Network traffic annotation added to sync.

components/sync/engine_impl/attachments/attachment_uploader_impl.cc

Index: components/sync/engine_impl/attachments/attachment_uploader_impl.cc
diff --git a/components/sync/engine_impl/attachments/attachment_uploader_impl.cc b/components/sync/engine_impl/attachments/attachment_uploader_impl.cc
index b0249ec76854d392e6fe081f000b959c65b78b93..7ff3d63b1072667ab7dbca4fc40e333997c4dda7 100644
--- a/components/sync/engine_impl/attachments/attachment_uploader_impl.cc
+++ b/components/sync/engine_impl/attachments/attachment_uploader_impl.cc
@@ -24,6 +24,7 @@
 #include "google_apis/gaia/gaia_constants.h"
 #include "net/base/load_flags.h"
 #include "net/http/http_status_code.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_fetcher_delegate.h"
 #include "net/url_request/url_request_status.h"
@@ -214,7 +215,35 @@ void AttachmentUploaderImpl::UploadState::OnGetTokenSuccess(
   DCHECK_EQ(access_token_request_.get(), request);
   access_token_request_.reset();
   access_token_ = access_token;
-  fetcher_ = net::URLFetcher::Create(upload_url_, net::URLFetcher::POST, this);
+  net::NetworkTrafficAnnotationTag traffic_annotation =
+      net::DefineNetworkTrafficAnnotation("sync_attachment_uploader", R"(
+        semantics {
+          sender: "Chrome Sync"
+          description:
+            "Chrome Sync synchronizes profile data between Chromium clients "
+            "and Google for a given user account."
+          trigger:
+            "User makes a change to syncable profile data after enabling sync "
+            "on the device."
+          data:
+            "The device and user identifiers, along with any profile data that "
+            "is changing."
+          destination: GOOGLE_OWNED_SERVICE
+        }
+        policy {
+          cookies_allowed: false
+          setting:
+            "Users can disable Chrome Sync by going into the profile settings "
+            "and choosing to Sign Out."
+          chrome_policy {
+            SyncDisabled {
+              policy_options {mode: MANDATORY}
+              SyncDisabled: true
+            }
+          }
+        })");
+  fetcher_ = net::URLFetcher::Create(upload_url_, net::URLFetcher::POST, this,
+                                     traffic_annotation);
   ConfigureURLFetcherCommon(fetcher_.get(), access_token_, raw_store_birthday_,
                             model_type_, url_request_context_getter_.get());
   data_use_measurement::DataUseUserData::AttachToFetcher(