bluetooth: mac: write characteristic implementation

device/bluetooth/bluetooth_remote_gatt_service_mac.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_BLUETOOTH_REMOTE_GATT_SERVICE_MAC_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_MAC_H_
 
 #include <stdint.h>
 
 #include <vector>
@@ skipping 36 matching lines @@
  private:
   friend class BluetoothLowEnergyDeviceMac;
   friend class BluetoothRemoteGattCharacteristicMac;
   friend class BluetoothTestMac;
 
   // Starts discovering characteristics by calling CoreBluetooth.
   void DiscoverCharacteristics();
   // Called by the BluetoothLowEnergyDeviceMac instance when the characteristics
   // has been discovered.
   void DidDiscoverCharacteristics();
-  // Called by the BluetoothRemoteGattServiceMac instance when the
+  // Called by the BluetoothLowEnergyDeviceMac instance when the
   // characteristics value has been read.
   void DidUpdateValue(CBCharacteristic* characteristic, NSError* error);
+  // Called by the BluetoothLowEnergyDeviceMac instance when the
+  // characteristics value has been written.
+  void DidWriteValue(CBCharacteristic* characteristic, NSError* error);
   // Returns true if the characteristics has been discovered.
   bool IsDiscoveryComplete();
 
   // Returns the mac adapter.
   BluetoothAdapterMac* GetMacAdapter() const;
   // Returns CBPeripheral.
   CBPeripheral* GetCBPeripheral() const;
   // Returns CBService.
   CBService* GetService() const;
   // Returns a remote characteristic based on the CBCharacteristic.
@@ skipping 15 matching lines @@
   BluetoothUUID uuid_;
   // Is true if the characteristics has been discovered.
   bool is_discovery_complete_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothRemoteGattServiceMac);
 };
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_REMOTE_GATT_SERVICE_MAC_H_