webkit/appcache/appcache_histograms.h

// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef WEBKIT_APPCACHE_APPCACHE_HISTOGRAMS_H_
#define WEBKIT_APPCACHE_APPCACHE_HISTOGRAMS_H_

#include "base/basictypes.h"

namespace base {
class TimeDelta;
}

namespace appcache {

class AppCacheHistograms {
 public:
  enum InitResultType {
    INIT_OK, SQL_DATABASE_ERROR, DISK_CACHE_ERROR,
    NUM_INIT_RESULT_TYPES
  };
  static void CountInitResult(InitResultType init_result);

  enum CheckResponseResultType {
    RESPONSE_OK, MANIFEST_OUT_OF_DATE, RESPONSE_OUT_OF_DATE, ENTRY_NOT_FOUND,
    READ_HEADERS_ERROR, READ_DATA_ERROR, UNEXPECTED_DATA_SIZE, CHECK_CANCELED,
    NUM_CHECK_RESPONSE_RESULT_TYPES
  };
  static void CountCheckResponseResult(CheckResponseResultType result);

  static void AddTaskQueueTimeSample(const base::TimeDelta& duration);
  static void AddTaskRunTimeSample(const base::TimeDelta& duration);
  static void AddCompletionQueueTimeSample(const base::TimeDelta& duration);
  static void AddCompletionRunTimeSample(const base::TimeDelta& duration);

  static void AddMissingManifestEntrySample();

  enum MissingManifestCallsiteType {
    CALLSITE_0, CALLSITE_1, CALLSITE_2, CALLSITE_3,
    NUM_MISSING_MANIFEST_CALLSITE_TYPES
  };
  static void AddMissingManifestDetectedAtCallsite(
      MissingManifestCallsiteType type);

 private:
  DISALLOW_IMPLICIT_CONSTRUCTORS(AppCacheHistograms);
};

}  // namespace appcache

#endif  // WEBKIT_APPCACHE_APPCACHE_HISTOGRAMS_H_