), supplementName())); |
+ WorkerClients* clients = toWorkerGlobalScope(context)->clients(); |
+ ASSERT(clients); |
+ return static_cast<ServiceWorkerGlobalScopeClient*>(WillBeHeapSupplement<WorkerClients>::from(clients, supplementName())); |
} |
void provideServiceWorkerGlobalScopeClientToWorker(WorkerClients* clients, PassOwnPtrWillBeRawPtr<ServiceWorkerGlobalScopeClient> client) |