components/precache/core/proto/precache.proto

// Copyright 2013 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.

syntax = "proto2";

package precache;

// Chrome requires this.
option optimize_for = LITE_RUNTIME;

// Information about a cacheable resource to be precached.
message PrecacheResource {
  // The URL of the resource. This field must always be present.
  optional string url = 1;
};

// A manifest of cacheable resources to be precached for a specific starting
// URL.
message PrecacheManifest {
  // List of resources that we predict that the user will need if they are
  // likely to fetch the starting URL.
  repeated PrecacheResource resource = 1;
};

message PrecacheConfigurationSettings {
  // The maximum rank of the user's most visited URLs to consider precaching
  // resources for, starting from 1. For example, a value of 10 means that only
  // URLs that are in the user's top 10 most visited URLs will be considered as
  // starting URLs for resource precaching. This is specified by the server for
  // testing purposes, so that it's easy to adjust how aggressively resources
  // are precached.
  // Values that are zero or lower indicate that none of the user's top sites
  // will be used for precaching.
  optional int64 top_sites_count = 1 [default = 10];

  // List of additional starting URLs that resources will be precached for.
  // These are URLs that the server predicts that the user will visit, as a
  // result of server-side analytics.
  repeated string forced_starting_url = 2;
};