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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef BASE_TRACE_EVENT_BASE_TRACING_FORWARD_H_
#define BASE_TRACE_EVENT_BASE_TRACING_FORWARD_H_
// Proxy header that provides //base code access to forward-declarations for
// classes and functions defined in base_tracing.h.
#include "base/tracing_buildflags.h"
#if BUILDFLAG(ENABLE_BASE_TRACING)
#include "third_party/perfetto/include/perfetto/tracing/traced_value_forward.h" // nogncheck
#else
namespace perfetto {
class TracedValue;
template <typename T>
void WriteIntoTracedValue(TracedValue context, T&& value);
template <typename T, class = void>
struct TraceFormatTraits;
template <typename T, typename ResultType = void, class = void>
struct check_traced_value_support {
static constexpr bool value = true;
using type = ResultType;
};
} // namespace perfetto
#endif // !BUILDFLAG(ENABLE_BASE_TRACING)
namespace base {
namespace trace_event {
class ConvertableToTraceFormat;
class TracedValue;
} // namespace trace_event
} // namespace base
#endif // BASE_TRACE_EVENT_BASE_TRACING_FORWARD_H_
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