[ChromeOS] Add option to set controlling terminal when launching process.

base/process_util.h

 // Copyright (c) 2011 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/namespace contains utility functions for enumerating, ending and
 // computing statistics of processes.
 
 #ifndef BASE_PROCESS_UTIL_H_
 #define BASE_PROCESS_UTIL_H_
 #pragma once
@@ skipping 207 matching lines @@
   LaunchOptions() : wait(false),
 #if defined(OS_WIN)
                     start_hidden(false), inherit_handles(false), as_user(NULL),
                     empty_desktop_name(false), job_handle(NULL)
 #else
                     environ(NULL), fds_to_remap(NULL), maximize_rlimits(NULL),
                     new_process_group(false)
 #if defined(OS_LINUX)
                   , clone_flags(0)
 #endif  // OS_LINUX
+#if defined(OS_CHROMEOS)
+                  , ctrl_terminal_fd(-1)
+#endif  // OS_CHROMEOS
 #if defined(OS_MACOSX)
                   , synchronize(NULL)
 #endif  // defined(OS_MACOSX)
 #endif  // !defined(OS_WIN)
       {}
 
   // If true, wait for the process to complete.
   bool wait;
 
 #if defined(OS_WIN)
@@ skipping 37 matching lines @@
   // If true, start the process in a new process group, instead of
   // inheriting the parent's process group.  The pgid of the child process
   // will be the same as its pid.
   bool new_process_group;
 
 #if defined(OS_LINUX)
   // If non-zero, start the process using clone(), using flags as provided.
   int clone_flags;
 #endif  // defined(OS_LINUX)
 
+#if defined(OS_CHROMEOS)
+  // If non-negative, the specified file descriptor will be set as the launched
+  // process' controlling terminal.
+  int ctrl_terminal_fd;
+#endif  // defined(OS_CHROMEOS)
+
 #if defined(OS_MACOSX)
   // When non-NULL, a new LaunchSynchronizationHandle will be created and
   // stored in *synchronize whenever LaunchProcess returns true in the parent
   // process. The child process will have been created (with fork) but will
   // be waiting (before exec) for the parent to call LaunchSynchronize with
   // this handle. Only when LaunchSynchronize is called will the child be
   // permitted to continue execution and call exec. LaunchSynchronize
   // destroys the handle created by LaunchProcess.
   //
   // When synchronize is non-NULL, the parent must call LaunchSynchronize
@@ skipping 519 matching lines @@
 // instance running inside the parent.  The parent's Breakpad instance should
 // not handle the child's exceptions.  Calling RestoreDefaultExceptionHandler
 // in the child after forking will restore the standard exception handler.
 // See http://crbug.com/20371/ for more details.
 void RestoreDefaultExceptionHandler();
 #endif  // defined(OS_MACOSX)
 
 }  // namespace base
 
 #endif  // BASE_PROCESS_UTIL_H_