signin: record http response codes and net errors in OAuth2AccessTokenFetcher.

chrome/browser/invalidation/ticl_invalidation_service.cc

 // Copyright (c) 2013 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/invalidation/ticl_invalidation_service.h"
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/invalidation/invalidation_service_util.h"
@@ skipping 204 matching lines @@
     case GoogleServiceAuthError::SERVICE_UNAVAILABLE: {
       // Transient error. Retry after some time.
       request_access_token_backoff_.InformOfRequest(false);
       request_access_token_retry_timer_.Start(
             FROM_HERE,
             request_access_token_backoff_.GetTimeUntilRelease(),
             base::Bind(&TiclInvalidationService::RequestAccessToken,
                        base::Unretained(this)));
       break;
     }
+    case GoogleServiceAuthError::SERVICE_ERROR:
     case GoogleServiceAuthError::INVALID_GAIA_CREDENTIALS: {
       // This is a real auth error.
       // Report time since token was issued for invalid credentials error.
       base::Time auth_token_time =
           AboutSigninInternalsFactory::GetForProfile(profile_)->
               GetTokenTime(GaiaConstants::kGaiaOAuth2LoginRefreshToken);
       if (!auth_token_time.is_null()) {
         base::TimeDelta age = base::Time::Now() - auth_token_time;
         if (age < base::TimeDelta::FromHours(1)) {
           UMA_HISTOGRAM_CUSTOM_TIMES(
@@ skipping 161 matching lines @@
   }
 
   // This service always expects to have a valid invalidator storage.
   // So we must not only clear the old one, but also start a new one.
   invalidator_storage_->Clear();
   invalidator_storage_.reset(new InvalidatorStorage(profile_->GetPrefs()));
   invalidator_storage_->SetInvalidatorClientId(GenerateInvalidatorClientId());
 }
 
 }  // namespace invalidation