chromium/components/no_state_prefetch/common/no_state_prefetch_origin.h

// Copyright 2012 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_NO_STATE_PREFETCH_COMMON_NO_STATE_PREFETCH_ORIGIN_H_
#define COMPONENTS_NO_STATE_PREFETCH_COMMON_NO_STATE_PREFETCH_ORIGIN_H_

namespace prerender {

// Origin indicates what caused the NoStatePrefetch.
// NOTE: New values need to be appended, since they are used in histograms.

// These values are persisted to logs. Entries should not be renumbered and
// numeric values should never be reused. The values should remain
// synchronized with the enum PrerenderOrigin in
// //tools/metrics/histograms/enums.xml.
enum Origin { … };

// Return a human-readable name for |origin|.
const char* NameFromOrigin(Origin origin);

}  // namespace prerender

#endif  // COMPONENTS_NO_STATE_PREFETCH_COMMON_NO_STATE_PREFETCH_ORIGIN_H_