Always enable Oilpan for EventSource.

Source/core/loader/WorkerLoaderClientBridgeSyncHelper.h

Index: Source/core/loader/WorkerLoaderClientBridgeSyncHelper.h
diff --git a/Source/core/loader/WorkerLoaderClientBridgeSyncHelper.h b/Source/core/loader/WorkerLoaderClientBridgeSyncHelper.h
index 7c23f6fe5d08b6aae3af53fb7d29065abb5c76f8..c0c6132ab0eea9bb02a1a88efb735b5b9eece6c3 100644
--- a/Source/core/loader/WorkerLoaderClientBridgeSyncHelper.h
+++ b/Source/core/loader/WorkerLoaderClientBridgeSyncHelper.h
@@ -47,6 +47,7 @@ namespace blink {
 // passed to and used on the main thread. Each did* method records the given
 // data so that they can be run on the worker thread later (by run()).
 class WorkerLoaderClientBridgeSyncHelper : public ThreadableLoaderClient {
+    WTF_MAKE_FAST_ALLOCATED(WorkerLoaderClientBridgeSyncHelper);
 public:
     static PassOwnPtr<WorkerLoaderClientBridgeSyncHelper> create(ThreadableLoaderClientWrapper*, PassOwnPtr<WebWaitableEvent>);
     virtual ~WorkerLoaderClientBridgeSyncHelper();