Convert //tools to use std::unique_ptr

tools/gn/exec_process.cc

 // Copyright 2014 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 "tools/gn/exec_process.h"
 
 #include <stddef.h>
 
+#include <memory>
+
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/process/kill.h"
 #include "base/process/launch.h"
 #include "base/process/process.h"
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
 
 #include "base/win/scoped_handle.h"
 #include "base/win/scoped_process_information.h"
@@ skipping 127 matching lines @@
                  std::string* std_out,
                  std::string* std_err,
                  int* exit_code) {
   *exit_code = EXIT_FAILURE;
 
   std::vector<std::string> argv = cmdline.argv();
 
   int out_fd[2], err_fd[2];
   pid_t pid;
   base::InjectiveMultimap fd_shuffle1, fd_shuffle2;
-  scoped_ptr<char*[]> argv_cstr(new char*[argv.size() + 1]);
+  std::unique_ptr<char* []> argv_cstr(new char*[argv.size() + 1]);
 
   fd_shuffle1.reserve(3);
   fd_shuffle2.reserve(3);
 
   if (pipe(out_fd) < 0)
     return false;
   base::ScopedFD out_read(out_fd[0]), out_write(out_fd[1]);
 
   if (pipe(err_fd) < 0)
     return false;
@@ skipping 79 matching lines @@
         return process.WaitForExit(exit_code);
       }
   }
 
   return false;
 }
 #endif
 
 }  // namespace internal