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

device/bluetooth/bluez/bluetooth_remote_gatt_descriptor_bluez.h

-// Copyright 2014 The Chromium Authors. All rights reserved.
+// 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_BLUETOOTH_GATT_DESCRIPTOR_BLUEZ_H_
-#define DEVICE_BLUETOOTH_BLUETOOTH_GATT_DESCRIPTOR_BLUEZ_H_
+#ifndef DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_BLUEZ_H_
+#define DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_BLUEZ_H_
 
 #include <stdint.h>
-
 #include <string>
 #include <vector>
 
+#include "base/callback_forward.h"
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "dbus/object_path.h"
-#include "device/bluetooth/bluetooth_gatt_descriptor.h"
+#include "device/bluetooth/bluetooth_remote_gatt_characteristic.h"
+#include "device/bluetooth/bluetooth_remote_gatt_descriptor.h"
 #include "device/bluetooth/bluetooth_uuid.h"
-
-namespace device {
-
-class BluetoothGattCharacteristic;
-
-}  // namespace device
+#include "device/bluetooth/bluez/bluetooth_gatt_descriptor_bluez.h"
+#include "device/bluetooth/bluez/bluetooth_remote_gatt_characteristic_bluez.h"
 
 namespace bluez {
 
-class BluetoothGattCharacteristicBlueZ;
-
 // The BluetoothGattDescriptorBlueZ class implements
-// BluetoothGattDescriptor for remote and local GATT characteristic descriptors
-// for platforms that use BlueZ.
-class BluetoothGattDescriptorBlueZ : public device::BluetoothGattDescriptor {
+// BluetoothRemoteGattDescriptor for remote GATT characteristic descriptors for
+// platforms that use BlueZ.
+class BluetoothRemoteGattDescriptorBlueZ
+    : public BluetoothGattDescriptorBlueZ,
+      public device::BluetoothRemoteGattDescriptor {
  public:
-  // device::BluetoothGattDescriptor overrides.
-  std::string GetIdentifier() const override;
+  // device::BluetoothRemoteGattDescriptor overrides.
   device::BluetoothUUID GetUUID() const override;
-  bool IsLocal() const override;
   const std::vector<uint8_t>& GetValue() const override;
-  device::BluetoothGattCharacteristic* GetCharacteristic() const override;
-  device::BluetoothGattCharacteristic::Permissions GetPermissions()
+  device::BluetoothRemoteGattCharacteristic* GetCharacteristic() const override;
+  device::BluetoothRemoteGattCharacteristic::Permissions GetPermissions()
       const override;
   void ReadRemoteDescriptor(const ValueCallback& callback,
                             const ErrorCallback& error_callback) override;
   void WriteRemoteDescriptor(const std::vector<uint8_t>& new_value,
                              const base::Closure& callback,
                              const ErrorCallback& error_callback) override;
 
-  // Object path of the underlying D-Bus characteristic.
-  const dbus::ObjectPath& object_path() const { return object_path_; }
-
  private:
   friend class BluetoothRemoteGattCharacteristicBlueZ;
 
-  BluetoothGattDescriptorBlueZ(BluetoothGattCharacteristicBlueZ* characteristic,
-                               const dbus::ObjectPath& object_path,
-                               bool is_local);
-  ~BluetoothGattDescriptorBlueZ() override;
+  BluetoothRemoteGattDescriptorBlueZ(
+      BluetoothRemoteGattCharacteristicBlueZ* characteristic,
+      const dbus::ObjectPath& object_path);
+  ~BluetoothRemoteGattDescriptorBlueZ() override;
 
   // Called by dbus:: on unsuccessful completion of a request to read or write
   // the descriptor value.
   void OnError(const ErrorCallback& error_callback,
                const std::string& error_name,
                const std::string& error_message);
 
-  // Object path of the D-Bus descriptor object.
-  dbus::ObjectPath object_path_;
-
   // The GATT characteristic this descriptor belongs to.
-  BluetoothGattCharacteristicBlueZ* characteristic_;
-
-  // Is this a remote or local descriptor.
-  bool is_local_;
+  BluetoothRemoteGattCharacteristicBlueZ* characteristic_;
 
   // 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<BluetoothGattDescriptorBlueZ> weak_ptr_factory_;
+  base::WeakPtrFactory<BluetoothRemoteGattDescriptorBlueZ> weak_ptr_factory_;
 
-  DISALLOW_COPY_AND_ASSIGN(BluetoothGattDescriptorBlueZ);
+  DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattDescriptorBlueZ);
 };
 
 }  // namespace bluez
 
-#endif  // DEVICE_BLUETOOTH_BLUETOOTH_GATT_DESCRIPTOR_BLUEZ_H_
+#endif  // DEVICE_BLUETOOTH_BLUEZ_BLUETOOTH_REMOTE_GATT_DESCRIPTOR_BLUEZ_H_