Use nullptr_t for RefPtr, PassRefPtr and RawPtr.

Source/web/tests/WebFrameTest.cpp

 /*
  * Copyright (C) 2010 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 4616 matching lines @@
     registerMockedHttpURLLoad("fragment_middle_click.html");
     TestNavigationPolicyWebFrameClient client;
     FrameTestHelpers::WebViewHelper webViewHelper;
     webViewHelper.initializeAndLoad(m_baseURL + "fragment_middle_click.html", true, &client);
 
     WebCore::Document* document = webViewHelper.webViewImpl()->page()->mainFrame()->document();
     WebCore::KURL destination = document->url();
     destination.setFragmentIdentifier("test");
 
     RefPtr<WebCore::Event> event = WebCore::MouseEvent::create(WebCore::EventTypeNames::click, false, false,
-        document->domWindow(), 0, 0, 0, 0, 0, 0, 0, false, false, false, false, 1, 0, 0);
+        document->domWindow(), 0, 0, 0, 0, 0, 0, 0, false, false, false, false, 1, nullptr, nullptr);
     WebCore::FrameLoadRequest frameRequest(document, WebCore::ResourceRequest(destination));
     frameRequest.setTriggeringEvent(event);
     webViewHelper.webViewImpl()->page()->mainFrame()->loader().load(frameRequest);
 }
 
 TEST_F(WebFrameTest, BackToReload)
 {
     registerMockedHttpURLLoad("fragment_middle_click.html");
     FrameTestHelpers::WebViewHelper webViewHelper;
     webViewHelper.initializeAndLoad(m_baseURL + "fragment_middle_click.html", true);
@@ skipping 514 matching lines @@
     webViewHelper.initializeAndLoad("about:blank");
 
     WebCore::FrameView* frameView = webViewHelper.webViewImpl()->mainFrameImpl()->frameView();
     frameView->setFrameRect(WebCore::IntRect(0, 0, 200, 200));
     EXPECT_EQ_RECT(WebCore::IntRect(0, 0, 200, 200), frameView->frameRect());
     frameView->setFrameRect(WebCore::IntRect(100, 100, 200, 200));
     EXPECT_EQ_RECT(WebCore::IntRect(100, 100, 200, 200), frameView->frameRect());
 }
 
 } // namespace