Add resource ID based download requests in {GDataWapi/Drive} requests.

chrome/browser/drive/gdata_wapi_service.cc

Index: chrome/browser/drive/gdata_wapi_service.cc
diff --git a/chrome/browser/drive/gdata_wapi_service.cc b/chrome/browser/drive/gdata_wapi_service.cc
index 7198edb5e851377dcaefaa14abe93e229d97b677..a83955496b93d325154ce64104848125b9c17c68 100644
--- a/chrome/browser/drive/gdata_wapi_service.cc
+++ b/chrome/browser/drive/gdata_wapi_service.cc
@@ -32,7 +32,7 @@ using google_apis::CopyHostedDocumentRequest;
 using google_apis::CreateDirectoryRequest;
 using google_apis::DeleteResourceRequest;
 using google_apis::DownloadActionCallback;
-using google_apis::DownloadFileRequest;
+using google_apis::DownloadFileRequestBase;
 using google_apis::EntryActionCallback;
 using google_apis::GDataErrorCode;
 using google_apis::GDATA_PARSE_ERROR;
@@ -340,13 +340,14 @@ CancelCallback GDataWapiService::DownloadFile(
   DCHECK(!download_action_callback.is_null());
   // get_content_callback and progress_callback may be null.
 
+  // TODO(kinaba): crbug.com/254025: use resource_id based download request.
   return sender_->StartRequestWithRetry(
-      new DownloadFileRequest(sender_.get(),
-                              download_action_callback,
-                              get_content_callback,
-                              progress_callback,
-                              download_url,
-                              local_cache_path));
+      new DownloadFileRequestBase(sender_.get(),
+                                  download_action_callback,
+                                  get_content_callback,
+                                  progress_callback,
+                                  download_url,
+                                  local_cache_path));
 }
 
 CancelCallback GDataWapiService::DeleteResource(