Oilpan: eagerly sweep some mediasource and mediastream objects.

Source/modules/mediastream/MediaStream.h

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * Copyright (C) 2011 Ericsson AB. 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
@@ skipping 73 matching lines @@
 
     MediaStreamDescriptor* descriptor() const { return m_descriptor.get(); }
 
     // EventTarget
     virtual const AtomicString& interfaceName() const override;
     virtual ExecutionContext* executionContext() const override;
 
     // URLRegistrable
     virtual URLRegistry& registry() const override;
 
+    // Oilpan: need to eagerly unregister as m_descriptor client.
+    EAGERLY_FINALIZE();
     DECLARE_VIRTUAL_TRACE();
 
 private:
     MediaStream(ExecutionContext*, PassRefPtr<MediaStreamDescriptor>);
     MediaStream(ExecutionContext*, const MediaStreamTrackVector& audioTracks, const MediaStreamTrackVector& videoTracks);
 
     // ContextLifecycleObserver
     virtual void contextDestroyed() override;
 
     // MediaStreamDescriptorClient
@@ skipping 13 matching lines @@
 
     Timer<MediaStream> m_scheduledEventTimer;
     WillBeHeapVector<RefPtrWillBeMember<Event>> m_scheduledEvents;
 };
 
 typedef HeapVector<Member<MediaStream>> MediaStreamVector;
 
 } // namespace blink
 
 #endif // MediaStream_h