Network traffic annotation added to gaia_auth_fetcher.

ios/chrome/browser/signin/gaia_auth_fetcher_ios.h

Index: ios/chrome/browser/signin/gaia_auth_fetcher_ios.h
diff --git a/ios/chrome/browser/signin/gaia_auth_fetcher_ios.h b/ios/chrome/browser/signin/gaia_auth_fetcher_ios.h
index 48a8f08919ae8aafc211ee4a01cabfab063ce564..c3e0eb8a61979333a17b28448531731750de01d0 100644
--- a/ios/chrome/browser/signin/gaia_auth_fetcher_ios.h
+++ b/ios/chrome/browser/signin/gaia_auth_fetcher_ios.h
@@ -9,6 +9,7 @@
 
 #include "base/macros.h"
 #include "google_apis/gaia/gaia_auth_fetcher.h"
+#include "net/traffic_annotation/network_traffic_annotation.h"
 
 class GaiaAuthFetcherIOSBridge;
 
@@ -48,10 +49,12 @@ class GaiaAuthFetcherIOS : public GaiaAuthFetcher {
   friend class GaiaAuthFetcherIOSBridge;
   friend class GaiaAuthFetcherIOSTest;
 
-  void CreateAndStartGaiaFetcher(const std::string& body,
-                                 const std::string& headers,
-                                 const GURL& gaia_gurl,
-                                 int load_flags) override;
+  void CreateAndStartGaiaFetcher(
+      const std::string& body,
+      const std::string& headers,
+      const GURL& gaia_gurl,
+      int load_flags,
+      const net::NetworkTrafficAnnotationTag& traffic_annotation) override;
   void FetchComplete(const GURL& url,
                      const std::string& data,
                      const net::ResponseCookies& cookies,