Udev-related methods are extracted from HidServiceLinux into individual service.

device/hid/hid_connection_linux.h

 // Copyright (c) 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_CONNECTION_LINUX_H_
 #define DEVICE_HID_HID_CONNECTION_LINUX_H_
 
+#include <queue>
+
 #include "base/files/file.h"
 #include "base/memory/ref_counted.h"
+#include "base/message_loop/message_pump_libevent.h"
 #include "device/hid/hid_connection.h"
 #include "device/hid/hid_device_info.h"
-#include "device/hid/hid_service_linux.h"
+#include "device/hid/udev_common.h"
 
 namespace device {
 
 class HidConnectionLinux : public HidConnection,
                            public base::MessagePumpLibevent::Watcher {
  public:
   HidConnectionLinux(HidDeviceInfo device_info,
                      ScopedUdevDevicePtr udev_raw_device);
 
   virtual void Read(scoped_refptr<net::IOBufferWithSize> buffer,
@@ skipping 28 matching lines @@
   std::queue<PendingHidRead> pending_reads_;
 
   base::ThreadChecker thread_checker_;
 
   DISALLOW_COPY_AND_ASSIGN(HidConnectionLinux);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_HID_HID_CONNECTION_LINUX__