Created fakes for HID-detection screen testing. Initial browsertest added.

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 <string>
 #include <vector>
 
@@ skipping 27 matching lines @@
     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;
 
   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.
   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:
-  ~InputServiceLinux() override;
 
   void AddDevice(const InputDeviceInfo& info);
   void RemoveDevice(const std::string& id);
 
   bool CalledOnValidThread() const;
 
+  DeviceMap devices_;
+  ObserverList<Observer> observers_;
+
  private:
   friend struct base::DefaultDeleter<InputServiceLinux>;
 
-  typedef base::hash_map<std::string, InputDeviceInfo> DeviceMap;
-
-  DeviceMap devices_;
-  ObserverList<Observer> observers_;
-
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(InputServiceLinux);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_HID_INPUT_SERVICE_LINUX_H_