bluetooth: macOS: Support for extra didConnectPeripheral event from macOS.

device/bluetooth/bluetooth_low_energy_device_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_BLUETOOTH_LOW_ENERGY_DEVICE_MAC_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_DEVICE_MAC_H_
 
 #if defined(OS_IOS)
 #import <CoreBluetooth/CoreBluetooth.h>
 #else  // !defined(OS_IOS)
@@ skipping 92 matching lines @@
   static std::string GetPeripheralHashAddress(CBPeripheral* peripheral);
 
  private:
   friend class BluetoothAdapterMac;
   friend class BluetoothAdapterMacTest;
   friend class BluetoothLowEnergyPeripheralBridge;
   friend class BluetoothRemoteGattServiceMac;
   friend class BluetoothTestMac;
   friend class BluetoothRemoteGattServiceMac;
 
-  // Calls the macOS to discover primary services.
+  // Called by the adapter when the device is connected.
+  void DidConnectPeripheral();
+
+  // Calls macOS to discover primary services.
   void DiscoverPrimaryServices();
 
   // Sends notification if this device is ready with all services discovered.
   void SendNotificationIfDiscoveryComplete();
 
   // Returns the Bluetooth adapter.
   BluetoothAdapterMac* GetMacAdapter();
 
   // Returns the CoreBluetooth Peripheral.
   CBPeripheral* GetPeripheral();
 
   // Returns BluetoothRemoteGattServiceMac based on the CBService.
   BluetoothRemoteGattServiceMac* GetBluetoothRemoteGattService(
       CBService* service) const;
 
   // Returns BluetoothRemoteGattDescriptorMac based on the CBDescriptor.
   BluetoothRemoteGattDescriptorMac* GetBluetoothRemoteGattDescriptor(
       CBDescriptor* cb_descriptor) const;
 
   // Callback used when the CoreBluetooth Peripheral is disconnected.
   void DidDisconnectPeripheral(NSError* error);
 
   // CoreBluetooth data structure.
   base::scoped_nsobject<CBPeripheral> peripheral_;
 
   // Objective-C delegate for the CBPeripheral.
   base::scoped_nsobject<BluetoothLowEnergyPeripheralDelegate>
       peripheral_delegate_;
 
+  // Whether the device is connected.
+  bool connected_;
+
   // The peripheral's identifier, as returned by [CBPeripheral identifier].
   std::string identifier_;
 
   // A local address for the device created by hashing the peripheral
   // identifier.
   std::string hash_address_;
 
   // Increases each time -[CBPeripheral discoverServices:] is called, and
   // decreases each time DidDiscoverPrimaryServices() is called. Once the
   // value is set to 0, characteristics and properties are discovered.
   int discovery_pending_count_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothLowEnergyDeviceMac);
 };
 
 // Stream operator for logging.
 DEVICE_BLUETOOTH_EXPORT std::ostream& operator<<(
     std::ostream& out,
     const BluetoothLowEnergyDeviceMac& device);
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_DEVICE_MAC_H_