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

Source/core/workers/WorkerGlobalScopeProxy.h

Index: Source/core/workers/WorkerGlobalScopeProxy.h
diff --git a/Source/core/workers/WorkerGlobalScopeProxy.h b/Source/core/workers/WorkerGlobalScopeProxy.h
index 74dfe51dfa6daa91a084dfa652eb64ee5717a5c1..1de5fab514e4c7abd87f14ad40fe18237d27f0d2 100644
--- a/Source/core/workers/WorkerGlobalScopeProxy.h
+++ b/Source/core/workers/WorkerGlobalScopeProxy.h
@@ -43,6 +43,7 @@ class KURL;
 
 // A proxy to talk to the worker global scope.
 class CORE_EXPORT WorkerGlobalScopeProxy {
+    WTF_MAKE_FAST_ALLOCATED(WorkerGlobalScopeProxy);
 public:
     virtual ~WorkerGlobalScopeProxy() { }