Deleted OS_WIN and all Windows specific files from base.

base/process/launch.cc

Index: base/process/launch.cc
diff --git a/base/process/launch.cc b/base/process/launch.cc
index c179b2f5f37423520553ffd0c593669715404ea9..2715f44b529246fc810b3ebff53e21462dfdcf0b 100644
--- a/base/process/launch.cc
+++ b/base/process/launch.cc
@@ -8,18 +8,6 @@ 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),
@@ -35,7 +23,6 @@ LaunchOptions::LaunchOptions()
 #if defined(OS_CHROMEOS)
       , ctrl_terminal_fd(-1)
 #endif  // OS_CHROMEOS
-#endif  // !defined(OS_WIN)
     {
 }