Convert ppapi/shared to use TrackedCallback.

ppapi/shared_impl/private/udp_socket_private_impl.h

 // Copyright (c) 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.
 
 #ifndef PPAPI_SHARED_IMPL_PRIVATE_UDP_SOCKET_PRIVATE_IMPL_H_
 #define PPAPI_SHARED_IMPL_PRIVATE_UDP_SOCKET_PRIVATE_IMPL_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "ppapi/shared_impl/resource.h"
+#include "ppapi/shared_impl/tracked_callback.h"
 #include "ppapi/thunk/ppb_udp_socket_private_api.h"
 
 namespace ppapi {
 
 // This class provides the shared implementation of a
 // PPB_UDPSocket_Private.  The functions that actually send messages
 // to browser are implemented differently for the proxied and
 // non-proxied derived classes.
 class PPAPI_SHARED_EXPORT UDPSocketPrivateImpl
     : public thunk::PPB_UDPSocket_Private_API,
@@ skipping 39 matching lines @@
   // Send functions that need to be implemented differently for
   // the proxied and non-proxied derived classes.
   virtual void SendBind(const PP_NetAddress_Private& addr) = 0;
   virtual void SendRecvFrom(int32_t num_bytes) = 0;
   virtual void SendSendTo(const std::string& buffer,
                           const PP_NetAddress_Private& addr) = 0;
   virtual void SendClose() = 0;
 
  protected:
   void Init(uint32 socket_id);
-  void PostAbortAndClearIfNecessary(PP_CompletionCallback* callback);
+  void PostAbortIfNecessary(scoped_refptr<TrackedCallback>* callback);
 
   uint32 socket_id_;
 
   bool bound_;
   bool closed_;
 
-  PP_CompletionCallback bind_callback_;
-  PP_CompletionCallback recvfrom_callback_;
-  PP_CompletionCallback sendto_callback_;
+  scoped_refptr<TrackedCallback> bind_callback_;
+  scoped_refptr<TrackedCallback> recvfrom_callback_;
+  scoped_refptr<TrackedCallback> sendto_callback_;
 
   char* read_buffer_;
   int32_t bytes_to_read_;
 
   PP_NetAddress_Private recvfrom_addr_;
 
   DISALLOW_COPY_AND_ASSIGN(UDPSocketPrivateImpl);
 };
 
 }  // namespace ppapi
 
 #endif  // PPAPI_SHARED_IMPL_PRIVATE_UDP_SOCKET_PRIVATE_IMPL_H_