bluetooth: mac: write characteristic implementation

device/bluetooth/bluetooth_low_energy_device_mac.mm

 // Copyright 2015 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.
 
 #include "device/bluetooth/bluetooth_low_energy_device_mac.h"
 
 #import <CoreFoundation/CoreFoundation.h>
 #include <stddef.h>
 
 #include "base/mac/mac_util.h"
@@ skipping 303 matching lines @@
 
 void BluetoothLowEnergyDeviceMac::DidUpdateValue(
     CBCharacteristic* characteristic,
     NSError* error) {
   BluetoothRemoteGattServiceMac* gatt_service =
       GetBluetoothRemoteGattService(characteristic.service);
   DCHECK(gatt_service);
   gatt_service->DidUpdateValue(characteristic, error);
 }
 
+void BluetoothLowEnergyDeviceMac::DidWriteValue(
+    CBCharacteristic* characteristic,
+    NSError* error) {
+  BluetoothRemoteGattServiceMac* gatt_service =
+      GetBluetoothRemoteGattService(characteristic.service);
+  DCHECK(gatt_service);
+  gatt_service->DidWriteValue(characteristic, error);
+}
+
 // static
 std::string BluetoothLowEnergyDeviceMac::GetPeripheralIdentifier(
     CBPeripheral* peripheral) {
   DCHECK(BluetoothAdapterMac::IsLowEnergyAvailable());
   NSUUID* uuid = [peripheral identifier];
   NSString* uuidString = [uuid UUIDString];
   return base::SysNSStringToUTF8(uuidString);
 }
 
 // static
@@ skipping 37 matching lines @@
   GattServiceMap gatt_services_swapped;
   gatt_services_swapped.swap(gatt_services_);
   gatt_services_swapped.clear();
   if (create_gatt_connection_error_callbacks_.empty()) {
     // TODO(http://crbug.com/585897): Need to pass the error.
     DidDisconnectGatt();
   } else {
     DidFailToConnectGatt(error_code);
   }
 }