Revert of Build services as standalone executables

services/service_manager/standalone/desktop/main_helper.cc

Index: services/service_manager/standalone/desktop/main_helper.cc
diff --git a/services/service_manager/standalone/desktop/main_helper.cc b/services/service_manager/standalone/desktop/main_helper.cc
index 45d2f03f7fe1f7ad937da3d886269c3f6a31ebcd..d3f11c8c588e64db843f2bcf38ad02a972d2db02 100644
--- a/services/service_manager/standalone/desktop/main_helper.cc
+++ b/services/service_manager/standalone/desktop/main_helper.cc
@@ -15,6 +15,7 @@
 #include "base/strings/string_split.h"
 #include "base/strings/utf_string_conversions.h"
 #include "services/service_manager/runner/common/switches.h"
+#include "services/service_manager/runner/host/child_process.h"
 #include "services/service_manager/runner/init.h"
 #include "services/service_manager/standalone/desktop/launcher_process.h"
 
@@ -28,6 +29,8 @@
 
 int StandaloneServiceManagerMain(int argc, char** argv) {
   base::CommandLine::Init(argc, argv);
+  const base::CommandLine& command_line =
+      *base::CommandLine::ForCurrentProcess();
 
   base::AtExitManager at_exit;
   InitializeLogging();
@@ -37,6 +40,9 @@
   base::RouteStdioToConsole(false);
 #endif
 
+  if (command_line.HasSwitch(switches::kChildProcess))
+    return ChildProcessMain();
+
   return LauncherProcessMain();
 }