Protobuf for Traffic Annotation and first use by a URLFetcher.

chrome/browser/net/file_downloader.cc

Index: chrome/browser/net/file_downloader.cc
diff --git a/chrome/browser/net/file_downloader.cc b/chrome/browser/net/file_downloader.cc
index aa57047b7c2f62bbe5d959df52aacae95f794c74..9a66e21d03e9a730e8f6f5c7563029423bca8dea 100644
--- a/chrome/browser/net/file_downloader.cc
+++ b/chrome/browser/net/file_downloader.cc
@@ -25,7 +25,10 @@ FileDownloader::FileDownloader(const GURL& url,
                                net::URLRequestContextGetter* request_context,
                                const DownloadFinishedCallback& callback)
     : callback_(callback),
-      fetcher_(URLFetcher::Create(url, URLFetcher::GET, this)),
+      fetcher_(URLFetcher::Create(url,
+                                  URLFetcher::GET,
+                                  this,
+                                  NO_TRAFFIC_ANNOTATION_YET)),
       local_path_(path),
       weak_ptr_factory_(this) {
   fetcher_->SetRequestContext(request_context);