device: Cleanup class/struct forward declarations

device/bluetooth/test/bluetooth_test_win.h

 // Copyright 2016 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_WIN_H_
 #define DEVICE_BLUETOOTH_TEST_BLUETOOTH_TEST_WIN_H_
 
 #include "device/bluetooth/test/bluetooth_test.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/test/test_pending_task.h"
 #include "base/test/test_simple_task_runner.h"
 #include "device/bluetooth/bluetooth_classic_win_fake.h"
 #include "device/bluetooth/bluetooth_low_energy_win_fake.h"
 #include "device/bluetooth/bluetooth_task_manager_win.h"
 
 namespace device {
 class BluetoothAdapterWin;
-class BluetoothRemoteGattCharacteristicWin;
 
 // Windows implementation of BluetoothTestBase.
 class BluetoothTestWin : public BluetoothTestBase,
                          public win::BluetoothLowEnergyWrapperFake::Observer {
  public:
   BluetoothTestWin();
   ~BluetoothTestWin() override;
 
   // BluetoothTestBase overrides
   bool PlatformSupportsLowEnergy() override;
@@ skipping 66 matching lines @@
   void ForceRefreshDevice();
   void FinishPendingTasks();
 };
 
 // Defines common test fixture name. Use TEST_F(BluetoothTest, YourTestName).
 typedef BluetoothTestWin BluetoothTest;
 
 }  // namespace device
 
 #endif  // DEVICE_BLUETOOTH_TEST_BLUETOOTH_TEST_WIN_H_