Added member data to classes to support download resumption.

content/browser/download/download_manager_impl.h

Index: content/browser/download/download_manager_impl.h
diff --git a/content/browser/download/download_manager_impl.h b/content/browser/download/download_manager_impl.h
index d020c553a886a3c8a528f48c6070e261ae72d385..1f7d832af08257aacc2faa563c86d2b2e08474f5 100644
--- a/content/browser/download/download_manager_impl.h
+++ b/content/browser/download/download_manager_impl.h
@@ -42,11 +42,15 @@ class CONTENT_EXPORT DownloadManagerImpl
                                DownloadVector* result) OVERRIDE;
   virtual bool Init(content::BrowserContext* browser_context) OVERRIDE;
   virtual void StartDownload(int32 id) OVERRIDE;
-  virtual void UpdateDownload(int32 download_id, int64 size) OVERRIDE;
+  virtual void UpdateDownload(int32 download_id,
+                              int64 size,
+                              std::string hash_state) OVERRIDE;
   virtual void OnResponseCompleted(int32 download_id, int64 size,
                                    const std::string& hash) OVERRIDE;
   virtual void CancelDownload(int32 download_id) OVERRIDE;
-  virtual void OnDownloadInterrupted(int32 download_id, int64 size,
+  virtual void OnDownloadInterrupted(int32 download_id,
+                                     int64 size,
+                                     std::string hash_state,
                                      InterruptReason reason) OVERRIDE;
   virtual void DownloadCancelledInternal(DownloadItem* download) OVERRIDE;
   virtual void RemoveDownload(int64 download_handle) OVERRIDE;