Refactor device::BluetoothGattXXX classes to split into remote/local.

device/bluetooth/bluez/bluetooth_local_gatt_descriptor_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_LOCAL_GATT_DESCRIPTOR_BLUEZ_H_
+#define DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_LOCAL_GATT_DESCRIPTOR_BLUEZ_H_
+
+#include "base/macros.h"
+#include "base/memory/weak_ptr.h"
+#include "dbus/object_path.h"
+#include "device/bluetooth/bluetooth_local_gatt_descriptor.h"
+#include "device/bluetooth/bluez/bluetooth_gatt_descriptor_bluez.h"
+
+namespace bluez {
+
+// The BluetoothLocalGattDescriptorBlueZ class implements
+// BluetoothRemoteGattDescriptor for remote and local GATT characteristic
+// descriptors
+// for platforms that use BlueZ.
+class BluetoothLocalGattDescriptorBlueZ
+    : public BluetoothGattDescriptorBlueZ,
+      public device::BluetoothLocalGattDescriptor {
+ public:
+ private:
+  explicit BluetoothLocalGattDescriptorBlueZ(
+      const dbus::ObjectPath& object_path);
+  ~BluetoothLocalGattDescriptorBlueZ() override;
+
+  // 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<BluetoothLocalGattDescriptorBlueZ> weak_ptr_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(BluetoothLocalGattDescriptorBlueZ);
+};
+
+}  // namespace bluez
+
+#endif  // DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_LOCAL_GATT_DESCRIPTOR_BLUEZ_H_