Make classes and structures in core/workers, core/timing and core/testing fast-allocated.

Source/core/workers/WorkerInspectorProxy.h

Index: Source/core/workers/WorkerInspectorProxy.h
diff --git a/Source/core/workers/WorkerInspectorProxy.h b/Source/core/workers/WorkerInspectorProxy.h
index 31ceee807b1cf3eb1733cdae62c69c64a4bc17f6..73dddacc3bf5619e7bbf5a89ce60fb7a675b8fcd 100644
--- a/Source/core/workers/WorkerInspectorProxy.h
+++ b/Source/core/workers/WorkerInspectorProxy.h
@@ -20,6 +20,7 @@ class WorkerThread;
 // A proxy for talking to the worker inspector on the worker thread.
 // All of these methods should be called on the main thread.
 class CORE_EXPORT WorkerInspectorProxy final {
+    WTF_MAKE_FAST_ALLOCATED(WorkerInspectorProxy);
 public:
     static PassOwnPtr<WorkerInspectorProxy> create();