Added DownloadItem::Observer to JobController.

content/browser/background_fetch/background_fetch_job_data.h

Index: content/browser/background_fetch/background_fetch_job_data.h
diff --git a/content/browser/background_fetch/background_fetch_job_data.h b/content/browser/background_fetch/background_fetch_job_data.h
index 61653b350d7d973ea5afa9fd78895bb197df9456..0e9fe4ba5ccc23deebc5ffd3818a13dba091d3d3 100644
--- a/content/browser/background_fetch/background_fetch_job_data.h
+++ b/content/browser/background_fetch/background_fetch_job_data.h
@@ -38,6 +38,11 @@ class CONTENT_EXPORT BackgroundFetchJobData {
   // Indicates whether all requests have been handed out and completed.
   bool IsComplete() const;
 
+  // Inform the JobData of the GUID the DownloadManager assigned to this
+  // request.
+  void SetRequestDownloadGuid(const std::string& request_guid,
+                              const std::string& download_guid);
+
  private:
   BackgroundFetchRequestInfos request_infos_;