Added member data to classes to support download resumption.

content/browser/download/download_manager.h

Index: content/browser/download/download_manager.h
diff --git a/content/browser/download/download_manager.h b/content/browser/download/download_manager.h
index d727798638fe6d6ae339dc9b95efb26036529c7b..2e484ce6a411f61b00926a40d31f44907234c566 100644
--- a/content/browser/download/download_manager.h
+++ b/content/browser/download/download_manager.h
@@ -134,7 +134,8 @@ class CONTENT_EXPORT DownloadManager
 
   // Notifications sent from the download thread to the UI thread
   void StartDownload(int32 id);
-  void UpdateDownload(int32 download_id, int64 size);
+  void UpdateDownload(int32 download_id, int64 size,
+                      const std::string& partial_hash);
 
   // |download_id| is the ID of the download.
   // |size| is the number of bytes that have been downloaded.
@@ -150,8 +151,10 @@ class CONTENT_EXPORT DownloadManager
   // Called when there is an error in the download.
   // |download_id| is the ID of the download.
   // |size| is the number of bytes that are currently downloaded.
+  // |partial_hash| is the current hash of the data that has been downloaded.
   // |reason| is a download interrupt reason code.
   void OnDownloadInterrupted(int32 download_id, int64 size,
+                             const std::string partial_hash,
                              InterruptReason reason);
 
   // Called from DownloadItem to handle the DownloadManager portion of a
@@ -362,7 +365,7 @@ class CONTENT_EXPORT DownloadManager
   // Called when a download entry is committed to the persistent store.
   void OnDownloadItemAddedToPersistentStore(int32 download_id, int64 db_handle);
 
-  // Called when Save Page As entry is commited to the persistent store.
+  // Called when Save Page As entry is committed to the persistent store.
   void OnSavePageItemAddedToPersistentStore(int32 download_id, int64 db_handle);
 
   // |downloads_| is the owning set for all downloads known to the