Adding allocator annotations to blink classes and structs.

Source/core/timing/SharedWorkerPerformance.h

Index: Source/core/timing/SharedWorkerPerformance.h
diff --git a/Source/core/timing/SharedWorkerPerformance.h b/Source/core/timing/SharedWorkerPerformance.h
index 70dd9cc91c70939eede02b94459fbe5c56e44576..e7820a80ff9d0ee51f734fcdbea71003cf88b60f 100644
--- a/Source/core/timing/SharedWorkerPerformance.h
+++ b/Source/core/timing/SharedWorkerPerformance.h
@@ -40,6 +40,7 @@ class SharedWorker;
 
 class SharedWorkerPerformance final : public NoBaseWillBeGarbageCollected<SharedWorkerPerformance>, public WillBeHeapSupplement<SharedWorker> {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(SharedWorkerPerformance);
+    WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(SharedWorkerPerformance);
 public:
     static SharedWorkerPerformance& from(SharedWorker&);