bluetooth: Refactor GetDescriptorForUUID to GetDescriptorsForUUID.

device/bluetooth/test/bluetooth_test_android.cc

Index: device/bluetooth/test/bluetooth_test_android.cc
diff --git a/device/bluetooth/test/bluetooth_test_android.cc b/device/bluetooth/test/bluetooth_test_android.cc
index b1cd3577077a662699086331ffb9ea05e38a2575..1eb8e84cd3c3bf8394538da3cefaa56c53163024 100644
--- a/device/bluetooth/test/bluetooth_test_android.cc
+++ b/device/bluetooth/test/bluetooth_test_android.cc
@@ -186,6 +186,19 @@ void BluetoothTestAndroid::SimulateGattNotifySessionStarted(
       0);  // android.bluetooth.BluetoothGatt.GATT_SUCCESS
 }
 
+void BluetoothTestAndroid::SimulateGattNotifySessionStartError(
+    BluetoothGattCharacteristic* characteristic,
+    BluetoothGattService::GattErrorCode error_code) {
+  BluetoothGattDescriptor* descriptor = characteristic->GetDescriptorForUUID(
+      BluetoothGattDescriptor::ClientCharacteristicConfigurationUuid());
+  BluetoothRemoteGattDescriptorAndroid* descriptor_android =
+      static_cast<BluetoothRemoteGattDescriptorAndroid*>(descriptor);
+  Java_FakeBluetoothGattDescriptor_valueWrite(
+      base::android::AttachCurrentThread(),
+      descriptor_android ? descriptor_android->GetJavaObject().obj() : nullptr,
+      BluetoothRemoteGattServiceAndroid::GetAndroidErrorCode(error_code));
+}
+
 void BluetoothTestAndroid::
     SimulateGattCharacteristicSetNotifyWillFailSynchronouslyOnce(
         BluetoothGattCharacteristic* characteristic) {