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// Copyright 2019 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_VIZ_COMMON_RESOURCES_PEAK_GPU_MEMORY_TRACKER_H_
#define COMPONENTS_VIZ_COMMON_RESOURCES_PEAK_GPU_MEMORY_TRACKER_H_
#include "components/viz/common/viz_common_export.h"
namespace viz {
// Tracks the peak memory of the GPU service for its lifetime. Upon its
// destruction a report will be requested from the GPU service. The peak will be
// reported to UMA Histograms.
//
// If the GPU is lost during this objects lifetime, there will be no
// corresponding report of usage. The same for if there is never a successful
// GPU connection.
//
// See `content::PeakGpuMemoryTrackerFactory::Create` for creation of
// PeakGpuMemoryTracker in the browser process.
class VIZ_COMMON_EXPORT PeakGpuMemoryTracker {
public:
// The type of user interaction, for which the GPU Peak Memory Usage is being
// observed.
enum class Usage {
CHANGE_TAB,
PAGE_LOAD,
SCROLL,
USAGE_MAX = SCROLL,
};
virtual ~PeakGpuMemoryTracker() = default;
// Invalidates this tracker, no UMA Histogram report is generated.
virtual void Cancel() = 0;
};
} // namespace viz
#endif // COMPONENTS_VIZ_COMMON_RESOURCES_PEAK_GPU_MEMORY_TRACKER_H_
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