components/arc: implement multi advertising

device/bluetooth/dbus/fake_bluetooth_le_advertising_manager_client.h

 // Copyright 2015 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_DBUS_FAKE_BLUETOOTH_LE_ADVERTISING_MANAGER_CLIENT_H_
 #define DEVICE_BLUETOOTH_DBUS_FAKE_BLUETOOTH_LE_ADVERTISING_MANAGER_CLIENT_H_
 
 #include <map>
 #include <string>
 
@@ skipping 43 matching lines @@
                               const ErrorCallback& error_callback) override;
 
   // Register, unregister and retrieve pointers to profile server providers.
   void RegisterAdvertisementServiceProvider(
       FakeBluetoothLEAdvertisementServiceProvider* service_provider);
   void UnregisterAdvertisementServiceProvider(
       FakeBluetoothLEAdvertisementServiceProvider* service_provider);
   FakeBluetoothLEAdvertisementServiceProvider* GetAdvertisementServiceProvider(
       const std::string& uuid);
 
+  bool currently_registered() { return !currently_registered_.value().empty(); }
+
  private:
   // Map of a D-Bus object path to the FakeBluetoothAdvertisementServiceProvider
   // registered for it; maintained by RegisterAdvertisementServiceProvider() and
   // UnregisterProfileServiceProvicer() called by the constructor and
   // destructor of FakeBluetoothAdvertisementServiceProvider.
   typedef std::map<dbus::ObjectPath,
                    FakeBluetoothLEAdvertisementServiceProvider*>
       ServiceProviderMap;
   ServiceProviderMap service_provider_map_;
 
   // Holds the currently registered advertisement. If there is no advertisement
   // registered, this path is empty.
   dbus::ObjectPath currently_registered_;
 
   DISALLOW_COPY_AND_ASSIGN(FakeBluetoothLEAdvertisingManagerClient);
 };
 
 }  // namespace bluez
 
 #endif  // DEVICE_BLUETOOTH_DBUS_FAKE_BLUETOOTH_LE_ADVERTISING_MANAGER_CLIENT_H_