InlinedVisitor: Migrate encryptedmedia to use inlined tracing

Source/modules/encryptedmedia/ContentDecryptionModuleResultPromise.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 ContentDecryptionModuleResultPromise_h
 #define ContentDecryptionModuleResultPromise_h
 
 #include "bindings/core/v8/ScriptPromiseResolver.h"
 #include "core/dom/ExceptionCode.h"
 #include "platform/ContentDecryptionModuleResult.h"
@@ skipping 13 matching lines @@
 
     // ContentDecryptionModuleResult implementation.
     virtual void complete() override;
     virtual void completeWithContentDecryptionModule(WebContentDecryptionModule*) override;
     virtual void completeWithSession(WebContentDecryptionModuleResult::SessionStatus) override;
     virtual void completeWithError(WebContentDecryptionModuleException, unsigned long systemCode, const WebString&) final;
 
     // It is only valid to call this before completion.
     ScriptPromise promise();
 
-    virtual void trace(Visitor*);
+    DECLARE_VIRTUAL_TRACE();
 
 protected:
     explicit ContentDecryptionModuleResultPromise(ScriptState*);
 
     // Resolves the promise with |value|. Used by subclasses to resolve the
     // promise.
     template <typename... T>
     void resolve(T... value)
     {
         m_resolver->resolve(value...);
         m_resolver.clear();
     }
 
     // Rejects the promise with a DOMException.
     void reject(ExceptionCode, const String& errorMessage);
 
     ExecutionContext* executionContext() const;
 
 private:
     RefPtrWillBeMember<ScriptPromiseResolver> m_resolver;
 };
 
 } // namespace blink
 
 #endif // ContentDecryptionModuleResultPromise_h