Oilpan: Enable oilpan for callback classes

Source/modules/serviceworkers/Headers.h

Index: Source/modules/serviceworkers/Headers.h
diff --git a/Source/modules/serviceworkers/Headers.h b/Source/modules/serviceworkers/Headers.h
index 7234dc82309d613f5c40b0915a31538f28b04341..48f0632989c73c23a4d0d4a4c1ba0030d26b4ca2 100644
--- a/Source/modules/serviceworkers/Headers.h
+++ b/Source/modules/serviceworkers/Headers.h
@@ -41,8 +41,8 @@ public:
     bool has(const String& key, ExceptionState&);
     void set(const String& key, const String& value, ExceptionState&);
     unsigned long size() const;
-    void forEach(PassOwnPtrWillBeRawPtr<HeadersForEachCallback>, const ScriptValue&);
-    void forEach(PassOwnPtrWillBeRawPtr<HeadersForEachCallback>);
+    void forEach(HeadersForEachCallback*, const ScriptValue&);
+    void forEach(HeadersForEachCallback*);
 
     void setGuard(Guard guard) { m_guard = guard; }
     Guard guard() const { return m_guard; }
@@ -57,7 +57,7 @@ private:
     Headers();
     // Shares the FetchHeaderList. Called when creating a Request or Response.
     explicit Headers(FetchHeaderList*);
-    void forEachInternal(PassOwnPtrWillBeRawPtr<HeadersForEachCallback>, const ScriptValue*);
+    void forEachInternal(HeadersForEachCallback*, const ScriptValue*);
 
     Member<FetchHeaderList> m_headerList;
     Guard m_guard;