Use DriveService for proper resource id resolution in ChangeListLoader.

chrome/browser/chromeos/drive/file_system/operation_test_base.cc

Index: chrome/browser/chromeos/drive/file_system/operation_test_base.cc
diff --git a/chrome/browser/chromeos/drive/file_system/operation_test_base.cc b/chrome/browser/chromeos/drive/file_system/operation_test_base.cc
index 84f362bfa92d3a283b58b55a45336a667f4e99be..d25b2eec36f65d85d00aef1eed6121009b005a08 100644
--- a/chrome/browser/chromeos/drive/file_system/operation_test_base.cc
+++ b/chrome/browser/chromeos/drive/file_system/operation_test_base.cc
@@ -110,7 +110,10 @@ void OperationTestBase::SetUp() {
 
   // Makes sure the FakeDriveService's content is loaded to the metadata_.
   change_list_loader_.reset(new internal::ChangeListLoader(
-      blocking_task_runner_.get(), metadata_.get(), scheduler_.get()));
+      blocking_task_runner_.get(),
+      metadata_.get(),
+      scheduler_.get(),
+      fake_drive_service_.get()));
   change_list_loader_->LoadIfNeeded(
       internal::DirectoryFetchInfo(),
       google_apis::test_util::CreateCopyResultCallback(&error));