Device robot refresh token integrity validation.

chrome/browser/signin/ubertoken_fetcher.cc

Index: chrome/browser/signin/ubertoken_fetcher.cc
diff --git a/chrome/browser/signin/ubertoken_fetcher.cc b/chrome/browser/signin/ubertoken_fetcher.cc
index 43bf816012204f6d5e679d9f3958fde7b2e53336..bbcafb771340b1bbe8b85c6b54e5341845604a75 100644
--- a/chrome/browser/signin/ubertoken_fetcher.cc
+++ b/chrome/browser/signin/ubertoken_fetcher.cc
@@ -2,12 +2,15 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+#include "chrome/browser/signin/ubertoken_fetcher.h"
+
+#include <vector>
+
 #include "base/logging.h"
 #include "base/stringprintf.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/signin/token_service.h"
 #include "chrome/browser/signin/token_service_factory.h"
-#include "chrome/browser/signin/ubertoken_fetcher.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "google_apis/gaia/gaia_constants.h"
 #include "google_apis/gaia/gaia_urls.h"
@@ -48,8 +51,10 @@ void UbertokenFetcher::StartFetchingUbertoken() {
   client_info.client_secret = urls->oauth2_chrome_client_secret();
   gaia_oauth_client_.reset(new gaia::GaiaOAuthClient(
       urls->oauth2_token_url(), profile_->GetRequestContext()));
+  std::vector<std::string> empty_scope_list;  // (Use scope from refresh token.)
   gaia_oauth_client_->RefreshToken(
-      client_info, token_service->GetOAuth2LoginRefreshToken(), 1, this);
+      client_info, token_service->GetOAuth2LoginRefreshToken(),
+      empty_scope_list, 1, this);
 }
 
 void UbertokenFetcher::Observe(int type,