Update installer to use the new version of LaunchProcess.

chrome/installer/setup/setup_util.cc

 // 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.
 //
 // This file declares util functions for setup project.
 
 #include "chrome/installer/setup/setup_util.h"
 
 #include <windows.h>
 
@@ skipping 52 matching lines @@
   // Copy over all arguments.
   CommandLine::StringVector args(command_line.GetArgs());
   for (CommandLine::StringVector::const_iterator i = args.begin();
        i != args.end(); ++i) {
     new_cl.AppendArgNative(*i);
   }
 
   // Launch the process and wait for it to exit.
   VLOG(1) << "Launching existing installer with command: "
           << new_cl.GetCommandLineString();
-  base::ProcessHandle handle = INVALID_HANDLE_VALUE;
-  if (!base::LaunchProcess(new_cl, base::LaunchOptions(), &handle)) {
+  base::Process process = base::LaunchProcess(new_cl, base::LaunchOptions());
+  if (!process.IsValid()) {
     PLOG(ERROR) << "Failed to launch existing installer with command: "
                 << new_cl.GetCommandLineString();
     return false;
   }
-  if (!base::WaitForExitCode(handle, exit_code)) {
+  if (!process.WaitForExit(exit_code)) {
     PLOG(DFATAL) << "Failed to get exit code from existing installer";
     *exit_code = WAIT_FOR_EXISTING_FAILED;
   } else {
     VLOG(1) << "Existing installer returned exit code " << *exit_code;
   }
   return true;
 }
 
 // Returns true if product |type| cam be meaningfully installed without the
 // --multi-install flag.
@@ skipping 400 matching lines @@
 }
 
 ScopedTokenPrivilege::~ScopedTokenPrivilege() {
   if (is_enabled_ && previous_privileges_.PrivilegeCount != 0) {
     ::AdjustTokenPrivileges(token_.Get(), FALSE, &previous_privileges_,
                             sizeof(TOKEN_PRIVILEGES), NULL, NULL);
   }
 }
 
 }  // namespace installer