Bluetooth: macOS: Implementing read/write for descriptors

device/bluetooth/bluetooth_low_energy_peripheral_delegate.mm

 // 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.
 
 #include "device/bluetooth/bluetooth_low_energy_peripheral_delegate.h"
 
 #include "device/bluetooth/bluetooth_adapter_mac.h"
 #include "device/bluetooth/bluetooth_low_energy_discovery_manager_mac.h"
 
 namespace device {
@@ skipping 31 matching lines @@
   void DidUpdateNotificationState(CBCharacteristic* characteristic,
                                   NSError* error) {
     device_mac_->DidUpdateNotificationState(characteristic, error);
   }
 
   void DidDiscoverDescriptors(CBCharacteristic* characteristic,
                               NSError* error) {
     device_mac_->DidDiscoverDescriptors(characteristic, error);
   }
 
+  void DidUpdateValueForDescriptor(CBDescriptor* descriptor, NSError* error) {
+    device_mac_->DidUpdateValueForDescriptor(descriptor, error);
+  }
+
+  void DidWriteValueForDescriptor(CBDescriptor* descriptor, NSError* error) {
+    device_mac_->DidWriteValueForDescriptor(descriptor, error);
+  }
+
   CBPeripheral* GetPeripheral() { return device_mac_->GetPeripheral(); }
 
  private:
   BluetoothLowEnergyDeviceMac* device_mac_;
 };
 
 }  // namespace device
 
 @implementation BluetoothLowEnergyPeripheralDelegate
 
@@ skipping 44 matching lines @@
                                           error:(nullable NSError*)error {
   bridge_->DidUpdateNotificationState(characteristic, error);
 }
 
 - (void)peripheral:(CBPeripheral*)peripheral
     didDiscoverDescriptorsForCharacteristic:(CBCharacteristic*)characteristic
                                       error:(nullable NSError*)error {
   bridge_->DidDiscoverDescriptors(characteristic, error);
 }
 
+- (void)peripheral:(CBPeripheral*)peripheral
+    didUpdateValueForDescriptor:(CBDescriptor*)descriptor
+                          error:(nullable NSError*)error {
+  bridge_->DidUpdateValueForDescriptor(descriptor, error);
+}
+
+- (void)peripheral:(CBPeripheral*)peripheral
+    didWriteValueForDescriptor:(CBDescriptor*)descriptor
+                         error:(nullable NSError*)error {
+  bridge_->DidWriteValueForDescriptor(descriptor, error);
+}
+
 @end