Drive: Move inner structures of DriveAPIService under drive namespace.

chrome/browser/extensions/api/file_system/file_system_apitest_chromeos.cc

Index: chrome/browser/extensions/api/file_system/file_system_apitest_chromeos.cc
diff --git a/chrome/browser/extensions/api/file_system/file_system_apitest_chromeos.cc b/chrome/browser/extensions/api/file_system/file_system_apitest_chromeos.cc
index f40a47b5a107aa06247a8841ead23c4d8f228523..c96a908f505468348712853bf8e8876b5cdf1100 100644
--- a/chrome/browser/extensions/api/file_system/file_system_apitest_chromeos.cc
+++ b/chrome/browser/extensions/api/file_system/file_system_apitest_chromeos.cc
@@ -111,8 +111,7 @@ class FileSystemApiTestForDrive : public PlatformAppBrowserTest {
     scoped_ptr<google_apis::FileResource> entry;
     google_apis::DriveApiErrorCode error = google_apis::DRIVE_OTHER_ERROR;
     fake_drive_service_->AddNewDirectory(
-        parent_id, title,
-        drive::DriveServiceInterface::AddNewDirectoryOptions(),
+        parent_id, title, drive::AddNewDirectoryOptions(),
         google_apis::test_util::CreateCopyResultCallback(&error, &entry));
     content::RunAllPendingInMessageLoop();
     return error == google_apis::HTTP_CREATED && entry ? entry->file_id() : "";