Oilpan: Build fix after r170389

Source/core/events/ApplicationCacheErrorEvent.h

Index: Source/core/events/ApplicationCacheErrorEvent.h
diff --git a/Source/core/events/ApplicationCacheErrorEvent.h b/Source/core/events/ApplicationCacheErrorEvent.h
index bc947d5c7d20e0e1ba4d90b9c3a8aba31dc38ce6..a810d67b1097ac6775db02139e77111ea7fe80df 100644
--- a/Source/core/events/ApplicationCacheErrorEvent.h
+++ b/Source/core/events/ApplicationCacheErrorEvent.h
@@ -27,19 +27,19 @@ class ApplicationCacheErrorEvent FINAL : public Event {
 public:
     virtual ~ApplicationCacheErrorEvent();
 
-    static PassRefPtr<ApplicationCacheErrorEvent> create()
+    static PassRefPtrWillBeRawPtr<ApplicationCacheErrorEvent> create()
     {
-        return adoptRef(new ApplicationCacheErrorEvent);
+        return adoptRefWillBeRefCountedGarbageCollected(new ApplicationCacheErrorEvent);
     }
 
-    static PassRefPtr<ApplicationCacheErrorEvent> create(blink::WebApplicationCacheHost::ErrorReason reason, const String& url, int status, const String& message)
+    static PassRefPtrWillBeRawPtr<ApplicationCacheErrorEvent> create(blink::WebApplicationCacheHost::ErrorReason reason, const String& url, int status, const String& message)
     {
-        return adoptRef(new ApplicationCacheErrorEvent(reason, url, status, message));
+        return adoptRefWillBeRefCountedGarbageCollected(new ApplicationCacheErrorEvent(reason, url, status, message));
     }
 
-    static PassRefPtr<ApplicationCacheErrorEvent> create(const AtomicString& eventType, const ApplicationCacheErrorEventInit& initializer)
+    static PassRefPtrWillBeRawPtr<ApplicationCacheErrorEvent> create(const AtomicString& eventType, const ApplicationCacheErrorEventInit& initializer)
     {
-        return adoptRef(new ApplicationCacheErrorEvent(eventType, initializer));
+        return adoptRefWillBeRefCountedGarbageCollected(new ApplicationCacheErrorEvent(eventType, initializer));
     }
 
     const String& reason() const { return m_reason; }
@@ -49,6 +49,8 @@ public:
 
     virtual const AtomicString& interfaceName() const OVERRIDE { return EventNames::ApplicationCacheErrorEvent; }
 
+    virtual void trace(Visitor*) OVERRIDE;
+
 private:
     ApplicationCacheErrorEvent();
     ApplicationCacheErrorEvent(blink::WebApplicationCacheHost::ErrorReason, const String& url, int status, const String& message);