bluetoothLowEnergy: Send onServiceAdded after all characteristics are discovered

chromeos/dbus/bluetooth_gatt_characteristic_client.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 CHROMEOS_DBUS_BLUETOOTH_GATT_CHARACTERISTIC_CLIENT_H_
 #define CHROMEOS_DBUS_BLUETOOTH_GATT_CHARACTERISTIC_CLIENT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 12 matching lines @@
   // Structure of properties associated with GATT characteristics.
   struct Properties : public dbus::PropertySet {
     // The 128-bit characteristic UUID. [read-only]
     dbus::Property<std::string> uuid;
 
     // Object path of the GATT service the characteristic belongs to.
     // [read-only]
     dbus::Property<dbus::ObjectPath> service;
 
     // Whether or not this characteristic is currently sending ValueUpdated
-    // signals.
+    // signals. [read-only]
     dbus::Property<bool> notifying;
 
     // List of flags representing the GATT "Characteristic Properties bit field"
     // and properties read from the GATT "Characteristic Extended Properties"
     // descriptor bit field. [read-only, optional]
     dbus::Property<std::vector<std::string> > flags;
 
+    // Array of object paths representing the descriptors of this
+    // characteristic. [read-only]
+    dbus::Property<std::vector<dbus::ObjectPath> > descriptors;
+
     Properties(dbus::ObjectProxy* object_proxy,
                const std::string& interface_name,
                const PropertyChangedCallback& callback);
     virtual ~Properties();
   };
 
   // Interface for observing changes from a remote GATT characteristic.
   class Observer {
    public:
     virtual ~Observer() {}
@@ skipping 80 matching lines @@
  protected:
   BluetoothGattCharacteristicClient();
 
  private:
   DISALLOW_COPY_AND_ASSIGN(BluetoothGattCharacteristicClient);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROMEOS_DBUS_BLUETOOTH_GATT_CHARACTERISTIC_CLIENT_H_