Move performance module/ to oilpan

Source/modules/performance/WorkerGlobalScopePerformance.h

Index: Source/modules/performance/WorkerGlobalScopePerformance.h
diff --git a/Source/modules/performance/WorkerGlobalScopePerformance.h b/Source/modules/performance/WorkerGlobalScopePerformance.h
index 754c891b12aefd836591739642c699220320c66d..3f04674a1d81ca92c2bead5892dd01d3fa19e46a 100644
--- a/Source/modules/performance/WorkerGlobalScopePerformance.h
+++ b/Source/modules/performance/WorkerGlobalScopePerformance.h
@@ -32,6 +32,7 @@
 #define WorkerGlobalScopePerformance_h
 
 #include "core/workers/WorkerSupplementable.h"
+#include "heap/Handle.h"
 
 namespace WebCore {
 
@@ -50,7 +51,7 @@ private:
     WorkerPerformance* performance();
     static const char* supplementName();
 
-    RefPtr<WorkerPerformance> m_performance;
+    RefPtrWillBePersistent<WorkerPerformance> m_performance;
 };
 
 } // namespace WebCore