Enable Oilpan for core/timing/.

Source/core/timing/PerformanceUserTiming.h

 /*
  * Copyright (C) 2012 Intel Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 11 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef PerformanceUserTiming_h
 #define PerformanceUserTiming_h
 
 #include "core/timing/Performance.h"
 #include "core/timing/PerformanceTiming.h"
 #include "platform/heap/Handle.h"
-#include "wtf/HashMap.h"
-#include "wtf/PassRefPtr.h"
-#include "wtf/RefCounted.h"
-#include "wtf/text/StringHash.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class ExceptionState;
 class Performance;
 
 typedef unsigned long long (PerformanceTiming::*NavigationTimingFunction)() const;
-using PerformanceEntryMap = WillBeHeapHashMap<String, PerformanceEntryVector>;
+using PerformanceEntryMap = HeapHashMap<String, PerformanceEntryVector>;
 
-class UserTiming : public RefCountedWillBeGarbageCollected<UserTiming> {
+class UserTiming final : public GarbageCollected<UserTiming> {
 public:
-    static PassRefPtrWillBeRawPtr<UserTiming> create(Performance* performance)
+    static UserTiming* create(Performance* performance)
     {
-        return adoptRefWillBeNoop(new UserTiming(performance));
+        return new UserTiming(performance);
     }
 
     void mark(const String& markName, ExceptionState&);
     void clearMarks(const String& markName);
 
     void measure(const String& measureName, const String& startMark, const String& endMark, ExceptionState&);
     void clearMeasures(const String& measureName);
 
     PerformanceEntryVector getMarks() const;
     PerformanceEntryVector getMeasures() const;
 
     PerformanceEntryVector getMarks(const String& name) const;
     PerformanceEntryVector getMeasures(const String& name) const;
 
     DECLARE_TRACE();
 
 private:
     explicit UserTiming(Performance*);
 
     double findExistingMarkStartTime(const String& markName, ExceptionState&);
-    RawPtrWillBeMember<Performance> m_performance;
+
+    Member<Performance> m_performance;
     PerformanceEntryMap m_marksMap;
     PerformanceEntryMap m_measuresMap;
 };
 
-}
+} // namespace blink
 
 #endif // !defined(PerformanceUserTiming_h)