Reduce SuspendableObjects

third_party/WebKit/Source/core/dom/MessagePort.cpp

 /*
  * Copyright (C) 2008 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 28 matching lines @@
 #include "core/workers/WorkerGlobalScope.h"
 #include "public/platform/WebString.h"
 #include "wtf/Functional.h"
 #include "wtf/PtrUtil.h"
 #include "wtf/text/AtomicString.h"
 #include <memory>
 
 namespace blink {
 
 MessagePort* MessagePort::create(ExecutionContext& executionContext) {
-  MessagePort* port = new MessagePort(executionContext);
-  port->suspendIfNeeded();
-  return port;
+  return new MessagePort(executionContext);
 }
 
 MessagePort::MessagePort(ExecutionContext& executionContext)
-    : SuspendableObject(&executionContext), m_started(false), m_closed(false) {}
+    : ContextLifecycleObserver(&executionContext),
+      m_started(false),
+      m_closed(false) {}
 
 MessagePort::~MessagePort() {
   DCHECK(!m_started || !isEntangled());
 }
 
 void MessagePort::postMessage(ExecutionContext* context,
                               PassRefPtr<SerializedScriptValue> message,
                               const MessagePortArray& ports,
                               ExceptionState& exceptionState) {
   if (!isEntangled())
@@ skipping 218 matching lines @@
   MessagePortArray* portArray = new MessagePortArray(channels->size());
   for (unsigned i = 0; i < channels->size(); ++i) {
     MessagePort* port = MessagePort::create(context);
     port->entangle(std::move((*channels)[i]));
     (*portArray)[i] = port;
   }
   return portArray;
 }
 
 DEFINE_TRACE(MessagePort) {
-  SuspendableObject::trace(visitor);
+  ContextLifecycleObserver::trace(visitor);
   EventTargetWithInlineData::trace(visitor);
 }
 
 }  // namespace blink