Split SelLdrLauncher into SelLdrLauncher{Standalone,Chrome} classes

src/trusted/sel_universal/sel_universal.cc

 /*
  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 // Second generation sel_universal implemented in C++
 
 #include <stdio.h>
 
@@ skipping 174 matching lines @@
 
     int fd = open(PORTABLE_DEV_NULL, O_RDWR);
     sel_ldr_argv.push_back("-w");
     ss_stdout << "1:" << fd;
     sel_ldr_argv.push_back(ss_stdout.str());
     sel_ldr_argv.push_back("-w");
     ss_stderr << "2:" << fd;
     sel_ldr_argv.push_back(ss_stderr.str());
   }
   // Start sel_ldr with the given application and arguments.
-  nacl::SelLdrLauncher launcher;
+  nacl::SelLdrLauncherStandalone launcher;
   nacl::DescWrapperFactory factory;  // DescWrapper "namespace"
 
   if (!launcher.StartViaCommandLine(command_prefix, sel_ldr_argv, app_argv)) {
     NaClLog(LOG_FATAL, "sel_universal: Failed to launch sel_ldr\n");
   }
 
   DescWrapper *host_file = factory.OpenHostFile(app_name.c_str(), O_RDONLY, 0);
   if (NULL == host_file) {
     NaClLog(LOG_ERROR, "Could not open %s\n", app_name.c_str());
     exit(1);
@@ skipping 84 matching lines @@
   NaClSrpcModuleInit();
   NaClNrdAllModulesInit();
 
   int exit_status = raii_main(argc, argv);
 
   NaClSrpcModuleFini();
   NaClNrdAllModulesFini();
 
   return exit_status;
 }