ui: Cleanup class/struct forward declarations

ui/events/ozone/evdev/input_device_factory_evdev.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 UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_EVDEV_H_
 #define UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_EVDEV_H_
 
 #include <map>
 #include <memory>
 #include <set>
 #include <vector>
 
 #include "base/callback.h"
 #include "base/compiler_specific.h"
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/task_runner.h"
 #include "ui/events/ozone/evdev/event_converter_evdev.h"
 #include "ui/events/ozone/evdev/event_device_info.h"
 #include "ui/events/ozone/evdev/events_ozone_evdev_export.h"
 #include "ui/events/ozone/evdev/input_device_settings_evdev.h"
 
 namespace ui {
 
 class CursorDelegateEvdev;
 class DeviceEventDispatcherEvdev;
-class InputDeviceFactoryEvdevProxy;
 
 #if !defined(USE_EVDEV)
 #error Missing dependency on ui/events/ozone:events_ozone_evdev
 #endif
 
 #if defined(USE_EVDEV_GESTURES)
 class GesturePropertyProvider;
 #endif
 
 typedef base::Callback<void(std::unique_ptr<std::string>)>
@@ skipping 101 matching lines @@
 
   // Support weak pointers for attach & detach callbacks.
   base::WeakPtrFactory<InputDeviceFactoryEvdev> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(InputDeviceFactoryEvdev);
 };
 
 }  // namespace ui
 
 #endif  // UI_EVENTS_OZONE_EVDEV_INPUT_DEVICE_FACTORY_EVDEV_H_