Oilpan: Replace most of RefPtrs for Event objects with oilpan's transition types

Source/core/editing/ReplaceSelectionCommand.cpp

 /*
  * Copyright (C) 2005, 2006, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2009, 2010, 2011 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
@@ skipping 155 matching lines @@
     }
 
     RefPtr<Range> range = VisibleSelection::selectionFromContentsOfNode(holder.get()).toNormalizedRange();
     String text = plainText(range.get(), static_cast<TextIteratorBehavior>(TextIteratorEmitsOriginalText | TextIteratorIgnoresStyleVisibility));
 
     removeInterchangeNodes(holder.get());
     removeUnrenderedNodes(holder.get());
     restoreAndRemoveTestRenderingNodesToFragment(holder.get());
 
     // Give the root a chance to change the text.
-    RefPtr<BeforeTextInsertedEvent> evt = BeforeTextInsertedEvent::create(text);
+    RefPtrWillBeRawPtr<BeforeTextInsertedEvent> evt = BeforeTextInsertedEvent::create(text);
     editableRoot->dispatchEvent(evt, ASSERT_NO_EXCEPTION);
     if (text != evt->text() || !editableRoot->rendererIsRichlyEditable()) {
         restoreAndRemoveTestRenderingNodesToFragment(holder.get());
 
         m_fragment = createFragmentFromText(selection.toNormalizedRange().get(), evt->text());
         if (!m_fragment->firstChild())
             return;
 
         holder = insertFragmentForTestRendering(editableRoot.get());
         removeInterchangeNodes(holder.get());
@@ skipping 1307 matching lines @@
         removeNodeAndPruneAncestors(nodeAfterInsertionPos.get());
 
     VisibleSelection selectionAfterReplace(m_selectReplacement ? start : end, end);
 
     setEndingSelection(selectionAfterReplace);
 
     return true;
 }
 
 } // namespace WebCore