chrome/browser/predictors/resource_prefetch_predictor.proto

// Copyright 2016 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.

// Protocol buffers used for storing in SQLite.
// CAUTION: When any change is done here, bump kDatabaseVersion in
//          resource_prefetch_predictor_tables.h.

syntax = "proto2";

package predictors;

// Required in Chrome.
option optimize_for = LITE_RUNTIME;

// Represents a single redirect chain endpoint.
message RedirectStat {
  // Represents the host for RedirectData in a host-based table.
  optional string url = 1;
  optional uint32 number_of_hits = 2;
  optional uint32 number_of_misses = 3;
  optional uint32 consecutive_misses = 4;
}

// Represents a mapping from URL or host to a list of redirect endpoints.
message RedirectData {
  // Main frame URL or host.
  optional string primary_key = 1;
  optional uint64 last_visit_time = 2;
  repeated RedirectStat redirect_endpoints = 3;
}

// Historical data for a single origin accessed from a host.
message OriginStat {
  optional string origin = 1;
  optional uint32 number_of_hits = 2;
  optional uint32 number_of_misses = 3;
  optional uint32 consecutive_misses = 4;
  optional double average_position = 5;
  optional bool always_access_network = 6;
  optional bool accessed_network = 7;
}

// Collection of origins accessed from a host.
message OriginData {
  optional string host = 1;
  optional uint64 last_visit_time = 2;
  repeated OriginStat origins = 3;
}