[cc] Store CCLayerImpls as scoped_ptrs

cc/CCRendererGLTest.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 "CCRendererGL.h"
 
 #include "CCDrawQuad.h"
 #include "CCPrioritizedTextureManager.h"
 #include "CCResourceProvider.h"
@@ skipping 71 matching lines @@
 
     CCRenderPass* rootRenderPass() { return m_renderPassesInDrawOrder.back(); }
     const CCRenderPassList& renderPassesInDrawOrder() const { return m_renderPassesInDrawOrder; }
     const CCRenderPassIdHashMap& renderPasses() const { return m_renderPasses; }
 
     size_t memoryAllocationLimitBytes() const { return m_memoryAllocationLimitBytes; }
 
 private:
     int m_setFullRootLayerDamageCount;
     DebugScopedSetImplThread m_implThread;
-    OwnPtr<CCLayerImpl> m_rootLayer;
+    scoped_ptr<CCLayerImpl> m_rootLayer;
     CCRenderPassList m_renderPassesInDrawOrder;
     CCRenderPassIdHashMap m_renderPasses;
     size_t m_memoryAllocationLimitBytes;
 };
 
 class FakeCCRendererGL : public CCRendererGL {
 public:
     FakeCCRendererGL(CCRendererClient* client, CCResourceProvider* resourceProvider) : CCRendererGL(client, resourceProvider) { }
 
     // CCRendererGL methods.
@@ skipping 316 matching lines @@
     FakeCCRendererGL renderer(&mockClient, resourceProvider.get());
 
     mockClient.rootRenderPass()->setHasTransparentBackground(true);
 
     EXPECT_TRUE(renderer.initialize());
 
     renderer.drawFrame(mockClient.renderPassesInDrawOrder(), mockClient.renderPasses());
 
     EXPECT_EQ(1, context->clearCount());
 }