Network traffic annotation added to sync.

components/sync/engine_impl/attachments/attachment_downloader_impl.cc

Index: components/sync/engine_impl/attachments/attachment_downloader_impl.cc
diff --git a/components/sync/engine_impl/attachments/attachment_downloader_impl.cc b/components/sync/engine_impl/attachments/attachment_downloader_impl.cc
index 73be92992e868792874b43771b3fbb23d54e179d..c7b64fc0f354eaa5990ccb1a4bf87b491112bf85 100644
--- a/components/sync/engine_impl/attachments/attachment_downloader_impl.cc
+++ b/components/sync/engine_impl/attachments/attachment_downloader_impl.cc
@@ -25,6 +25,7 @@
 #include "net/http/http_response_headers.h"
 #include "net/http/http_status_code.h"
 #include "net/http/http_util.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "net/url_request/url_fetcher.h"
 #include "net/url_request/url_request_status.h"
 
@@ -214,8 +215,29 @@ void AttachmentDownloaderImpl::OnURLFetchComplete(
 std::unique_ptr<net::URLFetcher> AttachmentDownloaderImpl::CreateFetcher(
     const AttachmentUrl& url,
     const std::string& access_token) {
-  std::unique_ptr<net::URLFetcher> url_fetcher =
-      net::URLFetcher::Create(GURL(url), net::URLFetcher::GET, this);
+  net::NetworkTrafficAnnotationTag traffic_annotation =
+      net::DefineNetworkTrafficAnnotation("...", R"(

[Nicolas Zea, 2017/03/03 22:39:56]

same as the http bridge

[Ramin Halavati, 2017/03/06 06:55:45]

Done.

+        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}
+              value: ...
+            }
+          }
+          policy_exception_justification: "..."
+        })");
+  std::unique_ptr<net::URLFetcher> url_fetcher = net::URLFetcher::Create(
+      GURL(url), net::URLFetcher::GET, this, traffic_annotation);
   AttachmentUploaderImpl::ConfigureURLFetcherCommon(
       url_fetcher.get(), access_token, raw_store_birthday_, model_type_,
       url_request_context_getter_.get());