Add bluetooth callbacks for fetching paired devices and stopping device discovery.

chrome/browser/ui/webui/options2/chromeos/bluetooth_options_handler2.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_UI_WEBUI_OPTIONS2_CHROMEOS_BLUETOOTH_OPTIONS_HANDLER2_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_BLUETOOTH_OPTIONS_HANDLER2_H_
 #pragma once
 
 #include <string>
 
@@ skipping 43 matching lines @@
   // |args| will be an empty list.
   void FindDevicesCallback(const base::ListValue* args);
 
   // Called when the user requests to connect to or disconnect from a Bluetooth
   // device.
   // |args| will be a list containing two or three arguments, the first argument
   // is the device ID and the second is the requested action.  If a third
   // argument is present, it is the passkey for pairing confirmation.
   void UpdateDeviceCallback(const base::ListValue* args);
 
+  // Called when the "Add a device" dialog closes to stop the discovery
+  // process.
+  // |args| will be an empty list.
+  void StopDiscoveryCallback(const base::ListValue* args);
+
+  // Called when the list of paired devices is initialized in order to
+  // populate the list.
+  // |args| will be an empty list.
+  void GetPairedDevicesCallback(const base::ListValue* args);
+
   // Sends a notification to the Web UI of the status of a Bluetooth device.
   // |device| is the Bluetooth device.
   // |params| is an optional set of parameters.
   void SendDeviceNotification(chromeos::BluetoothDevice* device,
                               base::DictionaryValue* params);
 
   // Displays a passkey for a device, requesting user confirmation that the
   // key matches an expected value (value displayed on a smartphone for
   // example).
   // |device| is the Bluetooth device being paired.
@@ skipping 68 matching lines @@
   // The empty string represents "none".
   std::string default_adapter_id_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothOptionsHandler);
 };
 
 }  // namespace options2
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CHROMEOS_BLUETOOTH_OPTIONS_HANDLER2_H_