Network traffic annotation added to update_client.

components/update_client/url_fetcher_downloader.cc

 // Copyright 2014 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.
 
 #include "components/update_client/url_fetcher_downloader.h"
 
 #include <stdint.h>
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
 #include "base/sequenced_task_runner.h"
 #include "components/data_use_measurement/core/data_use_user_data.h"
 #include "components/update_client/utils.h"
 #include "net/base/load_flags.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "net/url_request/url_fetcher.h"
 #include "url/gurl.h"
 
 namespace update_client {
 
 UrlFetcherDownloader::UrlFetcherDownloader(
     std::unique_ptr<CrxDownloader> successor,
     net::URLRequestContextGetter* context_getter,
     const scoped_refptr<base::SequencedTaskRunner>& task_runner)
     : CrxDownloader(task_runner, std::move(successor)),
       context_getter_(context_getter),
       downloaded_bytes_(-1),
       total_bytes_(-1) {}
 
 UrlFetcherDownloader::~UrlFetcherDownloader() {
   DCHECK(thread_checker_.CalledOnValidThread());
 }
 
 void UrlFetcherDownloader::DoStartDownload(const GURL& url) {
   DCHECK(thread_checker_.CalledOnValidThread());
 
-  url_fetcher_ = net::URLFetcher::Create(0, url, net::URLFetcher::GET, this);
+  net::NetworkTrafficAnnotationTag traffic_annotation =
+      net::DefineNetworkTrafficAnnotation("...", R"(
+        semantics {
+          sender: "..."

[Sorin Jianu, 2017/04/19 21:40:39]

Component Updater

[Ramin Halavati, 2017/04/20 07:36:13]

Done.

+          description: "..."

[Sorin Jianu, 2017/04/19 21:40:39]

The component updater in Chrome is responsible for updating code and data
modules such as Flash, CrlSet, Origin Trials, etc. These modules are updated on
cycles independent of the Chrome release tracks.
It runs in the browser process and communicates with a set of servers
using the Omaha protocol to find the latest versions of components, download
them, and register them with the rest of Chrome.

[Ramin Halavati, 2017/04/20 07:36:13]

Done.

+          trigger: "..."

[Sorin Jianu, 2017/04/19 21:40:39]

Manual or automatic software updates.

[Ramin Halavati, 2017/04/20 07:36:13]

Done.

+          data: "..."

[Sorin Jianu, 2017/04/19 21:40:39]

A CRX representing the specific update payload.

[Ramin Halavati, 2017/04/20 07:36:13]

Done.

+          destination: WEBSITE/GOOGLE_OWNED_SERVICE/OTHER

[Sorin Jianu, 2017/04/19 21:40:39]

GOOGLE_OWNED_SERVICE

[Ramin Halavati, 2017/04/20 07:36:13]

Done.

+        }
+        policy {
+          cookies_allowed: false
+          setting: "..."

[Sorin Jianu, 2017/04/19 21:40:39]

This feature can't be disabled.

[Ramin Halavati, 2017/04/20 07:36:13]

Done.

+          chrome_policy {
+            [POLICY_NAME] {

[Sorin Jianu, 2017/04/19 21:40:39]

There is no policy associated with this feature.

[Ramin Halavati, 2017/04/20 07:36:13]

Done.

+              policy_options {mode: MANDATORY/RECOMMENDED/UNSET}
+              [POLICY_NAME]: ... //(value to disable it)
+            }
+          }
+          policy_exception_justification: "..."
+        })");
+  url_fetcher_ = net::URLFetcher::Create(0, url, net::URLFetcher::GET, this,
+                                         traffic_annotation);
   url_fetcher_->SetRequestContext(context_getter_);
   url_fetcher_->SetLoadFlags(net::LOAD_DO_NOT_SEND_COOKIES |
                              net::LOAD_DO_NOT_SAVE_COOKIES |
                              net::LOAD_DISABLE_CACHE);
   url_fetcher_->SetAutomaticallyRetryOn5xx(false);
   url_fetcher_->SaveResponseToTemporaryFile(task_runner());
   data_use_measurement::DataUseUserData::AttachToFetcher(
       url_fetcher_.get(), data_use_measurement::DataUseUserData::UPDATE_CLIENT);
 
   VLOG(1) << "Starting background download: " << url.spec();
@@ skipping 59 matching lines @@
   total_bytes_ = total;
 
   Result result;
   result.downloaded_bytes = downloaded_bytes_;
   result.total_bytes = total_bytes_;
 
   OnDownloadProgress(result);
 }
 
 }  // namespace update_client