cc: Convert processScrollDeltas() to scoped_ptr<>.

cc/CCLayerTreeHostImpl.cpp

 // Copyright 2011 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 "CCLayerTreeHostImpl.h"
 
 #include "base/basictypes.h"
 #include "CCAppendQuadsData.h"
@@ skipping 1280 matching lines @@
         scroll.layerId = layerImpl->id();
         scroll.scrollDelta = scrollDelta;
         scrollInfo->scrolls.append(scroll);
         layerImpl->setSentScrollDelta(scrollDelta);
     }
 
     for (size_t i = 0; i < layerImpl->children().size(); ++i)
         collectScrollDeltas(scrollInfo, layerImpl->children()[i]);
 }
 
-PassOwnPtr<CCScrollAndScaleSet> CCLayerTreeHostImpl::processScrollDeltas()
+scoped_ptr<CCScrollAndScaleSet> CCLayerTreeHostImpl::processScrollDeltas()
 {
-    OwnPtr<CCScrollAndScaleSet> scrollInfo = adoptPtr(new CCScrollAndScaleSet());
+    scoped_ptr<CCScrollAndScaleSet> scrollInfo(new CCScrollAndScaleSet());
 
     if (m_pinchGestureActive || m_pageScaleAnimation) {
         scrollInfo->pageScaleDelta = 1;
         m_pinchZoomViewport.setSentPageScaleDelta(1);
         // FIXME(aelias): Make these painting optimizations compatible with
         // compositor-side scaling.
         if (!CCSettings::pageScalePinchZoomEnabled()) {
             if (m_pinchGestureActive)
                 computePinchZoomDeltas(scrollInfo.get());
             else if (m_pageScaleAnimation.get())
                 computeDoubleTapZoomDeltas(scrollInfo.get());
         }
-        return scrollInfo.release();
+        return scrollInfo.Pass();
     }
 
     collectScrollDeltas(scrollInfo.get(), m_rootLayerImpl.get());
     scrollInfo->pageScaleDelta = m_pinchZoomViewport.pageScaleDelta();
     m_pinchZoomViewport.setSentPageScaleDelta(scrollInfo->pageScaleDelta);
 
-    return scrollInfo.release();
+    return scrollInfo.Pass();
 }
 
 WebTransformationMatrix CCLayerTreeHostImpl::implTransform() const
 {
     return m_pinchZoomViewport.implTransform();
 }
 
 void CCLayerTreeHostImpl::setFullRootLayerDamage()
 {
     if (m_rootLayerImpl) {
@@ skipping 119 matching lines @@
 
     CCScrollbarAnimationController* scrollbarController = layer->scrollbarAnimationController();
     if (scrollbarController && scrollbarController->animate(monotonicTime))
         m_client->setNeedsRedrawOnImplThread();
 
     for (size_t i = 0; i < layer->children().size(); ++i)
         animateScrollbarsRecursive(layer->children()[i], monotonicTime);
 }
 
 }  // namespace cc