Move DeviceMonitorLinux to //device/core.

device/hid/input_service_linux.h

 // 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.
 
 #ifndef DEVICE_HID_INPUT_SERVICE_LINUX_H_
 #define DEVICE_HID_INPUT_SERVICE_LINUX_H_
 
 #include <memory>
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/containers/hash_tables.h"
 #include "base/macros.h"
-#include "base/message_loop/message_loop.h"
 #include "base/observer_list.h"
 #include "base/threading/thread_checker.h"
-#include "device/hid/device_monitor_linux.h"
 
 namespace device {
 
 // This class provides information and notifications about
 // connected/disconnected input/HID devices. This class is *NOT*
 // thread-safe and all methods must be called from the FILE thread.
-class InputServiceLinux : public base::MessageLoop::DestructionObserver {
+class InputServiceLinux {
  public:
   struct InputDeviceInfo {
     enum Subsystem { SUBSYSTEM_HID, SUBSYSTEM_INPUT, SUBSYSTEM_UNKNOWN };
     enum Type { TYPE_BLUETOOTH, TYPE_USB, TYPE_SERIO, TYPE_UNKNOWN };
 
     InputDeviceInfo();
     InputDeviceInfo(const InputDeviceInfo& other);
 
     std::string id;
     std::string name;
     Subsystem subsystem;
     Type type;
 
     bool is_accelerometer : 1;
     bool is_joystick : 1;
     bool is_key : 1;
     bool is_keyboard : 1;
     bool is_mouse : 1;
     bool is_tablet : 1;
     bool is_touchpad : 1;
     bool is_touchscreen : 1;
   };
 
-
   using DeviceMap = base::hash_map<std::string, InputDeviceInfo>;
 
   class Observer {
    public:
     virtual ~Observer() {}
     virtual void OnInputDeviceAdded(const InputDeviceInfo& info) = 0;
     virtual void OnInputDeviceRemoved(const std::string& id) = 0;
   };
 
   InputServiceLinux();
-  ~InputServiceLinux() override;
+  virtual ~InputServiceLinux();
 
   static InputServiceLinux* GetInstance();
   static bool HasInstance();
   static void SetForTesting(InputServiceLinux* service);
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // Returns list of all currently connected input/hid devices.
   virtual void GetDevices(std::vector<InputDeviceInfo>* devices);
 
   // Returns an info about input device identified by |id|. When there're
   // no input or hid device with such id, returns false and doesn't
   // modify |info|.
   bool GetDeviceInfo(const std::string& id, InputDeviceInfo* info) const;
 
-  // Implements base::MessageLoop::DestructionObserver
-  void WillDestroyCurrentMessageLoop() override;
-
  protected:
-
   void AddDevice(const InputDeviceInfo& info);
   void RemoveDevice(const std::string& id);
 
   bool CalledOnValidThread() const;
 
   DeviceMap devices_;
   base::ObserverList<Observer> observers_;
 
  private:
   friend std::default_delete<InputServiceLinux>;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(InputServiceLinux);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_HID_INPUT_SERVICE_LINUX_H_