Hooked up NetLog to DownloadItem, DownloadFile, and FileStream.

content/browser/tab_contents/web_drag_source_gtk.cc

Index: content/browser/tab_contents/web_drag_source_gtk.cc
diff --git a/content/browser/tab_contents/web_drag_source_gtk.cc b/content/browser/tab_contents/web_drag_source_gtk.cc
index da09af234226bbc3566c02bd08751b057afd6ebb..6be0dc64c93031bcfd59a07058b2d866ea720cb4 100644
--- a/content/browser/tab_contents/web_drag_source_gtk.cc
+++ b/content/browser/tab_contents/web_drag_source_gtk.cc
@@ -18,6 +18,7 @@
 #include "content/public/browser/content_browser_client.h"
 #include "content/public/browser/render_view_host_delegate.h"
 #include "content/public/browser/web_contents_view.h"
+#include "content/public/common/content_client.h"
 #include "net/base/file_stream.h"
 #include "net/base/net_util.h"
 #include "third_party/skia/include/core/SkBitmap.h"
@@ -243,7 +244,9 @@ void WebDragSourceGtk::OnDragDataGet(GtkWidget* sender,
         if (net::FileURLToFilePath(file_url, &file_path)) {
           // Open the file as a stream.
           net::FileStream* file_stream =
-              drag_download_util::CreateFileStreamForDrop(&file_path);
+              drag_download_util::CreateFileStreamForDrop(
+                  &file_path,
+                  content::GetContentClient()->browser()->GetNetLog());
           if (file_stream) {
             // Start downloading the file to the stream.
             scoped_refptr<DragDownloadFile> drag_file_downloader =