Fix IWYU violators that don't include scoped_ptr.h in CrOS build.

chromeos/process_proxy/process_proxy.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 CHROMEOS_PROCESS_PROXY_PROCESS_PROXY_H_
 #define CHROMEOS_PROCESS_PROXY_PROCESS_PROXY_H_
 
 #include <fcntl.h>
 #include <signal.h>
 
 #include <cstdio>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "base/memory/scoped_ptr.h"
 #include "chromeos/process_proxy/process_output_watcher.h"
 
 namespace base {
 class Process;
 class SingleThreadTaskRunner;
 class TaskRunner;
 }  // namespace base
 
 namespace chromeos {
 class ProcessOutputWatcher;
@@ skipping 84 matching lines @@
   scoped_ptr<base::Process> process_;
 
   int pt_pair_[2];
 
   DISALLOW_COPY_AND_ASSIGN(ProcessProxy);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_PROCESS_PROXY_PROCESS_PROXY_H_