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--- services/device/hid/hid_service_fido.h.orig 2022-10-28 16:39:00 UTC
+++ services/device/hid/hid_service_fido.h
@@ -0,0 +1,65 @@
+// Copyright 2014 The Chromium Authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef SERVICES_DEVICE_HID_HID_SERVICE_LINUX_H_
+#define SERVICES_DEVICE_HID_HID_SERVICE_LINUX_H_
+
+#include <memory>
+
+#include "base/compiler_specific.h"
+#include "base/files/scoped_file.h"
+#include "base/memory/weak_ptr.h"
+#include "base/task/sequenced_task_runner.h"
+#include "build/build_config.h"
+#include "build/chromeos_buildflags.h"
+#include "services/device/hid/hid_device_info.h"
+#include "services/device/hid/hid_service.h"
+
+namespace device {
+
+class HidServiceFido : public HidService {
+ public:
+ HidServiceFido();
+ HidServiceFido(HidServiceFido&) = delete;
+ HidServiceFido& operator=(HidServiceFido&) = delete;
+ ~HidServiceFido() override;
+
+ // HidService:
+ void Connect(const std::string& device_id,
+ bool allow_protected_reports,
+ bool allow_fido_reports,
+ ConnectCallback callback) override;
+ base::WeakPtr<HidService> GetWeakPtr() override;
+
+ private:
+ struct ConnectParams;
+ class BlockingTaskRunnerHelper;
+
+// These functions implement the process of locating, requesting access to and
+// opening a device. Because this operation crosses multiple threads these
+// functions are static and the necessary parameters are passed as a single
+// struct.
+#if BUILDFLAG(IS_CHROMEOS_ASH)
+ static void OnPathOpenComplete(std::unique_ptr<ConnectParams> params,
+ base::ScopedFD fd);
+ static void OnPathOpenError(const std::string& device_path,
+ ConnectCallback callback,
+ const std::string& error_name,
+ const std::string& error_message);
+#else
+ static void OpenOnBlockingThread(std::unique_ptr<ConnectParams> params);
+#endif
+ static void FinishOpen(std::unique_ptr<ConnectParams> params);
+
+ const scoped_refptr<base::SequencedTaskRunner> blocking_task_runner_;
+
+ // |helper_| lives on the sequence |blocking_task_runner_| posts to and holds
+ // a weak reference back to the service that owns it.
+ std::unique_ptr<BlockingTaskRunnerHelper, base::OnTaskRunnerDeleter> helper_;
+ base::WeakPtrFactory<HidServiceFido> weak_factory_{this};
+};
+
+} // namespace device
+
+#endif // SERVICES_DEVICE_HID_HID_SERVICE_LINUX_H_
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