Network traffic annotation added to chrome::BitmapFetcher.

chrome/browser/ui/omnibox/chrome_omnibox_client.cc

Index: chrome/browser/ui/omnibox/chrome_omnibox_client.cc
diff --git a/chrome/browser/ui/omnibox/chrome_omnibox_client.cc b/chrome/browser/ui/omnibox/chrome_omnibox_client.cc
index 3e12199b9ce6e01a39cd809637a45215c28636ef..f9e22ed7d033385d55709dff911bc3f9411dadd4 100644
--- a/chrome/browser/ui/omnibox/chrome_omnibox_client.cc
+++ b/chrome/browser/ui/omnibox/chrome_omnibox_client.cc
@@ -48,6 +48,7 @@
 #include "content/public/browser/navigation_entry.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/common/constants.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/window_open_disposition.h"
 #include "url/gurl.h"
@@ -289,11 +290,32 @@ void ChromeOmniboxClient::OnResultChanged(
         BitmapFetcherServiceFactory::GetForBrowserContext(profile_);
     if (image_service) {
       image_service->CancelRequest(request_id_);
+      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}
+                    value: ...
+                }
+              }
+            })");
       request_id_ = image_service->RequestImage(
           match->answer->second_line().image_url(),
           new AnswerImageObserver(
               base::Bind(&ChromeOmniboxClient::OnBitmapFetched,
-                         base::Unretained(this), on_bitmap_fetched)));
+                         base::Unretained(this), on_bitmap_fetched)),
+          traffic_annotation);
     }
   }
 }