drive: Make sync performers aware of locally created files

chrome/browser/chromeos/drive/sync/entry_revert_performer.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/chromeos/drive/sync/entry_revert_performer.h"
 
 #include "chrome/browser/chromeos/drive/change_list_processor.h"
 #include "chrome/browser/chromeos/drive/drive.pb.h"
 #include "chrome/browser/chromeos/drive/file_system/operation_observer.h"
 #include "chrome/browser/chromeos/drive/job_scheduler.h"
@@ skipping 92 matching lines @@
 }
 
 void EntryRevertPerformer::RevertEntryAfterPrepare(
     const ClientContext& context,
     const FileOperationCallback& callback,
     scoped_ptr<ResourceEntry> entry,
     FileError error) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   DCHECK(!callback.is_null());
 
+  if (error == FILE_ERROR_OK && entry->resource_id().empty())
+    error = FILE_ERROR_INVALID_OPERATION;
+
   if (error != FILE_ERROR_OK) {
     callback.Run(error);
     return;
   }
 
   scheduler_->GetResourceEntry(
       entry->resource_id(),
       context,
       base::Bind(&EntryRevertPerformer::RevertEntryAfterGetResourceEntry,
                  weak_ptr_factory_.GetWeakPtr(), callback, entry->local_id()));
@@ skipping 27 matching lines @@
 
   for (std::set<base::FilePath>::const_iterator it =
            changed_directories->begin(); it != changed_directories->end(); ++it)
     observer_->OnDirectoryChangedByOperation(*it);
 
   callback.Run(error);
 }
 
 }  // namespace internal
 }  // namespace drive