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diff --git a/tools/profiler/public/ProfilerUtils.h b/tools/profiler/public/ProfilerUtils.h
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+++ b/tools/profiler/public/ProfilerUtils.h
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+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef ProfilerUtils_h
+#define ProfilerUtils_h
+
+// This header contains most process- and thread-related functions.
+// It is safe to include unconditionally.
+
+#include "mozilla/BaseProfilerUtils.h"
+
+using ProfilerProcessId = mozilla::baseprofiler::BaseProfilerProcessId;
+using ProfilerThreadId = mozilla::baseprofiler::BaseProfilerThreadId;
+
+// Get the current process's ID.
+[[nodiscard]] ProfilerProcessId profiler_current_process_id();
+
+// Get the current thread's ID.
+[[nodiscard]] ProfilerThreadId profiler_current_thread_id();
+
+// Must be called at least once from the main thread, before any other main-
+// thread id function.
+void profiler_init_main_thread_id();
+
+[[nodiscard]] ProfilerThreadId profiler_main_thread_id();
+
+[[nodiscard]] bool profiler_is_main_thread();
+
+#endif  // ProfilerUtils_h