Revert of Add support in Chrome to send notifications to a specific device.

device/bluetooth/test/bluetooth_test_bluez.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_TEST_BLUETOOTH_TEST_BLUEZ_H_
 #define DEVICE_BLUETOOTH_TEST_BLUETOOTH_TEST_BLUEZ_H_
 
 #include <cstdint>
 #include <vector>
 
@@ skipping 41 matching lines @@
       const base::Closure& error_callback) override;
   void SimulateLocalGattDescriptorValueWriteRequest(
       BluetoothDevice* from_device,
       BluetoothLocalGattDescriptor* descriptor,
       const std::vector<uint8_t>& value_to_write,
       const base::Closure& success_callback,
       const base::Closure& error_callback) override;
   bool SimulateLocalGattCharacteristicNotificationsRequest(
       BluetoothLocalGattCharacteristic* characteristic,
       bool start) override;
-  NotificationType LastNotifactionValueForCharacteristic(
+  std::vector<uint8_t> LastNotifactionValueForCharacteristic(
       BluetoothLocalGattCharacteristic* characteristic) override;
   std::vector<BluetoothLocalGattService*> RegisteredGattServices() override;
 
  private:
   bluez::FakeBluetoothDeviceClient* fake_bluetooth_device_client_;
 };
 
 // Defines common test fixture name. Use TEST_F(BluetoothTest, YourTestName).
 using BluetoothTest = BluetoothTestBlueZ;
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_TEST_BLUETOOTH_TEST_BLUEZ_H_