Refactor bluetooth_task_manager_win to prepare for new Bluetooth test fixture

device/bluetooth/bluetooth_classic_win.h

Index: device/bluetooth/bluetooth_classic_win.h
diff --git a/device/bluetooth/bluetooth_classic_win.h b/device/bluetooth/bluetooth_classic_win.h
new file mode 100644
index 0000000000000000000000000000000000000000..382b79fe71340214f470d5b8769cf0d1d0debb5f
--- /dev/null
+++ b/device/bluetooth/bluetooth_classic_win.h
@@ -0,0 +1,47 @@
+// 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_BLUETOOTH_CLASSIC_WIN_H_
+#define DEVICE_BLUETOOTH_BLUETOOTH_CLASSIC_WIN_H_
+
+#include "device/bluetooth/bluetooth_export.h"
+#include "device/bluetooth/bluetooth_init_win.h"
+
+namespace device {
+namespace win {
+
+// Wraps Windows APIs used to access local Bluetooth radios and classic
+// Bluetooth devices, providing an interface that can be replaced with fakes in
+// tests.
+class DEVICE_BLUETOOTH_EXPORT BluetoothClassicWrapper {
+ public:
+  static BluetoothClassicWrapper* GetInstance();
+  static void DeleteInstance();
+  static void SetInstanceForTest(BluetoothClassicWrapper* instance);
+
+  virtual HBLUETOOTH_RADIO_FIND BTFindFirstRadio(
+      const BLUETOOTH_FIND_RADIO_PARAMS* params,
+      HANDLE* out_handle);
+  virtual DWORD BTGetRadioInfo(HANDLE handle,
+                               PBLUETOOTH_RADIO_INFO out_radio_info);
+  virtual BOOL BTFindRadioClose(HBLUETOOTH_RADIO_FIND handle);
+  virtual BOOL BTIsConnectable(HANDLE handle);
+  virtual HBLUETOOTH_DEVICE_FIND BTFindFirstDevice(
+      const BLUETOOTH_DEVICE_SEARCH_PARAMS* params,
+      BLUETOOTH_DEVICE_INFO* out_device_info);
+  virtual BOOL BTFindNextDevice(HBLUETOOTH_DEVICE_FIND handle,
+                                BLUETOOTH_DEVICE_INFO* out_device_info);
+  virtual BOOL BTFindDeviceClose(HBLUETOOTH_DEVICE_FIND handle);
+  virtual BOOL BTEnableDiscovery(HANDLE handle, BOOL is_enable);
+  virtual BOOL BTEnableIncomingConnections(HANDLE handle, BOOL is_enable);
+
+ protected:
+  BluetoothClassicWrapper();
+  virtual ~BluetoothClassicWrapper();
+};
+
+}  // namespace win
+}  // namespace device
+
+#endif  // DEVICE_BLUETOOTH_BLUETOOTH_CLASSIC_WIN_H_