Bluetooth: mac: Working on macOS descriptor implementation.

device/bluetooth/test/mock_bluetooth_cbperipheral_mac.h

 // 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.
 
 #ifndef DEVICE_BLUETOOTH_MOCK_BLUETOOTH_CBPERIPHERAL_MAC_H_
 #define DEVICE_BLUETOOTH_MOCK_BLUETOOTH_CBPERIPHERAL_MAC_H_
 
 #include "base/mac/sdk_forward_declarations.h"
 #include "build/build_config.h"
 
 #import <CoreBluetooth/CoreBluetooth.h>
 
 namespace device {
 
 class BluetoothTestMac;
 }
 
+@class MockCBCharacteristic;
+
 // This class mocks the behavior of a CBPeripheral.
 @interface MockCBPeripheral : NSObject
 
 @property(nonatomic, readonly) CBPeripheralState state;
 @property(nonatomic, readonly) NSUUID* identifier;
 @property(nonatomic, readonly) NSString* name;
 @property(nonatomic, assign) id<CBPeripheralDelegate> delegate;
 @property(nonatomic, readonly) CBPeripheral* peripheral;
 @property(retain, readonly) NSArray* services;
 @property(nonatomic, assign) device::BluetoothTestMac* bluetoothTestMac;
 
 - (instancetype)init NS_UNAVAILABLE;
 - (instancetype)initWithUTF8StringIdentifier:(const char*)identifier;
 - (instancetype)initWithUTF8StringIdentifier:(const char*)identifier
                                         name:(NSString*)name;
 - (instancetype)initWithIdentifier:(NSUUID*)identifier
                               name:(NSString*)name NS_DESIGNATED_INITIALIZER;
 
 // Methods for faking events.
 - (void)setState:(CBPeripheralState)state;
 - (void)removeAllServices;
 - (void)addServices:(NSArray*)services;
 - (void)didDiscoverServicesWithError:(NSError*)error;
 - (void)removeService:(CBService*)uuid;
+- (void)mockDidDiscoverEvents;
 - (void)didModifyServices:(NSArray*)invalidatedServices;
-- (void)mockDidDiscoverEvents;
+- (void)didDiscoverDescriptorsWithCharacteristic:
+    (MockCBCharacteristic*)characteristic_mock;
 
 @end
 
 #endif  // DEVICE_BLUETOOTH_MOCK_BLUETOOTH_CBPERIPHERAL_MAC_H_