Switch to standard integer types in net/.

net/base/completion_callback.h

 // Copyright (c) 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.
 
 #ifndef NET_BASE_COMPLETION_CALLBACK_H__
 #define NET_BASE_COMPLETION_CALLBACK_H__
 
+#include <stdint.h>
+
 #include "base/callback.h"
 #include "base/cancelable_callback.h"
 
 namespace net {
 
 // A callback specialization that takes a single int parameter. Usually this is
 // used to report a byte count or network error code.
 typedef base::Callback<void(int)> CompletionCallback;
 
 // 64bit version of callback specialization that takes a single int64_t
 // parameter. Usually this is used to report a file offset, size or network
 // error code.
 typedef base::Callback<void(int64_t)> Int64CompletionCallback;
 
 typedef base::CancelableCallback<void(int)> CancelableCompletionCallback;
 
 }  // namespace net
 
 #endif  // NET_BASE_COMPLETION_CALLBACK_H__