Actually mark list accounts as stale while they're being fetched.

components/signin/core/browser/gaia_cookie_manager_service.cc

 // Copyright 2014 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 "components/signin/core/browser/gaia_cookie_manager_service.h"
 
 #include <queue>
 #include <vector>
 
 #include "base/json/json_reader.h"
@@ skipping 430 matching lines @@
   uber_token_fetcher_.reset();
   requests_.clear();
   fetcher_timer_.Stop();
 }
 
 void GaiaCookieManagerService::OnCookieChanged(
     const net::CanonicalCookie& cookie,
     bool removed) {
   DCHECK_EQ(kGaiaCookieName, cookie.Name());
   DCHECK_EQ(GaiaUrls::GetInstance()->google_url().host(), cookie.Domain());
+  list_accounts_stale_ = true;
   // Ignore changes to the cookie while requests are pending.  These changes
   // are caused by the service itself as it adds accounts.  A side effects is
   // that any changes to the gaia cookie outside of this class, while requests
   // are pending, will be lost.  However, trying to process these changes could
   // cause an endless loop (see crbug.com/516070).
   if (requests_.empty()) {
     requests_.push_back(GaiaCookieRequest::CreateListAccountsRequest());
     fetcher_retries_ = 0;
     signin_client_->DelayNetworkCall(
         base::Bind(&GaiaCookieManagerService::StartFetchingListAccounts,
                    base::Unretained(this)));
-  } else {
-    list_accounts_stale_ = true;
   }
 }
 
 void GaiaCookieManagerService::SignalComplete(
     const std::string& account_id,
     const GoogleServiceAuthError& error) {
   // Its possible for the observer to delete |this| object.  Don't access
   // access any members after this calling the observer.  This method should
   // be the last call in any other method.
   FOR_EACH_OBSERVER(Observer, observer_list_,
@@ skipping 231 matching lines @@
         break;
       case GaiaCookieRequestType::LIST_ACCOUNTS:
         uber_token_fetcher_.reset();
         signin_client_->DelayNetworkCall(
             base::Bind(&GaiaCookieManagerService::StartFetchingListAccounts,
                        base::Unretained(this)));
         break;
     };
   }
 }