Update the Drive state in Files app when the refresh token is fetched.

chrome/browser/chromeos/extensions/file_manager/event_router.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/chromeos/extensions/file_manager/event_router.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/files/file_util.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 809 matching lines @@
 void EventRouter::OnRefreshTokenInvalid() {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // Raise a DriveConnectionStatusChanged event to notify the status offline.
   BroadcastEvent(
       profile_,
       file_manager_private::OnDriveConnectionStatusChanged::kEventName,
       file_manager_private::OnDriveConnectionStatusChanged::Create());
 }
 
+void EventRouter::OnReadyToSendRequests() {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+
+  // Raise a DriveConnectionStatusChanged event to notify the status online.
+  BroadcastEvent(
+      profile_,
+      file_manager_private::OnDriveConnectionStatusChanged::kEventName,
+      file_manager_private::OnDriveConnectionStatusChanged::Create());
+}
+
 void EventRouter::HandleFileWatchNotification(const drive::FileChange* list,
                                               const base::FilePath& local_path,
                                               bool got_error) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   WatcherMap::const_iterator iter = file_watchers_.find(local_path);
   if (iter == file_watchers_.end()) {
     return;
   }
 
@@ skipping 207 matching lines @@
 void EventRouter::SetDispatchDirectoryChangeEventImplForTesting(
     const DispatchDirectoryChangeEventImplCallback& callback) {
   dispatch_directory_change_event_impl_ = callback;
 }
 
 base::WeakPtr<EventRouter> EventRouter::GetWeakPtr() {
   return weak_factory_.GetWeakPtr();
 }
 
 }  // namespace file_manager