Make GTK and Aura parts orthogonal to OS parts

content/browser/browser_main_loop.h

+// Copyright (c) 2011 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.
+
+#ifndef CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
+#define CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_
+#pragma once
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+
+class BrowserThread;
+class CommandLine;
+class HighResolutionTimerManager;
+class MessageLoop;
+
+struct MainFunctionParams;
+
+namespace base {
+class SystemMonitor;
+}
+
+namespace net {
+class NetworkChangeNotifier;
+}
+
+namespace content {
+
+class BrowserMainParts;
+
+// Implements the main browser loop stages called from |BrowserMain()|.
+// See comments in browser_main_parts.h for additional info.
+class BrowserMainLoop {
+ public:
+  explicit BrowserMainLoop(const MainFunctionParams& parameters);
+  virtual ~BrowserMainLoop();
+
+  void Init();
+
+  void EarlyInitialization();
+  void InitializeToolkit();
+  void MainMessageLoopStart();
+  void RunMainMessageLoopParts(bool* completed_main_message_loop);
+  void MainMessageLoopRun();
+
+  int GetResultCode() const { return result_code_; }
+
+ private:
+  void InitializeMainThread();
+
+  // Members initialized on construction ---------------------------------------
+  const MainFunctionParams& parameters_;
+  const CommandLine& parsed_command_line_;
+  int result_code_;
+
+  // Vector of BrowserMainParts set by CreateBrowserMainParts ------------------
+  // The BrowserParts fucntions for each part are called in the order added.
+  // They are released (destroyed) in the reverse order.
+  std::vector<BrowserMainParts*> parts_list_;
+
+  // Members initialized in |MainMessageLoopStart()| ---------------------------
+  scoped_ptr<MessageLoop> main_message_loop_;
+  scoped_ptr<base::SystemMonitor> system_monitor_;
+  scoped_ptr<HighResolutionTimerManager> hi_res_timer_manager_;
+  scoped_ptr<net::NetworkChangeNotifier> network_change_notifier_;
+  scoped_ptr<BrowserThread> main_thread_;
+
+  DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
+};
+
+}  // namespace content
+
+#endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_