[cc] Store CCLayerImpls as scoped_ptrs

webkit/compositor_bindings/WebDelegatedRendererLayerImpl.cpp

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "WebDelegatedRendererLayerImpl.h"
 
 #include "DelegatedRendererLayerChromium.h"
+#include <wtf/PassOwnPtr.h>
 
 using namespace cc;
 
 namespace WebKit {
 
 WebDelegatedRendererLayerImpl::WebDelegatedRendererLayerImpl()
     : m_layer(adoptPtr(new WebLayerImpl(DelegatedRendererLayerChromium::create())))
 {
 }
 
 WebDelegatedRendererLayerImpl::~WebDelegatedRendererLayerImpl()
 {
 }
 
 WebLayer* WebDelegatedRendererLayerImpl::layer()
 {
     return m_layer.get();
 }
 
 } // namespace WebKit