drive: Replace GetResourceListCallback in DriveServiceInterface with FileListCallback

chrome/browser/sync_file_system/drive_backend/drive_backend_util.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/drive_backend_util.h"
 
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop_proxy.h"
@@ skipping 164 matching lines @@
 
 std::string GetMimeTypeFromTitle(const base::FilePath& title) {
   base::FilePath::StringType extension = title.Extension();
   std::string mime_type;
   if (extension.empty() ||
       !net::GetWellKnownMimeTypeFromExtension(extension.substr(1), &mime_type))
     return kMimeTypeOctetStream;
   return mime_type;
 }
 
-scoped_ptr<google_apis::ResourceEntry> GetOldestCreatedFolderResource(
-    ScopedVector<google_apis::ResourceEntry> candidates) {
-  scoped_ptr<google_apis::ResourceEntry> oldest;
-  for (size_t i = 0; i < candidates.size(); ++i) {
-    google_apis::ResourceEntry* entry = candidates[i];
-    if (!entry->is_folder() || entry->deleted())
-      continue;
-
-    if (!oldest || oldest->published_time() > entry->published_time()) {
-      oldest.reset(entry);
-      candidates[i] = NULL;
-    }
-  }
-
-  return oldest.Pass();
-}
-
 SyncStatusCode GDataErrorCodeToSyncStatusCode(
     google_apis::GDataErrorCode error) {
   // NOTE: Please update DriveFileSyncService::UpdateServiceState when you add
   // more error code mapping.
   switch (error) {
     case google_apis::HTTP_SUCCESS:
     case google_apis::HTTP_CREATED:
     case google_apis::HTTP_NO_CONTENT:
     case google_apis::HTTP_FOUND:
       return SYNC_STATUS_OK;
@@ skipping 55 matching lines @@
 }
 
 scoped_ptr<FileTracker> CloneFileTracker(const FileTracker* obj) {
   if (!obj)
     return scoped_ptr<FileTracker>();
   return scoped_ptr<FileTracker>(new FileTracker(*obj));
 }
 
 }  // namespace drive_backend
 }  // namespace sync_file_system