Revert 247926 "HID backend"

trunk/src/device/hid/hid_service_mac.h

Index: trunk/src/device/hid/hid_service_mac.h
===================================================================
--- trunk/src/device/hid/hid_service_mac.h	(revision 247933)
+++ trunk/src/device/hid/hid_service_mac.h	(working copy)
@@ -1,81 +0,0 @@
-// 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_HID_SERVICE_MAC_H_
-#define DEVICE_HID_HID_SERVICE_MAC_H_
-
-#include <map>
-#include <string>
-#include <vector>
-
-#include "base/basictypes.h"
-#include "base/mac/foundation_util.h"
-#include "base/memory/ref_counted.h"
-#include "base/memory/singleton.h"
-#include "base/message_loop/message_loop.h"
-#include "base/strings/string16.h"
-#include "base/synchronization/waitable_event.h"
-#include "base/threading/thread.h"
-#include "base/threading/thread_checker.h"
-#include "build/build_config.h"
-#include "device/hid/hid_device_info.h"
-#include "device/hid/hid_service.h"
-
-#include <CoreFoundation/CoreFoundation.h>
-#include <IOKit/hid/IOHIDManager.h>
-
-namespace device {
-
-class HidConnection;
-class HidService;
-
-class HidServiceMac : public HidService {
- public:
-  HidServiceMac();
-
-  virtual scoped_refptr<HidConnection> Connect(std::string device_id) OVERRIDE;
-
- private:
-  virtual ~HidServiceMac();
-
-  void ScheduleRunLoop();
-  void UnscheduleRunLoop();
-
-  // Device changing callbacks.
-  static void AddDeviceCallback(void* context,
-                                IOReturn result,
-                                void* sender,
-                                IOHIDDeviceRef ref);
-  static void RemoveDeviceCallback(void* context,
-                                   IOReturn result,
-                                   void* sender,
-                                   IOHIDDeviceRef ref);
-  static HidServiceMac* InstanceFromContext(void* context);
-
-  IOHIDDeviceRef FindDevice(std::string id);
-
-  void Enumerate();
-
-  void PlatformAddDevice(IOHIDDeviceRef ref);
-  void PlatformRemoveDevice(IOHIDDeviceRef ref);
-
-  // The message loop this object belongs to.
-  scoped_refptr<base::MessageLoopProxy> message_loop_;
-
-  // Platform HID Manager
-  base::ScopedCFTypeRef<IOHIDManagerRef> hid_manager_ref_;
-
-  // Enumeration thread.
-  scoped_ptr<base::Thread> enumeration_runloop_thread_;
-  CFRunLoopRef enumeration_runloop_;
-  base::WaitableEvent enumeration_runloop_init_;
-
-  bool available_;
-
-  DISALLOW_COPY_AND_ASSIGN(HidServiceMac);
-};
-
-}  // namespace device
-
-#endif  // DEVICE_HID_HID_SERVICE_MAC_H_