chromium/extensions/browser/extension_event_histogram_value.h

// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef EXTENSIONS_BROWSER_EXTENSION_EVENT_HISTOGRAM_VALUE_H_
#define EXTENSIONS_BROWSER_EXTENSION_EVENT_HISTOGRAM_VALUE_H_

namespace extensions {
namespace events {

// Short version:
//  *Never* reorder or delete entries in the |HistogramValue| enumeration.
//  When creating a new extension event, add a new `ENUM = <value>` entry at
//  the end of the list, just prior to ENUM_BOUNDARY.
//
// Long version: See extension_function_histogram_value.h
enum HistogramValue { … };

}  // namespace events
}  // namespace extensions

#endif  // EXTENSIONS_BROWSER_EXTENSION_EVENT_HISTOGRAM_VALUE_H_