Oilpan: fix build after r184599.

Source/modules/encryptedmedia/NavigatorRequestMediaKeySystemAccess.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 NavigatorRequestMediaKeySystemAccess_h
 #define NavigatorRequestMediaKeySystemAccess_h
 
 #include "bindings/core/v8/Dictionary.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/V8Binding.h"
 #include "bindings/modules/v8/V8MediaKeySystemOptions.h"
 #include "core/frame/Navigator.h"
 #include "modules/encryptedmedia/MediaKeySystemOptions.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
-class NavigatorRequestMediaKeySystemAccess final : public NoBaseWillBeGarbageCollected<NavigatorRequestMediaKeySystemAccess>, public WillBeHeapSupplement<Navigator> {
+class NavigatorRequestMediaKeySystemAccess final : public NoBaseWillBeGarbageCollectedFinalized<NavigatorRequestMediaKeySystemAccess>, public WillBeHeapSupplement<Navigator> {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NavigatorRequestMediaKeySystemAccess);
 public:
     virtual ~NavigatorRequestMediaKeySystemAccess();
 
     static NavigatorRequestMediaKeySystemAccess& from(Navigator&);
 
     static ScriptPromise requestMediaKeySystemAccess(
         ScriptState*,
         Navigator&,
         const String& keySystem);
     static ScriptPromise requestMediaKeySystemAccess(
@@ skipping 22 matching lines @@
     {
         MediaKeySystemOptions impl;
         V8MediaKeySystemOptions::toImpl(isolate, value, impl, exceptionState);
         return impl;
     }
 };
 
 } // namespace blink
 
 #endif // NavigatorRequestMediaKeySystemAccess_h