InlinedVisitor: Migrate encryptedmedia to use inlined tracing

Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.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/HTMLMediaElementEncryptedMedia.h"
 
 #include "bindings/core/v8/ExceptionState.h"
 #include "bindings/core/v8/ScriptPromise.h"
 #include "bindings/core/v8/ScriptPromiseResolver.h"
@@ skipping 36 matching lines @@
 }
 
 // This class allows MediaKeys to be set asynchronously.
 class SetMediaKeysHandler : public ScriptPromiseResolver {
     WTF_MAKE_NONCOPYABLE(SetMediaKeysHandler);
 
 public:
     static ScriptPromise create(ScriptState*, HTMLMediaElement&, MediaKeys*);
     virtual ~SetMediaKeysHandler();
 
-    virtual void trace(Visitor*) override;
+    DECLARE_VIRTUAL_TRACE();
 
 private:
     SetMediaKeysHandler(ScriptState*, HTMLMediaElement&, MediaKeys*);
     void timerFired(Timer<SetMediaKeysHandler>*);
 
     void clearExistingMediaKeys();
     void setNewMediaKeys();
     void finish();
 
     void reportSetFailed(ExceptionCode, const String& errorMessage);
@@ skipping 164 matching lines @@
 
     // 3.3.2 If the preceding step failed, run the following steps:
     // 3.3.2.1 Set the mediaKeys attribute to null.
     thisElement.m_mediaKeys.clear();
 
     // 3.3.2.2 Reject promise with a new DOMException whose name is the
     //         appropriate error name and that has an appropriate message.
     reject(DOMException::create(code, errorMessage));
 }
 
-void SetMediaKeysHandler::trace(Visitor* visitor)
+DEFINE_TRACE(SetMediaKeysHandler)
 {
     visitor->trace(m_element);
     visitor->trace(m_newMediaKeys);
     ScriptPromiseResolver::trace(visitor);
 }
 
 HTMLMediaElementEncryptedMedia::HTMLMediaElementEncryptedMedia()
     : m_emeMode(EmeModeNotSelected)
     , m_isWaitingForKey(false)
 {
@@ skipping 337 matching lines @@
     ASSERT(thisElement.m_emeMode == EmeModeUnprefixed);
     thisElement.m_mediaKeys.clear();
 }
 
 WebContentDecryptionModule* HTMLMediaElementEncryptedMedia::contentDecryptionModule(HTMLMediaElement& element)
 {
     HTMLMediaElementEncryptedMedia& thisElement = HTMLMediaElementEncryptedMedia::from(element);
     return thisElement.contentDecryptionModule();
 }
 
-void HTMLMediaElementEncryptedMedia::trace(Visitor* visitor)
+DEFINE_TRACE(HTMLMediaElementEncryptedMedia)
 {
     visitor->trace(m_mediaKeys);
     WillBeHeapSupplement<HTMLMediaElement>::trace(visitor);
 }
 
 } // namespace blink