Network traffic annotation added to image_data_fetcher.

components/favicon/core/large_icon_service.cc

Index: components/favicon/core/large_icon_service.cc
diff --git a/components/favicon/core/large_icon_service.cc b/components/favicon/core/large_icon_service.cc
index bf94e5b38ea09f0ccbe059df76ed3984f6c62e80..87f25d77b56086780d0e217bd430b5e1d570973b 100644
--- a/components/favicon/core/large_icon_service.cc
+++ b/components/favicon/core/large_icon_service.cc
@@ -339,10 +339,32 @@ void LargeIconService::
 
   image_fetcher_->SetDataUseServiceName(
       data_use_measurement::DataUseUserData::LARGE_ICON_SERVICE);
+  net::NetworkTrafficAnnotationTag traffic_annotation =
+      net::DefineNetworkTrafficAnnotation("...", R"(
+        semantics {
+          sender: "..."
+          description: "..."
+          trigger: "..."
+          data: "..."
+          destination: WEBSITE/GOOGLE_OWNED_SERVICE/OTHER/LOCAL
+        }
+        policy {
+          cookies_allowed: false/true
+          cookies_store: "..."
+          setting: "..."
+          chrome_policy {
+            [POLICY_NAME] {
+              policy_options {mode: MANDATORY/RECOMMENDED/UNSET}
+              [POLICY_NAME]: ... //(value to disable it)
+            }
+          }
+          policy_exception_justification: "..."
+        })");
   image_fetcher_->StartOrQueueNetworkRequest(
       server_request_url.spec(), server_request_url,
       base::Bind(&OnFetchIconFromGoogleServerComplete, favicon_service_,
-                 page_url, callback));
+                 page_url, callback),
+      traffic_annotation);
 }
 
 base::CancelableTaskTracker::TaskId