add device monitoring on Mac.

content/browser/browser_main_loop.h

 // Copyright (c) 2012 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_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/browser_process_sub_thread.h"
@@ skipping 32 matching lines @@
 
 class BrowserMainParts;
 class BrowserShutdownImpl;
 class BrowserThreadImpl;
 class ResourceDispatcherHostImpl;
 class WebKitThread;
 struct MainFunctionParams;
 
 #if defined(OS_LINUX)
 class DeviceMonitorLinux;
+#elif defined(OS_MACOSX)
+class DeviceMonitorMac;
 #endif
 
 // Implements the main browser loop stages called from BrowserMainRunner.
 // See comments in browser_main_parts.h for additional info.
 // All functions are to be called only on the UI thread unless otherwise noted.
 class BrowserMainLoop {
  public:
   explicit BrowserMainLoop(const content::MainFunctionParams& parameters);
   virtual ~BrowserMainLoop();
 
@@ skipping 41 matching lines @@
   scoped_ptr<HighResolutionTimerManager> hi_res_timer_manager_;
   scoped_ptr<net::NetworkChangeNotifier> network_change_notifier_;
   scoped_ptr<media::AudioManager> audio_manager_;
   scoped_ptr<media_stream::MediaStreamManager> media_stream_manager_;
   // Per-process listener for online state changes.
   scoped_ptr<BrowserOnlineStateObserver> online_state_observer_;
 #if defined(OS_WIN)
   scoped_ptr<SystemMessageWindowWin> system_message_window_;
 #elif defined(OS_LINUX)
   scoped_ptr<DeviceMonitorLinux> device_monitor_linux_;
+#elif defined(OS_MACOSX)
+  scoped_ptr<DeviceMonitorMac> device_monitor_mac_;
 #endif
 
   // Destroy parts_ before main_message_loop_ (required) and before other
   // classes constructed in content (but after main_thread_).
   scoped_ptr<BrowserMainParts> parts_;
 
   // Members initialized in |InitializeMainThread()| ---------------------------
   // This must get destroyed before other threads that are created in parts_.
   scoped_ptr<BrowserThreadImpl> main_thread_;
 
@@ skipping 13 matching lines @@
 #if defined(OS_WIN)
   ui::ScopedOleInitializer ole_initializer_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(BrowserMainLoop);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_BROWSER_MAIN_LOOP_H_