1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #ifndef CONTENT_BROWSER_DEVICE_MONITOR_MAC_H_ 6 #define CONTENT_BROWSER_DEVICE_MONITOR_MAC_H_ 7 8 #include "base/basictypes.h" 9 #include "base/system_monitor/system_monitor.h" 10 11 namespace { 12 class DeviceMonitorMacImpl; 13 } 14 15 namespace content { 16 17 // Class to track audio/video devices removal or addition via callback to 18 // base::SystemMonitor ProcessDevicesChanged(). A single object of this class 19 // is created from the browser main process and lives as long as this one. 20 class DeviceMonitorMac { 21 public: 22 DeviceMonitorMac(); 23 ~DeviceMonitorMac(); 24 25 // Method called by the internal DeviceMonitorMacImpl object 26 // |device_monitor_impl_| when a device of type |type| has been added to or 27 // removed from the system. This code executes in the notification thread 28 // (QTKit or AVFoundation). 29 void NotifyDeviceChanged(base::SystemMonitor::DeviceType type); 30 31 private: 32 scoped_ptr<DeviceMonitorMacImpl> device_monitor_impl_; 33 34 DISALLOW_COPY_AND_ASSIGN(DeviceMonitorMac); 35 }; 36 37 } // namespace content 38 39 #endif // CONTENT_BROWSER_DEVICE_MONITOR_MAC_H_ 40