Replace ChildProcess/AppChildProcess with a simple ChildMain().

shell/child_process.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 "shell/child_process.h"
-
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "mojo/edk/embedder/platform_channel_pair.h"
-#include "shell/app_child_process.h"
-#include "shell/switches.h"
-
-namespace mojo {
-namespace shell {
-
-ChildProcess::~ChildProcess() {
-}
-
-// static
-scoped_ptr<ChildProcess> ChildProcess::Create(
-    const base::CommandLine& command_line) {
-  if (!command_line.HasSwitch(switches::kChildProcess))
-    return scoped_ptr<ChildProcess>();
-
-  scoped_ptr<ChildProcess> rv(new AppChildProcess());
-  if (!rv)
-    return nullptr;
-
-  rv->platform_channel_ =
-      embedder::PlatformChannelPair::PassClientHandleFromParentProcess(
-          command_line);
-  CHECK(rv->platform_channel_.is_valid());
-  return rv;
-}
-
-ChildProcess::ChildProcess() {
-}
-
-}  // namespace shell
-}  // namespace mojo