Improve process launch handle sharing API.

chrome/browser/shell_integration_linux.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.
 
 #include "chrome/browser/shell_integration_linux.h"
 
 #include <fcntl.h>
 #include <stddef.h>
 
 #include <memory>
@@ skipping 54 matching lines @@
   // xdg-settings internally runs xdg-mime, which uses mv to move newly-created
   // files on top of originals after making changes to them. In the event that
   // the original files are owned by another user (e.g. root, which can happen
   // if they are updated within sudo), mv will prompt the user to confirm if
   // standard input is a terminal (otherwise it just does it). So make sure it's
   // not, to avoid locking everything up waiting for mv.
   *exit_code = EXIT_FAILURE;
   int devnull = open("/dev/null", O_RDONLY);
   if (devnull < 0)
     return false;
-  base::FileHandleMappingVector no_stdin;
-  no_stdin.push_back(std::make_pair(devnull, STDIN_FILENO));
 
   base::LaunchOptions options;
-  options.fds_to_remap = &no_stdin;
+  options.fds_to_remap.push_back(std::make_pair(devnull, STDIN_FILENO));
   base::Process process = base::LaunchProcess(argv, options);
   close(devnull);
   if (!process.IsValid())
     return false;
   return process.WaitForExit(exit_code);
 }
 
 const char kXdgSettings[] = "xdg-settings";
 const char kXdgSettingsDefaultBrowser[] = "default-web-browser";
 const char kXdgSettingsDefaultSchemeHandler[] = "default-url-scheme-handler";
@@ skipping 1011 matching lines @@
   base::FilePath applications_menu = GetDataWriteLocation(env.get());
   applications_menu = applications_menu.AppendASCII("applications");
   std::vector<base::FilePath> shortcut_filenames_app_menu =
       GetExistingProfileShortcutFilenames(profile_path, applications_menu);
   for (const auto& menu : shortcut_filenames_app_menu) {
     DeleteShortcutInApplicationsMenu(menu, base::FilePath(kDirectoryFilename));
   }
 }
 
 }  // namespace shell_integration_linux