Only re-enable remote service if the task used the network.

chrome/browser/sync_file_system/drive_backend/uninstall_app_task.cc

 // Copyright 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/sync_file_system/drive_backend/uninstall_app_task.h"
 
 #include "base/bind.h"
 #include "base/location.h"
 #include "chrome/browser/drive/drive_api_util.h"
 #include "chrome/browser/drive/drive_service_interface.h"
@@ skipping 40 matching lines @@
           sync_root_tracker_id, app_id_, &trackers) ||
       !trackers.has_active()) {
     RunSoon(FROM_HERE, base::Bind(callback, SYNC_STATUS_OK));
     return;
   }
 
   FileTracker* app_root_tracker = trackers.active_tracker();
   app_root_tracker_id_ = app_root_tracker->tracker_id();
   DCHECK(app_root_tracker->has_synced_details());
 
+  set_used_network(true);
   drive_service()->DeleteResource(
       app_root_tracker->file_id(),
       std::string(),  // etag
       base::Bind(&UninstallAppTask::DidDeleteAppRoot,
                  weak_ptr_factory_.GetWeakPtr(),
                  callback,
                  metadata_database()->GetLargestKnownChangeID()));
 }
 
 void UninstallAppTask::DidDeleteAppRoot(const SyncStatusCallback& callback,
@@ skipping 11 matching lines @@
 MetadataDatabase* UninstallAppTask::metadata_database() {
   return sync_context_->GetMetadataDatabase();
 }
 
 drive::DriveServiceInterface* UninstallAppTask::drive_service() {
   return sync_context_->GetDriveService();
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system