Move some basic early process init into Service Manager

content/app/content_service_manager_main_delegate.cc

+// Copyright 2017 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 "content/app/content_service_manager_main_delegate.h"
+
+#include "content/public/app/content_main_runner.h"
+
+namespace content {
+
+ContentServiceManagerMainDelegate::ContentServiceManagerMainDelegate(
+    const ContentMainParams& params)
+    : content_main_params_(params),
+      content_main_runner_(ContentMainRunner::Create()) {}
+
+ContentServiceManagerMainDelegate::~ContentServiceManagerMainDelegate() =
+    default;
+
+int ContentServiceManagerMainDelegate::Initialize(
+    const InitializeParams& params) {
+#if defined(OS_ANDROID)
+  // May be called twice on Android due to the way browser startup requests are
+  // dispatched by the system.
+  if (initialized_)
+    return -1;
+#endif
+
+#if defined(OS_MACOSX)
+  content_main_params_.autorelease_pool = params.autorelease_pool;
+#endif
+
+  return content_main_runner_->Initialize(content_main_params_);
+}
+
+int ContentServiceManagerMainDelegate::Run() {
+  return content_main_runner_->Run();
+}
+
+void ContentServiceManagerMainDelegate::ShutDown() {
+#if !defined(OS_ANDROID)
+  content_main_runner_->Shutdown();
+#endif
+}
+
+}  // namespace content