Fix reconcilor loop when the primary account is in an auth error state.

chrome/browser/signin/mutable_profile_oauth2_token_service_delegate.cc

 // 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 "chrome/browser/signin/mutable_profile_oauth2_token_service_delegate.h"
 
 #include "base/profiler/scoped_tracker.h"
 #include "components/signin/core/browser/signin_client.h"
 #include "components/signin/core/browser/signin_metrics.h"
 #include "components/signin/core/browser/webdata/token_web_data.h"
@@ skipping 154 matching lines @@
   if (backoff_entry_.ShouldRejectRequest()) {
     VLOG(1) << "Request for token has been rejected due to backoff rules from"
             << " previous error #" << backoff_error_.state();
     return new OAuth2AccessTokenFetcherImmediateError(consumer, backoff_error_);
   }
   std::string refresh_token = GetRefreshToken(account_id);
   DCHECK(!refresh_token.empty());
   return new OAuth2AccessTokenFetcherImpl(consumer, getter, refresh_token);
 }
 
+bool MutableProfileOAuth2TokenServiceDelegate::RefreshTokenHasError(
+    const std::string& account_id) const {
+  auto it = refresh_tokens_.find(account_id);
+  return it == refresh_tokens_.end() ? false
+                                     : IsError(it->second->GetAuthStatus());
+}
+
 void MutableProfileOAuth2TokenServiceDelegate::UpdateAuthError(
     const std::string& account_id,
     const GoogleServiceAuthError& error) {
   VLOG(1) << "MutablePO2TS::UpdateAuthError. Error: " << error.state();
   backoff_entry_.InformOfRequest(!error.IsTransientError());
   ValidateAccountId(account_id);
 
   // Do not report connection errors as these are not actually auth errors.
   // We also want to avoid masking a "real" auth error just because we
   // subsequently get a transient network error.  We do keep it around though
@@ skipping 301 matching lines @@
     web_data_service_request_ = 0;
   }
 }
 
 void MutableProfileOAuth2TokenServiceDelegate::Shutdown() {
   VLOG(1) << "MutablePO2TS::Shutdown";
   server_revokes_.clear();
   CancelWebTokenFetch();
   refresh_tokens_.clear();
 }