Network traffic annotation added to remoting/host.

remoting/host/dns_blackhole_checker.cc

Index: remoting/host/dns_blackhole_checker.cc
diff --git a/remoting/host/dns_blackhole_checker.cc b/remoting/host/dns_blackhole_checker.cc
index 1f71ad5200b1265440409b7cb427f6faa543821b..d01558c3df56282237035ed23efa876b2a425dcd 100644
--- a/remoting/host/dns_blackhole_checker.cc
+++ b/remoting/host/dns_blackhole_checker.cc
@@ -5,6 +5,7 @@
 #include "remoting/host/dns_blackhole_checker.h"
 
 #include "base/callback_helpers.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_context_getter.h"
 #include "remoting/base/logging.h"
@@ -58,8 +59,29 @@ void DnsBlackholeChecker::CheckForDnsBlackhole(
     }
     talkgadget_url += kTalkGadgetUrl;
     HOST_LOG << "Verifying connection to " << talkgadget_url;
-    url_fetcher_ = net::URLFetcher::Create(GURL(talkgadget_url),
-                                           net::URLFetcher::GET, this);
+    net::NetworkTrafficAnnotationTag traffic_annotation =
+        net::DefineNetworkTrafficAnnotation("...", R"(
+          semantics {
+            sender: "..."
+            description: "..."
+            trigger: "..."
+            data: "..."
+            destination: WEBSITE/GOOGLE_OWNED_SERVICE/OTHER
+          }
+          policy {
+            cookies_allowed: false/true
+            cookies_store: "..."
+            setting: "..."
+            policy {
+              [POLICY_NAME] {
+                policy_options {mode: MANDATORY/RECOMMENDED/UNSET}
+                [POLICY_NAME]: ... //(value to disable it)
+              }
+            }
+            policy_exception_justification: "..."
+          })");
+    url_fetcher_ = net::URLFetcher::Create(
+        GURL(talkgadget_url), net::URLFetcher::GET, this, traffic_annotation);
     url_fetcher_->SetRequestContext(url_request_context_getter_.get());
     url_fetcher_->Start();
   } else {