Separate mojo/shell into a runner and the application manager (shell)

mojo/shell/shell_test_main.cc

-// Copyright 2014 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/at_exit.h"
-#include "base/bind.h"
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "base/test/launcher/unit_test_launcher.h"
-#include "base/test/test_suite.h"
-#include "mojo/shell/child_process.h"
-#include "mojo/shell/switches.h"
-#include "testing/gtest/include/gtest/gtest.h"
-
-int main(int argc, char** argv) {
-  base::CommandLine::Init(argc, argv);
-  const base::CommandLine& command_line =
-      *base::CommandLine::ForCurrentProcess();
-
-  if (command_line.HasSwitch(switches::kChildProcess)) {
-    base::AtExitManager at_exit;
-
-    return mojo::shell::ChildProcessMain();
-  }
-
-  base::TestSuite test_suite(argc, argv);
-  return base::LaunchUnitTests(
-      argc, argv,
-      base::Bind(&base::TestSuite::Run, base::Unretained(&test_suite)));
-}