chrome: bluetooth: hook up DeviceCreated/Removed signals

chrome/browser/chromeos/dbus/bluetooth_adapter_client.h

Index: chrome/browser/chromeos/dbus/bluetooth_adapter_client.h
diff --git a/chrome/browser/chromeos/dbus/bluetooth_adapter_client.h b/chrome/browser/chromeos/dbus/bluetooth_adapter_client.h
index 73aaee2bf3bdf8d32c2b3cd05eb482ceb3d47ac4..10056683f5dbb200651a796288367e24c8889791 100644
--- a/chrome/browser/chromeos/dbus/bluetooth_adapter_client.h
+++ b/chrome/browser/chromeos/dbus/bluetooth_adapter_client.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2011 The Chromium Authors. All rights reserved.
+// 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.
 
@@ -27,6 +27,14 @@ class BluetoothAdapterClient {
    public:
     virtual ~Observer() {}
 
+    // Called when a new known device has been created.
+    virtual void DeviceCreated(const std::string& object_path,
+                               const std::string& device_path) {}
+
+    // Called when a previously known device is removed.
+    virtual void DeviceRemoved(const std::string& object_path,
+                               const std::string& device_path) {}
+
     // Called when the adapter's Discovering property changes.
     virtual void DiscoveringPropertyChanged(const std::string& object_path,
                                             bool discovering) {}