[Sync] Log age of auth tokens on authentication failure

sync/internal_api/sync_manager_impl.cc

 // Copyright (c) 2012 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 "sync/internal_api/sync_manager_impl.h"
 
 #include <string>
 
 #include "base/base64.h"
 #include "base/bind.h"
@@ skipping 580 matching lines @@
   return directory()->PurgeEntriesWithTypeIn(disabled_types, failed_types);
 }
 
 void SyncManagerImpl::UpdateCredentials(const SyncCredentials& credentials) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(initialized_);
   DCHECK(!credentials.email.empty());
   DCHECK(!credentials.sync_token.empty());
 
   observing_network_connectivity_changes_ = true;
-  if (!connection_manager_->set_auth_token(credentials.sync_token))
+  if (!connection_manager_->set_auth_token(credentials.sync_token,
+                                           credentials.sync_token_time))
     return;  // Auth token is known to be invalid, so exit early.
 
   invalidator_->UpdateCredentials(credentials.email, credentials.sync_token);
   scheduler_->OnCredentialsUpdated();
+
+  // TODO(zea): pass the credential age to the debug info event listener.
 }
 
 void SyncManagerImpl::UpdateEnabledTypes(ModelTypeSet enabled_types) {
   DCHECK(thread_checker_.CalledOnValidThread());
   DCHECK(initialized_);
   invalidator_->UpdateRegisteredIds(
       this,
       ModelTypeSetToObjectIdSet(enabled_types));
 }
 
@@ skipping 778 matching lines @@
 int SyncManagerImpl::GetDefaultNudgeDelay() {
   return kDefaultNudgeDelayMilliseconds;
 }
 
 // static.
 int SyncManagerImpl::GetPreferencesNudgeDelay() {
   return kPreferencesNudgeDelayMilliseconds;
 }
 
 }  // namespace syncer