Oilpan: Remove most WillBe types from the code base

third_party/WebKit/Source/web/ExternalDateTimeChooser.cpp

 /*
  * Copyright (C) 2012 Google 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 44 matching lines @@
         m_chooser->didChooseValue(value);
         delete this;
     }
 
     void didCancelChooser() override
     {
         m_chooser->didCancelChooser();
         delete this;
     }
 
-    RefPtrWillBePersistent<ExternalDateTimeChooser> m_chooser;
+    Persistent<ExternalDateTimeChooser> m_chooser;
 };
 
 ExternalDateTimeChooser::~ExternalDateTimeChooser()
 {
 }
 
 DEFINE_TRACE(ExternalDateTimeChooser)
 {
     visitor->trace(m_client);
     DateTimeChooser::trace(visitor);
 }
 
 ExternalDateTimeChooser::ExternalDateTimeChooser(DateTimeChooserClient* client)
     : m_client(client)
 {
     ASSERT(client);
 }
 
-PassRefPtrWillBeRawPtr<ExternalDateTimeChooser> ExternalDateTimeChooser::create(ChromeClientImpl* chromeClient, WebViewClient* webViewClient, DateTimeChooserClient* client, const DateTimeChooserParameters& parameters)
+RawPtr<ExternalDateTimeChooser> ExternalDateTimeChooser::create(ChromeClientImpl* chromeClient, WebViewClient* webViewClient, DateTimeChooserClient* client, const DateTimeChooserParameters& parameters)
 {
     ASSERT(chromeClient);
-    RefPtrWillBeRawPtr<ExternalDateTimeChooser> chooser = adoptRefWillBeNoop(new ExternalDateTimeChooser(client));
+    RawPtr<ExternalDateTimeChooser> chooser = new ExternalDateTimeChooser(client);
     if (!chooser->openDateTimeChooser(chromeClient, webViewClient, parameters))
         chooser.clear();
     return chooser.release();
 }
 
 
 static WebDateTimeInputType toWebDateTimeInputType(const AtomicString& source)
 {
     if (source == InputTypeNames::date)
         return WebDateTimeInputTypeDate;
@@ skipping 74 matching lines @@
 }
 
 AXObject* ExternalDateTimeChooser::rootAXObject()
 {
     return nullptr;
 }
 
 } // namespace blink
 
 #endif