device: Cleanup class/struct forward declarations

device/bluetooth/bluez/bluetooth_service_record_bluez.h

 // Copyright 2016 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_BLUETOOTH_BLUEZ_BLUETOOTH_SERVICE_RECORD_BLUEZ_H_
 #define DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_SERVICE_RECORD_BLUEZ_H_
 
 #include <cstdint>
 #include <map>
 #include <vector>
 
 #include "base/macros.h"
 #include "device/bluetooth/bluetooth_export.h"
 #include "device/bluetooth/bluez/bluetooth_service_attribute_value_bluez.h"
 
-namespace base {
-class Value;
-}
-
 namespace bluez {
 
 class DEVICE_BLUETOOTH_EXPORT BluetoothServiceRecordBlueZ {
  public:
   // Possible types of errors raised when creating, removing or getting service
   // records.
   enum ErrorCode {
     ERROR_ADAPTER_NOT_READY,
     ERROR_RECORD_ALREADY_EXISTS,
     ERROR_RECORD_DOES_NOT_EXIST,
@@ skipping 21 matching lines @@
   // otherwise.
   bool IsAttributePresented(uint16_t id);
 
  private:
   std::map<uint16_t, BluetoothServiceAttributeValueBlueZ> attributes_;
 };
 
 }  // namespace bluez
 
 #endif  // DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_SERVICE_RECORD_BLUEZ_H_