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 55225493c0b2d123d22ce968d4d2e04bd77e8cad..4db6c362d4c4a60aeb6b1d220f7d5d79d7d07188 100644
--- a/content/browser/download/download_manager.h
+++ b/content/browser/download/download_manager.h
@@ -105,7 +105,9 @@ class CONTENT_EXPORT DownloadManager
 
   // Notifications sent from the download thread to the UI thread
   virtual void StartDownload(int32 id) = 0;
-  virtual void UpdateDownload(int32 download_id, int64 size) = 0;
+  virtual void UpdateDownload(int32 download_id,
+                              int64 size,
+                              std::string hash_state) = 0;
 
   // |download_id| is the ID of the download.
   // |size| is the number of bytes that have been downloaded.
@@ -121,9 +123,13 @@ 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.
+  // |hash_state| is the current state of the hash of the data that has been
+  // downloaded.
   // |reason| is a download interrupt reason code.
-  virtual void OnDownloadInterrupted(int32 download_id, int64 size,
-                             InterruptReason reason) = 0;
+  virtual void OnDownloadInterrupted(int32 download_id,
+                                     int64 size,
+                                     std::string hash_state,
+                                     InterruptReason reason) = 0;
 
   // Called from DownloadItem to handle the DownloadManager portion of a
   // Cancel; should not be called from other locations.