Network traffic annotation added to gaia_auth_fetcher.

ios/chrome/browser/signin/gaia_auth_fetcher_ios.mm

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "ios/chrome/browser/signin/gaia_auth_fetcher_ios.h"
 
 #import <WebKit/WebKit.h>
 
 #include "base/json/string_escape.h"
 #include "base/logging.h"
@@ skipping 311 matching lines @@
       browser_state_(browser_state) {
   // Account Consistency needs to be disabled for the Logout call. There is a
   // race with the cookie clearing request (handled by
   // AccountConsistencyService), so we invalidate the cookie for the call.
   SetLogoutHeaders("Cookie: CHROME_CONNECTED=EXPIRED;");
 }
 
 GaiaAuthFetcherIOS::~GaiaAuthFetcherIOS() {
 }
 
-void GaiaAuthFetcherIOS::CreateAndStartGaiaFetcher(const std::string& body,
-                                                   const std::string& headers,
-                                                   const GURL& gaia_gurl,
-                                                   int load_flags) {
+void GaiaAuthFetcherIOS::CreateAndStartGaiaFetcher(
+    const std::string& body,
+    const std::string& headers,
+    const GURL& gaia_gurl,
+    int load_flags,
+    const net::NetworkTrafficAnnotationTag& traffic_annotation) {
   DCHECK(!HasPendingFetch()) << "Tried to fetch two things at once!";
 
   bool cookies_required = !(load_flags & (net::LOAD_DO_NOT_SEND_COOKIES |
                                           net::LOAD_DO_NOT_SAVE_COOKIES));
   if (!ShouldUseGaiaAuthFetcherIOS() || !cookies_required) {
     GaiaAuthFetcher::CreateAndStartGaiaFetcher(body, headers, gaia_gurl,
-                                               load_flags);
+                                               load_flags, traffic_annotation);
     return;
   }
 
   DVLOG(2) << "Gaia fetcher URL: " << gaia_gurl.spec();
   DVLOG(2) << "Gaia fetcher headers: " << headers;
   DVLOG(2) << "Gaia fetcher body: " << body;
 
   // The fetch requires cookies and WKWebView is being used. The only way to do
   // a network request with cookies sent and saved is by making it through a
   // WKWebView.
@@ skipping 21 matching lines @@
 }
 
 void GaiaAuthFetcherIOS::SetShouldUseGaiaAuthFetcherIOSForTesting(
     bool use_gaia_fetcher_ios) {
   g_should_use_gaia_auth_fetcher_ios = use_gaia_fetcher_ios;
 }
 
 bool GaiaAuthFetcherIOS::ShouldUseGaiaAuthFetcherIOS() {
   return g_should_use_gaia_auth_fetcher_ios;
 }