InlinedVisitor: Migrate encryptedmedia to use inlined tracing

Source/modules/encryptedmedia/MediaKeys.cpp

 /*
  * Copyright (C) 2013 Apple 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 46 matching lines @@
     {
         ASSERT(result);
         ASSERT(serverCertificate);
         return new PendingAction(result, serverCertificate);
     }
 
     ~PendingAction()
     {
     }
 
-    void trace(Visitor* visitor)
+    DEFINE_INLINE_TRACE()
     {
         visitor->trace(m_result);
     }
 
 private:
     PendingAction(ContentDecryptionModuleResult* result, PassRefPtr<DOMArrayBuffer> data)
         : m_result(result)
         , m_data(data)
     {
     }
@@ skipping 111 matching lines @@
         // 5.4 Resolve promise.
         // (These are handled by Chromium and the CDM.)
     }
 }
 
 WebContentDecryptionModule* MediaKeys::contentDecryptionModule()
 {
     return m_cdm.get();
 }
 
-void MediaKeys::trace(Visitor* visitor)
+DEFINE_TRACE(MediaKeys)
 {
     visitor->trace(m_pendingActions);
     ContextLifecycleObserver::trace(visitor);
 }
 
 void MediaKeys::contextDestroyed()
 {
     ContextLifecycleObserver::contextDestroyed();
 
     // We don't need the CDM anymore.
     m_cdm.clear();
 }
 
 } // namespace blink