Remove duplication between Mandoline and mojo_runner main functions.

mandoline/app/desktop/launcher_process.cc

Index: mandoline/app/desktop/launcher_process.cc
diff --git a/mandoline/app/desktop/launcher_process.cc b/mandoline/app/desktop/launcher_process.cc
deleted file mode 100644
index 5a94a3200c8ee29d9ae4bb3f26d065fac83e54ff..0000000000000000000000000000000000000000
--- a/mandoline/app/desktop/launcher_process.cc
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2015 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 <stdio.h>
-#include <string.h>
-
-#include <algorithm>
-#include <iostream>
-
-#include "base/base_switches.h"
-#include "base/bind.h"
-#include "base/command_line.h"
-#include "base/files/file_util.h"
-#include "base/message_loop/message_loop.h"
-#include "base/path_service.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/trace_event/trace_event.h"
-#include "components/tracing/trace_config_file.h"
-#include "components/tracing/tracing_switches.h"
-#include "mandoline/app/desktop/launcher_process.h"
-#include "mojo/runner/context.h"
-#include "mojo/runner/switches.h"
-#include "mojo/shell/switches.h"
-
-namespace mandoline {
-
-int LauncherProcessMain(int argc, char** argv) {
-  mojo::runner::Tracer tracer;
-  base::CommandLine* command_line =
-      base::CommandLine::ForCurrentProcess();
-  if (!command_line->HasSwitch(switches::kMojoSingleProcess))
-    command_line->AppendSwitch(switches::kEnableMultiprocess);
-  command_line->AppendSwitch("use-new-edk");
-  // http://crbug.com/546644
-  command_line->AppendSwitch(switches::kMojoNoSandbox);
-
-  bool trace_startup = command_line->HasSwitch(switches::kTraceStartup);
-  if (trace_startup) {
-    tracer.Start(
-        command_line->GetSwitchValueASCII(switches::kTraceStartup),
-        command_line->GetSwitchValueASCII(switches::kTraceStartupDuration),
-        "mandoline.trace");
-  }
-
-  // We want the runner::Context to outlive the MessageLoop so that pipes are
-  // all gracefully closed / error-out before we try to shut the Context down.
-  mojo::runner::Context shell_context;
-  {
-    base::MessageLoop message_loop;
-    base::FilePath shell_dir;
-    PathService::Get(base::DIR_MODULE, &shell_dir);
-    if (!shell_context.Init(shell_dir)) {
-      return 0;
-    }
-
-    message_loop.PostTask(FROM_HERE,
-                          base::Bind(&mojo::runner::Context::Run,
-                                     base::Unretained(&shell_context),
-                                     GURL("mojo:desktop_ui")));
-    message_loop.Run();
-
-    // Must be called before |message_loop| is destroyed.
-    shell_context.Shutdown();
-  }
-
-  return 0;
-}
-
-}  // namespace mandoline