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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_INSTRUMENTATION_TRACING_TRACE_EVENT_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_INSTRUMENTATION_TRACING_TRACE_EVENT_H_
#include "base/time/time.h"
#include "base/trace_event/trace_event.h"
#include "third_party/blink/renderer/platform/platform_export.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
namespace blink {
namespace trace_event {
using base::trace_event::TraceScopedTrackableObject;
using AsyncEnabledStateObserver =
base::trace_event::TraceLog::AsyncEnabledStateObserver;
using EnabledStateObserver = base::trace_event::TraceLog::EnabledStateObserver;
inline base::TimeTicks ToTraceTimestamp(double seconds) {
return base::TimeTicks() + base::Seconds(seconds);
}
// This is to avoid error of passing a chromium time internal value.
void ToTraceTimestamp(int64_t);
PLATFORM_EXPORT void EnableTracing(const String& category_filter);
PLATFORM_EXPORT void DisableTracing();
PLATFORM_EXPORT void AddAsyncEnabledStateObserver(
base::WeakPtr<AsyncEnabledStateObserver>);
PLATFORM_EXPORT void RemoveAsyncEnabledStateObserver(
AsyncEnabledStateObserver*);
PLATFORM_EXPORT void AddEnabledStateObserver(EnabledStateObserver*);
PLATFORM_EXPORT void RemoveEnabledStateObserver(EnabledStateObserver*);
} // namespace trace_event
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_INSTRUMENTATION_TRACING_TRACE_EVENT_H_
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