InlinedVisitor: Migrate encryptedmedia to use inlined tracing

Source/modules/encryptedmedia/ContentDecryptionModuleResultPromise.cpp

 // 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.
 
 #include "config.h"
 #include "modules/encryptedmedia/ContentDecryptionModuleResultPromise.h"
 
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptState.h"
 #include "core/dom/DOMException.h"
@@ skipping 71 matching lines @@
 {
     m_resolver->reject(DOMException::create(code, errorMessage));
     m_resolver.clear();
 }
 
 ExecutionContext* ContentDecryptionModuleResultPromise::executionContext() const
 {
     return m_resolver->executionContext();
 }
 
-void ContentDecryptionModuleResultPromise::trace(Visitor* visitor)
+DEFINE_TRACE(ContentDecryptionModuleResultPromise)
 {
     visitor->trace(m_resolver);
     ContentDecryptionModuleResult::trace(visitor);
 }
 
 } // namespace blink