WTF::OwnPtr should behave similarly with the rest of WTF smart pointers

Source/web/PageOverlay.cpp

 /*
  * Copyright (C) 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.
  *
@@ skipping 48 matching lines @@
 PageOverlay::PageOverlay(WebViewImpl* viewImpl, WebPageOverlay* overlay)
     : m_viewImpl(viewImpl)
     , m_overlay(overlay)
     , m_layerClient(0)
     , m_zOrder(0)
 {
 }
 
 class OverlayGraphicsLayerClientImpl : public WebCore::GraphicsLayerClient {
 public:
-    static PassOwnPtr<OverlayGraphicsLayerClientImpl*> create(WebPageOverlay* overlay)
+    static PassOwnPtr<OverlayGraphicsLayerClientImpl> create(WebPageOverlay* overlay)
     {
         return adoptPtr(new OverlayGraphicsLayerClientImpl(overlay));
     }
 
     virtual ~OverlayGraphicsLayerClientImpl() { }
 
     PassOwnPtr<GraphicsLayer> createGraphicsLayer(GraphicsLayerFactory* factory)
     {
         m_layer = GraphicsLayer::create(factory, this);
         return m_layer.release();
@@ skipping 94 matching lines @@
         // this is not on a critical codepath? In order to do so, we'd
         // have to take scrolling into account.
         const WebSize& size = m_viewImpl->size();
         WebRect damagedRect(0, 0, size.width, size.height);
         if (m_viewImpl->client())
             m_viewImpl->client()->didInvalidateRect(damagedRect);
     }
 }
 
 } // namespace WebKit