Improve processing of Bluetooth device discovery on Windows.

device/bluetooth/bluetooth_low_energy_win.h

 // Copyright 2014 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_WIN_H_
 #define DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
@@ skipping 84 matching lines @@
 // Enumerates the list of known (i.e. already paired) Bluetooth LE devices on
 // this machine. In case of error, returns false and sets |error| with an error
 // message describing the problem.
 // Note: This function returns an error if Bluetooth Low Energy is not supported
 // on this Windows platform.
 bool EnumerateKnownBluetoothLowEnergyDevices(
     ScopedVector<BluetoothLowEnergyDeviceInfo>* devices,
     std::string* error);
 
 // Enumerates the list of known (i.e. cached) GATT services for a given
-// Bluetooth LE device |device_info| into |services|. In case of error, returns
+// Bluetooth LE device |device_path| into |services|. In case of error, returns
 // false and sets |error| with an error message describing the problem. Note:
 // This function returns an error if Bluetooth Low Energy is not supported on
 // this Windows platform.
 bool EnumerateKnownBluetoothLowEnergyServices(
-    BluetoothLowEnergyDeviceInfo* device_info,
+    const base::FilePath& device_path,
     ScopedVector<BluetoothLowEnergyServiceInfo>* services,
     std::string* error);
 
 bool ExtractBluetoothAddressFromDeviceInstanceIdForTesting(
     const std::string& instance_id,
     BLUETOOTH_ADDRESS* btha,
     std::string* error);
 
 }  // namespace win
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_LOW_ENERGY_WIN_H_