Oilpan: move BatteryStatus to the heap.

Source/modules/battery/BatteryStatus.h

Index: Source/modules/battery/BatteryStatus.h
diff --git a/Source/modules/battery/BatteryStatus.h b/Source/modules/battery/BatteryStatus.h
index 5557bc97650a301ac3ded0a2302f5d9de646f18e..fdccb98f3a4b2887e86950bc2da8a0c2fb2b3cee 100644
--- a/Source/modules/battery/BatteryStatus.h
+++ b/Source/modules/battery/BatteryStatus.h
@@ -5,21 +5,24 @@
 #ifndef BatteryStatus_h
 #define BatteryStatus_h
 
+#include "platform/heap/Handle.h"
 #include "wtf/PassRefPtr.h"
 #include "wtf/RefCounted.h"
 
 namespace WebCore {
 
-class BatteryStatus : public RefCounted<BatteryStatus> {
+class BatteryStatus FINAL : public RefCountedWillBeGarbageCollected<BatteryStatus> {
 public:
-    static PassRefPtr<BatteryStatus> create();
-    static PassRefPtr<BatteryStatus> create(bool charging, double chargingTime, double dischargingTime, double level);
+    static PassRefPtrWillBeRawPtr<BatteryStatus> create();
+    static PassRefPtrWillBeRawPtr<BatteryStatus> create(bool charging, double chargingTime, double dischargingTime, double level);
 
     bool charging() const { return m_charging; }
     double chargingTime() const  { return m_chargingTime; }
     double dischargingTime() const  { return m_dischargingTime; }
     double level() const  { return m_level; }
 
+    void trace(Visitor*) { }
+
 private:
     BatteryStatus();
     BatteryStatus(bool charging, double chargingTime, double dischargingTime, double level);
@@ -33,4 +36,3 @@ private:
 } // namespace WebCore
 
 #endif // BatteryStatus_h
-