Hook up RSSI and host transmit power Bluetooth device properties for ChromeOS.

device/bluetooth/bluetooth_device_chromeos.h

 // Copyright 2013 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_DEVICE_CHROMEOS_H
 #define DEVICE_BLUETOOTH_BLUETOOTH_DEVICE_CHROMEOS_H
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
@@ skipping 128 matching lines @@
   void OnCancelPairingError(const std::string& error_name,
                             const std::string& error_message);
 
   // Internal method to set the device as trusted. Trusted devices can connect
   // to us automatically, and we can connect to them after rebooting; it also
   // causes the device to be remembered by the stack even if not paired.
   // |success| to the callback indicates whether or not the request succeeded.
   void SetTrusted();
   void OnSetTrusted(bool success);
 
+  // Internal method to enable the connection monitor when connecting to this
+  // device. The connection monitor mode tracks the connection RSSI and TX
+  // power of the connection.
+  void StartConnectionMonitor();
+  void OnStartConnectionMonitor();
+  void OnStartConnectionMonitorError(const std::string& error_name,
+                                     const std::string& error_message);
+
   // Called by dbus:: on completion of the D-Bus method call to disconnect the
   // device.
   void OnDisconnect(const base::Closure& callback);
   void OnDisconnectError(const ErrorCallback& error_callback,
                          const std::string& error_name,
                          const std::string& error_message);
 
   // Called by dbus:: on failure of the D-Bus method call to unpair the device;
   // there is no matching completion call since this object is deleted in the
   // process of unpairing.
@@ skipping 19 matching lines @@
 
   // The dbus object path of the device object.
   dbus::ObjectPath object_path_;
 
   // List of observers interested in event notifications from us.
   ObserverList<device::BluetoothDevice::Observer> observers_;
 
   // Number of ongoing calls to Connect().
   int num_connecting_calls_;
 
+  // True if the connection monitor has been started, tracking the connection
+  // RSSI and TX power.
+  bool connection_monitor_started_;
+
   // UI thread task runner and socket thread object used to create sockets.
   scoped_refptr<base::SequencedTaskRunner> ui_task_runner_;
   scoped_refptr<device::BluetoothSocketThread> socket_thread_;
 
   // During pairing this is set to an object that we don't own, but on which
   // we can make method calls to request, display or confirm PIN Codes and
   // Passkeys. Generally it is the object that owns this one.
   scoped_ptr<BluetoothPairingChromeOS> pairing_;
 
   // 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<BluetoothDeviceChromeOS> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(BluetoothDeviceChromeOS);
 };
 
 }  // namespace chromeos
 
 #endif  // DEVICE_BLUETOOTH_BLUETOOTH_DEVICE_CHROMEOS_H