[SyncFS] Support late authentication

chrome/browser/sync_file_system/drive_backend/sync_worker.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 "chrome/browser/sync_file_system/drive_backend/sync_worker.h"
 
 #include <vector>
 
 #include "base/bind.h"
 #include "chrome/browser/drive/drive_service_interface.h"
@@ skipping 319 matching lines @@
 void SyncWorker::OnNotificationReceived() {
   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
 
   if (service_state_ == REMOTE_SERVICE_TEMPORARY_UNAVAILABLE)
     UpdateServiceState(REMOTE_SERVICE_OK, "Got push notification for Drive.");
 
   should_check_remote_change_ = true;
   MaybeScheduleNextTask();
 }
 
-void SyncWorker::OnReadyToSendRequests(const std::string& account_id) {
+void SyncWorker::OnReadyToSendRequests() {
   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
 
   has_refresh_token_ = true;
 
   if (service_state_ == REMOTE_SERVICE_OK)
     return;
   UpdateServiceState(REMOTE_SERVICE_OK, "Authenticated");
 
-  if (!GetMetadataDatabase() && !account_id.empty()) {
-    GetDriveService()->Initialize(account_id);
+  if (!GetMetadataDatabase()) {
     PostInitializeTask();
     return;
   }
 
   should_check_remote_change_ = true;
   MaybeScheduleNextTask();
 }
 
 void SyncWorker::OnRefreshTokenInvalid() {
   DCHECK(sequence_checker_.CalledOnValidSequencedThread());
@@ skipping 382 matching lines @@
             "Service state changed: %d->%d: %s",
             old_state, GetCurrentState(), description.c_str());
 
   FOR_EACH_OBSERVER(
       Observer, observers_,
       UpdateServiceState(GetCurrentState(), description));
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system