[CrOS Tether]: Create BleConnectionManager, which manages secure connections between the current de…

chromeos/components/tether/ble_scanner.h

 // 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.
 
 #ifndef CHROMEOS_COMPONENTS_BLE_SCANNER_H_
 #define CHROMEOS_COMPONENTS_BLE_SCANNER_H_
 
 #include <map>
 
 #include "base/macros.h"
@@ skipping 18 matching lines @@
   class Observer {
    public:
     virtual void OnReceivedAdvertisementFromDevice(
         const std::string& device_address,
         cryptauth::RemoteDevice remote_device) = 0;
   };
 
   BleScanner(const LocalDeviceDataProvider* local_device_data_provider);
   ~BleScanner() override;
 
-  bool RegisterScanFilterForDevice(
+  virtual bool RegisterScanFilterForDevice(
       const cryptauth::RemoteDevice& remote_device);
-  bool UnregisterScanFilterForDevice(
+  virtual bool UnregisterScanFilterForDevice(
       const cryptauth::RemoteDevice& remote_device);
 
   bool IsDeviceRegistered(const std::string& device_id);
 
   void AddObserver(Observer* observer);
   void RemoveObserver(Observer* observer);
 
   // device::BluetoothAdapter::Observer
   void AdapterPoweredChanged(device::BluetoothAdapter* adapter,
                              bool powered) override;
   void DeviceAdded(device::BluetoothAdapter* adapter,
                    device::BluetoothDevice* bluetooth_device) override;
   void DeviceChanged(device::BluetoothAdapter* adapter,
                      device::BluetoothDevice* bluetooth_device) override;
 
+ protected:
+  base::ObserverList<Observer> observer_list_;
+
  private:
   friend class BleScannerTest;
 
   class Delegate {
    public:
     virtual ~Delegate() {}
     virtual bool IsBluetoothAdapterAvailable() const = 0;
     virtual void GetAdapter(
         const device::BluetoothAdapterFactory::AdapterCallback& callback) = 0;
     virtual const std::vector<uint8_t>* GetServiceDataForUUID(
@@ skipping 37 matching lines @@
   const LocalDeviceDataProvider* local_device_data_provider_;
 
   bool is_initializing_adapter_;
   scoped_refptr<device::BluetoothAdapter> adapter_;
 
   bool is_initializing_discovery_session_;
   std::unique_ptr<device::BluetoothDiscoverySession> discovery_session_;
 
   std::vector<cryptauth::RemoteDevice> registered_remote_devices_;
 
-  base::ObserverList<Observer> observer_list_;
-
   base::WeakPtrFactory<BleScanner> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BleScanner);
 };
 
 }  // namespace tether
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_COMPONENTS_BLE_SCANNER_H_