Always enable Oilpan for EventSource.

Source/core/loader/WorkerLoaderClientBridge.h

Index: Source/core/loader/WorkerLoaderClientBridge.h
diff --git a/Source/core/loader/WorkerLoaderClientBridge.h b/Source/core/loader/WorkerLoaderClientBridge.h
index f030aa5eecd2e75c382b067536a4de2d289a2556..d37627a7a54926f00ecf6978e5d07c475794e4c9 100644
--- a/Source/core/loader/WorkerLoaderClientBridge.h
+++ b/Source/core/loader/WorkerLoaderClientBridge.h
@@ -44,6 +44,7 @@ class WorkerLoaderProxy;
 // passed to and used on the main thread. Each did* method relays the given
 // data to the client wrapper on the worker context thread.
 class WorkerLoaderClientBridge : public ThreadableLoaderClient {
+    WTF_MAKE_FAST_ALLOCATED(WorkerLoaderClientBridge);
 public:
     static PassOwnPtr<ThreadableLoaderClient> create(PassRefPtr<ThreadableLoaderClientWrapper>, PassRefPtr<WorkerLoaderProxy>);
     virtual ~WorkerLoaderClientBridge();