Deleted OS_WIN and all Windows specific files from base.

base/process/launch.cc

 // Copyright (c) 2013 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 "base/process/launch.h"
 
 namespace base {
 
 LaunchOptions::LaunchOptions()
     : wait(false),
-#if defined(OS_WIN)
-      start_hidden(false),
-      handles_to_inherit(NULL),
-      inherit_handles(false),
-      as_user(NULL),
-      empty_desktop_name(false),
-      job_handle(NULL),
-      stdin_handle(NULL),
-      stdout_handle(NULL),
-      stderr_handle(NULL),
-      force_breakaway_from_job_(false)
-#else
       clear_environ(false),
       fds_to_remap(NULL),
       maximize_rlimits(NULL),
       new_process_group(false)
 #if defined(OS_LINUX)
       , clone_flags(0)
       , allow_new_privs(false)
       , kill_on_parent_death(false)
 #endif  // OS_LINUX
 #if defined(OS_POSIX)
       , pre_exec_delegate(NULL)
 #endif  // OS_POSIX
 #if defined(OS_CHROMEOS)
       , ctrl_terminal_fd(-1)
 #endif  // OS_CHROMEOS
-#endif  // !defined(OS_WIN)
     {
 }
 
 LaunchOptions::~LaunchOptions() {
 }
 
 LaunchOptions LaunchOptionsForTest() {
   LaunchOptions options;
 #if defined(OS_LINUX)
   // To prevent accidental privilege sharing to an untrusted child, processes
   // are started with PR_SET_NO_NEW_PRIVS. Do not set that here, since this
   // new child will be used for testing only.
   options.allow_new_privs = true;
 #endif
   return options;
 }
 
 }  // namespace base