Add request header on gdata operation for testing ETag match.

chrome/browser/chromeos/drive/drive_uploader.cc

Index: chrome/browser/chromeos/drive/drive_uploader.cc
diff --git a/chrome/browser/chromeos/drive/drive_uploader.cc b/chrome/browser/chromeos/drive/drive_uploader.cc
index 25507bfa8483c21259ddd394f2e4424be5df6712..4ec8fa4ebb20d3ba4671de9738fc609b1ecdc237 100644
--- a/chrome/browser/chromeos/drive/drive_uploader.cc
+++ b/chrome/browser/chromeos/drive/drive_uploader.cc
@@ -304,7 +304,8 @@ void DriveUploader::OpenCompletionCallback(FileOpenType open_type,
                              upload_file_info->content_type,
                              upload_file_info->content_length,
                              upload_file_info->initial_upload_location,
-                             upload_file_info->drive_path),
+                             upload_file_info->drive_path,
+                             upload_file_info->etag),
         base::Bind(&DriveUploader::OnUploadLocationReceived,
                    weak_ptr_factory_.GetWeakPtr(),
                    upload_file_info->upload_id));
@@ -448,7 +449,8 @@ void DriveUploader::ResumeUpload(int upload_id) {
                                 upload_file_info->content_type,
                                 upload_file_info->buf,
                                 upload_file_info->upload_location,
-                                upload_file_info->drive_path),
+                                upload_file_info->drive_path,
+                                upload_file_info->etag),
       base::Bind(&DriveUploader::OnResumeUploadResponseReceived,
                  weak_ptr_factory_.GetWeakPtr(),
                  upload_file_info->upload_id));