Oilpan: have Navigator and its supplements be on the heap by default.

Source/modules/battery/NavigatorBattery.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NavigatorBattery_h
 #define NavigatorBattery_h
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "core/frame/Navigator.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class BatteryManager;
 class Navigator;
 
-class NavigatorBattery final : public NoBaseWillBeGarbageCollectedFinalized<NavigatorBattery>, public WillBeHeapSupplement<Navigator> {
-    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NavigatorBattery);
+class NavigatorBattery final : public GarbageCollected<NavigatorBattery>, public HeapSupplement<Navigator> {
+    USING_GARBAGE_COLLECTED_MIXIN(NavigatorBattery);
 public:
-    virtual ~NavigatorBattery();
-
     static NavigatorBattery& from(Navigator&);
 
     static ScriptPromise getBattery(ScriptState*, Navigator&);
     ScriptPromise getBattery(ScriptState*);
 
     DECLARE_TRACE();
 
 private:
     NavigatorBattery();
     static const char* supplementName();
 
-    PersistentWillBeMember<BatteryManager> m_batteryManager;
+    Member<BatteryManager> m_batteryManager;
 };
 
 } // namespace blink
 
 #endif // NavigatorBattery_h