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diff --git a/device/bluetooth/bluetooth_remote_gatt_service_chromeos.h b/device/bluetooth/bluetooth_remote_gatt_service_chromeos.h
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+++ b/device/bluetooth/bluetooth_remote_gatt_service_chromeos.h
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+// 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_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_CHROMEOS_H_
+#define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_CHROMEOS_H_
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/memory/ref_counted.h"
+#include "base/memory/weak_ptr.h"
+#include "base/observer_list.h"
+#include "dbus/object_path.h"
+#include "device/bluetooth/bluetooth_gatt_service.h"
+#include "device/bluetooth/bluetooth_uuid.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_characteristic_client.h"
+#include "device/bluetooth/dbus/bluetooth_gatt_service_client.h"
+
+namespace device {
+
+class BluetoothAdapter;
+class BluetoothGattCharacteristic;
+
+}  // namespace device
+
+namespace chromeos {
+
+class BluetoothAdapterChromeOS;
+class BluetoothDeviceChromeOS;
+class BluetoothRemoteGattCharacteristicChromeOS;
+class BluetoothRemoteGattDescriptorChromeOS;
+
+// The BluetoothRemoteGattServiceChromeOS class implements BluetootGattService
+// for remote GATT services on the Chrome OS platform.
+class BluetoothRemoteGattServiceChromeOS
+    : public device::BluetoothGattService,
+      public bluez::BluetoothGattServiceClient::Observer,
+      public bluez::BluetoothGattCharacteristicClient::Observer {
+ public:
+  // device::BluetoothGattService overrides.
+  std::string GetIdentifier() const override;
+  device::BluetoothUUID GetUUID() const override;
+  bool IsLocal() const override;
+  bool IsPrimary() const override;
+  device::BluetoothDevice* GetDevice() const override;
+  std::vector<device::BluetoothGattCharacteristic*> GetCharacteristics()
+      const override;
+  std::vector<device::BluetoothGattService*> GetIncludedServices()
+      const override;
+  device::BluetoothGattCharacteristic* GetCharacteristic(
+      const std::string& identifier) const override;
+  bool AddCharacteristic(
+      device::BluetoothGattCharacteristic* characteristic) override;
+  bool AddIncludedService(device::BluetoothGattService* service) override;
+  void Register(const base::Closure& callback,
+                const ErrorCallback& error_callback) override;
+  void Unregister(const base::Closure& callback,
+                  const ErrorCallback& error_callback) override;
+
+  // Object path of the underlying service.
+  const dbus::ObjectPath& object_path() const { return object_path_; }
+
+  // Parses a named D-Bus error into a service error code.
+  static device::BluetoothGattService::GattErrorCode DBusErrorToServiceError(
+      const std::string error_name);
+
+  // Returns the adapter associated with this service.
+  BluetoothAdapterChromeOS* GetAdapter() const;
+
+  // Notifies its observers that the GATT service has changed. This is mainly
+  // used by BluetoothRemoteGattCharacteristicChromeOS instances to notify
+  // service observers when characteristic descriptors get added and removed.
+  void NotifyServiceChanged();
+
+  // Notifies its observers that a descriptor |descriptor| belonging to
+  // characteristic |characteristic| has been added or removed. This is used
+  // by BluetoothRemoteGattCharacteristicChromeOS instances to notify service
+  // observers when characteristic descriptors get added and removed. If |added|
+  // is true, an "Added" event will be sent. Otherwise, a "Removed" event will
+  // be sent.
+  void NotifyDescriptorAddedOrRemoved(
+      BluetoothRemoteGattCharacteristicChromeOS* characteristic,
+      BluetoothRemoteGattDescriptorChromeOS* descriptor,
+      bool added);
+
+  // Notifies its observers that the value of a descriptor has changed. Called
+  // by BluetoothRemoteGattCharacteristicChromeOS instances to notify service
+  // observers.
+  void NotifyDescriptorValueChanged(
+      BluetoothRemoteGattCharacteristicChromeOS* characteristic,
+      BluetoothRemoteGattDescriptorChromeOS* descriptor,
+      const std::vector<uint8>& value);
+
+ private:
+  friend class BluetoothDeviceChromeOS;
+
+  typedef std::map<dbus::ObjectPath, BluetoothRemoteGattCharacteristicChromeOS*>
+      CharacteristicMap;
+
+  BluetoothRemoteGattServiceChromeOS(BluetoothAdapterChromeOS* adapter,
+                                     BluetoothDeviceChromeOS* device,
+                                     const dbus::ObjectPath& object_path);
+  ~BluetoothRemoteGattServiceChromeOS() override;
+
+  // bluez::BluetoothGattServiceClient::Observer override.
+  void GattServicePropertyChanged(const dbus::ObjectPath& object_path,
+                                  const std::string& property_name) override;
+
+  // bluez::BluetoothGattCharacteristicClient::Observer override.
+  void GattCharacteristicAdded(const dbus::ObjectPath& object_path) override;
+  void GattCharacteristicRemoved(const dbus::ObjectPath& object_path) override;
+  void GattCharacteristicPropertyChanged(
+      const dbus::ObjectPath& object_path,
+      const std::string& property_name) override;
+
+  // Object path of the GATT service.
+  dbus::ObjectPath object_path_;
+
+  // The adapter associated with this service. It's ok to store a raw pointer
+  // here since |adapter_| indirectly owns this instance.
+  BluetoothAdapterChromeOS* adapter_;
+
+  // The device this GATT service belongs to. It's ok to store a raw pointer
+  // here since |device_| owns this instance.
+  BluetoothDeviceChromeOS* device_;
+
+  // Mapping from GATT characteristic object paths to characteristic objects.
+  // owned by this service. Since the Chrome OS implementation uses object
+  // paths as unique identifiers, we also use this mapping to return
+  // characteristics by identifier.
+  CharacteristicMap characteristics_;
+
+  // Indicates whether or not the characteristics of this service are known to
+  // have been discovered.
+  bool discovery_complete_;
+
+  // Note: This should remain the last member so it'll be destroyed and
+  // invalidate its weak pointers before any other members are destroyed.
+  base::WeakPtrFactory<BluetoothRemoteGattServiceChromeOS> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattServiceChromeOS);
+};
+
+}  // namespace chromeos
+
+#endif  // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_CHROMEOS_H_