drive: Pass through AboutResouce from server among callbacks in ChangeListLoader.

chrome/browser/chromeos/drive/drive_file_system_unittest.cc

Index: chrome/browser/chromeos/drive/drive_file_system_unittest.cc
diff --git a/chrome/browser/chromeos/drive/drive_file_system_unittest.cc b/chrome/browser/chromeos/drive/drive_file_system_unittest.cc
index fd6f526ca9d4db4c4d75a9bde35242ec83edbee8..8346f5ac25b3c8f084edf7151474aa81a3fb0e5f 100644
--- a/chrome/browser/chromeos/drive/drive_file_system_unittest.cc
+++ b/chrome/browser/chromeos/drive/drive_file_system_unittest.cc
@@ -271,6 +271,7 @@ class DriveFileSystemTest : public testing::Test {
     if (!test_util::LoadChangeFeed(filename,
                                    file_system_->change_list_loader(),
                                    is_delta_feed,
+                                   fake_drive_service_->GetRootResourceId(),
                                    root_feed_changestamp_)) {
       return false;
     }