Change getDevices to use a DeviceCallback.

chrome/browser/chromeos/bluetooth/bluetooth_device.h

 // Copyright (c) 2012 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 CHROME_BROWSER_CHROMEOS_BLUETOOTH_BLUETOOTH_DEVICE_H_
 #define CHROME_BROWSER_CHROMEOS_BLUETOOTH_BLUETOOTH_DEVICE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 183 matching lines @@
 
   // Indicates whether this device provides the given service.  |uuid| should
   // be in canonical form (see bluetooth_utils::CanonicalUuid).
   virtual bool ProvidesServiceWithUUID(const std::string& uuid) const;
 
   // The ProvidesServiceCallback is used by ProvidesServiceWithName to indicate
   // whether or not a matching service was found.
   typedef base::Callback<void(bool)> ProvidesServiceCallback;
 
   // Indicates whether this device provides the given service.
-  void ProvidesServiceWithName(const std::string& name,
-                               const ProvidesServiceCallback& callback);
+  virtual void ProvidesServiceWithName(const std::string& name,
+                                       const ProvidesServiceCallback& callback);
 
   // Indicates whether the device is currently pairing and expecting a
   // PIN Code to be returned.
   bool ExpectingPinCode() const { return !pincode_callback_.is_null(); }
 
   // Indicates whether the device is currently pairing and expecting a
   // Passkey to be returned.
   bool ExpectingPasskey() const { return !passkey_callback_.is_null(); }
 
   // Indicates whether the device is currently pairing and expecting
@@ skipping 389 matching lines @@
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<BluetoothDevice> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothDevice);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_BLUETOOTH_BLUETOOTH_DEVICE_H_