[cc] Store CCLayerImpls as scoped_ptrs

cc/CCScrollbarLayerImpl.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"
 
 #if USE(ACCELERATED_COMPOSITING)
 
 #include "CCScrollbarLayerImpl.h"
 
 #include "CCQuadSink.h"
 #include "CCScrollbarAnimationController.h"
 #include "CCTextureDrawQuad.h"
 
 using WebKit::WebRect;
 using WebKit::WebScrollbar;
 
 namespace cc {
 
-PassOwnPtr<CCScrollbarLayerImpl> CCScrollbarLayerImpl::create(int id)
+scoped_ptr<CCScrollbarLayerImpl> CCScrollbarLayerImpl::create(int id)
 {
-    return adoptPtr(new CCScrollbarLayerImpl(id));
+    return make_scoped_ptr(new CCScrollbarLayerImpl(id));
 }
 
 CCScrollbarLayerImpl::CCScrollbarLayerImpl(int id)
     : CCLayerImpl(id)
     , m_scrollbar(this)
     , m_backTrackResourceId(0)
     , m_foreTrackResourceId(0)
     , m_thumbResourceId(0)
     , m_scrollbarOverlayStyle(WebScrollbar::ScrollbarOverlayStyleDefault)
     , m_orientation(WebScrollbar::Horizontal)
@@ skipping 164 matching lines @@
 }
 
 const char* CCScrollbarLayerImpl::layerTypeAsString() const
 {
     return "ScrollbarLayer";
 }
 
 }
 
 #endif // USE(ACCELERATED_COMPOSITING)