Race condition in component_updater::BackgroundDowloader (follow up)

chrome/browser/component_updater/background_downloader_win.cc

Index: chrome/browser/component_updater/background_downloader_win.cc
diff --git a/chrome/browser/component_updater/background_downloader_win.cc b/chrome/browser/component_updater/background_downloader_win.cc
index 43db77a825399ce6a041e046fc332a42c772459e..c92320a073f2b3fcfe921a39374d8d12b72f9cd1 100644
--- a/chrome/browser/component_updater/background_downloader_win.cc
+++ b/chrome/browser/component_updater/background_downloader_win.cc
@@ -525,6 +525,8 @@ void BackgroundDownloader::EndDownload(HRESULT error) {
   // Clean up stale jobs before invoking the callback.
   CleanupStaleJobs(bits_manager_);
 
+  bits_manager_ = NULL;
+
   Result result;
   result.error = error;
   result.response = response;
@@ -537,8 +539,6 @@ void BackgroundDownloader::EndDownload(HRESULT error) {
                    result,
                    download_metrics));
 
-  bits_manager_ = NULL;
-
   // Once the task is posted to the the UI thread, this object may be deleted
   // by its owner. It is not safe to access members of this object on the
   // FILE thread from this point on. The timer is stopped and all BITS