Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/core/page/EventSource.cpp

 /*
  * Copyright (C) 2009, 2012 Ericsson AB. All rights reserved.
  * Copyright (C) 2010 Apple Inc. All rights reserved.
  * Copyright (C) 2011, Code Aurora Forum. 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
@@ skipping 425 matching lines @@
     //
     // Worth doing regardless, it is no longer of use.
     m_loader = nullptr;
 }
 
 bool EventSource::hasPendingActivity() const
 {
     return m_state != CLOSED;
 }
 
-PassRefPtrWillBeRawPtr<MessageEvent> EventSource::createMessageEvent()
+RawPtr<MessageEvent> EventSource::createMessageEvent()
 {
-    RefPtrWillBeRawPtr<MessageEvent> event = MessageEvent::create();
+    RawPtr<MessageEvent> event = MessageEvent::create();
     event->initMessageEvent(m_eventName.isEmpty() ? EventTypeNames::message : m_eventName, false, false, SerializedScriptValueFactory::instance().create(String(m_data)), m_eventStreamOrigin, m_lastEventId, 0, nullptr);
     m_data.clear();
     return event.release();
 }
 
 DEFINE_TRACE(EventSource)
 {
     RefCountedGarbageCollectedEventTargetWithInlineData::trace(visitor);
     ActiveDOMObject::trace(visitor);
 }
 
 } // namespace blink