Persist download interrupt reason, both target and current paths, and url_chain.

content/public/browser/download_persistent_store_info.h

Index: content/public/browser/download_persistent_store_info.h
diff --git a/content/public/browser/download_persistent_store_info.h b/content/public/browser/download_persistent_store_info.h
index 8ca7de29a899941572364cc56abf07f2d1c7d030..aaabe9b78f704b249c591832a945247b4cc1d8bc 100644
--- a/content/public/browser/download_persistent_store_info.h
+++ b/content/public/browser/download_persistent_store_info.h
@@ -24,24 +24,32 @@ namespace content {
 // and read by the DownloadItem.
 struct CONTENT_EXPORT DownloadPersistentStoreInfo {
   DownloadPersistentStoreInfo();
-  DownloadPersistentStoreInfo(const FilePath& path,
-                              const GURL& url,
+  DownloadPersistentStoreInfo(const FilePath& target_path,
+                              const FilePath& current_path,
+                              const std::vector<GURL>& url_chain,
                               const GURL& referrer,
                               const base::Time& start,
                               const base::Time& end,
                               int64 received,
                               int64 total,
                               DownloadItem::DownloadState download_state,
+                              DownloadInterruptReason interrupt_reason,
                               int64 handle,
                               bool download_opened);
   ~DownloadPersistentStoreInfo();  // For linux-clang.
 
-  // The final path where the download is saved.
-  FilePath path;
+  // The target path where the download will go when it's complete.
+  FilePath target_path;
 
-  // The URL from which we are downloading. This is the final URL after any
-  // redirection by the server for |url_chain|. Is not changed by UpdateEntry().
-  GURL url;
+  // The current path to the download (potentially different from final if
+  // download is in progress or interrupted).
+  FilePath current_path;
+
+  // The URL redirect chain through which we are downloading.  The front
+  // is the url that the initial request went to, and the back is the
+  // url from which we ended up getting data.  This is not changed by
+  // UpdateEntry().
+  std::vector<GURL> url_chain;
 
   // The URL that referred us.
   GURL referrer_url;
@@ -61,6 +69,10 @@ struct CONTENT_EXPORT DownloadPersistentStoreInfo {
   // The current state of the download.
   DownloadItem::DownloadState state;
 
+  // The reason the download was interrupted, if
+  // state == DownloadItem::INTERRUPTED
+  DownloadInterruptReason interrupt_reason;
+
   // The handle of the download in the database. Is not changed by
   // UpdateEntry().
   int64 db_handle;