| // Copyright 2017 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 ukm; |
| |
| option optimize_for = LITE_RUNTIME; |
| |
| // Source contains data related to a top-level navigation. |
| // Next tag: 5 |
| message Source { |
| // A identifier for the source. This should be unique even across sessions. |
| optional int32 id = 1; |
| |
| // The url of the source, as recorded in history. If this URL has not been |
| // discovered by Google's crawler, it must be stripped to the security origin |
| // before recording to logs. If the security origin has not been discovered |
| // by the crawler, the security origin must not be logged. |
| optional string url = 2; |
| |
| // Timestamp of navigation to this Source, as seen by the client. Time of |
| // events related to this Source will generally be relative to this timestamp. |
| optional int64 navigation_time_msec = 3; |
| |
| // Time between navigation and the first contentful paint, in milliseconds. |
| optional int64 first_contentful_paint_msec = 4; |
| } |