[cc] Store CCLayerImpls as scoped_ptrs

cc/CCLayerTreeHostCommon.h

Index: cc/CCLayerTreeHostCommon.h
diff --git a/cc/CCLayerTreeHostCommon.h b/cc/CCLayerTreeHostCommon.h
index cf80a0cc9aae1a5ece4f16856ba6845f35dc23e1..d22c8f07db5f6bcfcbecd75ca4d9142e8195f060 100644
--- a/cc/CCLayerTreeHostCommon.h
+++ b/cc/CCLayerTreeHostCommon.h
@@ -6,7 +6,7 @@
 #define CCLayerTreeHostCommon_h
 
 #include "base/memory/ref_counted.h"
-#include "cc/own_ptr_vector.h"
+#include "cc/scoped_ptr_vector.h"
 #include "IntRect.h"
 #include "IntSize.h"
 #include <public/WebTransformationMatrix.h>
@@ -39,7 +39,7 @@ public:
         return children[index].get();
     }
 
-    static CCLayerImpl* getChildAsRawPtr(const OwnPtrVector<CCLayerImpl>& children, size_t index)
+    static CCLayerImpl* getChildAsRawPtr(const ScopedPtrVector<CCLayerImpl>& children, size_t index)
     {
         return children[index];
     }