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..19b3da3a610a4f2f65350d7fce1d62c579473e45 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 +290,53 @@ void ChromeOmniboxClient::OnResultChanged(
         BitmapFetcherServiceFactory::GetForBrowserContext(profile_);
     if (image_service) {
       image_service->CancelRequest(request_id_);
+
+      // TODO(jdonnelly, rhalavati): Create a helper function with Callback to
+      // create annotation and pass it to image_service, merging this annotation
+      // and the one in
+      // chrome/browser/autocomplete/chrome_autocomplete_provider_client.cc
+      net::NetworkTrafficAnnotationTag traffic_annotation =
+          net::DefineNetworkTrafficAnnotation("omnibox_result_change", R"(
+            semantics {
+              sender: "Omnibox"
+              description:
+                "Chromium provides answers in the suggestion list for "
+                "certain queries that user types in the omnibox. This request "
+                "retrieves a small image (for example, an icon illustrating "
+                "the current weather conditions) when this can add information "
+                "to an answer."
+              trigger:
+                "Change of results for the query typed by the user in the "
+                "omnibox."
+              data:
+                "The only data sent is the path to an image. No user data is "
+                "included, although some might be inferrable (e.g. whether the "
+                "weather is sunny or rainy in the user's current location) "
+                "from the name of the image in the path."
+              destination: WEBSITE
+            }
+            policy {
+              cookies_allowed: true
+              cookies_store: "user"
+              setting:
+                "You can enable or disable this feature via 'Use a prediction "
+                "service to help complete searches and URLs typed in the "
+                "address bar.' in Chromium's settings under Advanced. The "
+                "feature is enabled by default."
+              policy {
+                SearchSuggestEnabled {
+                    policy_options {mode: MANDATORY}
+                    value: false
+                }
+              }
+            })");
+
       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);
     }
   }
 }