[Resumption 9/11] Handle filename determination for resumed downloads.

chrome/browser/chromeos/drive/download_handler.cc

Index: chrome/browser/chromeos/drive/download_handler.cc
diff --git a/chrome/browser/chromeos/drive/download_handler.cc b/chrome/browser/chromeos/drive/download_handler.cc
index d8c68e6cc221818e369683bc083959ef1462a791..af6c00e2062e156d241aef2b5f13d482fe1ded2c 100644
--- a/chrome/browser/chromeos/drive/download_handler.cc
+++ b/chrome/browser/chromeos/drive/download_handler.cc
@@ -244,8 +244,13 @@ void DownloadHandler::OnDownloadUpdated(
       data->set_complete();
       break;
 
-    case DownloadItem::CANCELLED:
     case DownloadItem::INTERRUPTED:
+      // Interrupted downloads can be resumed. Keep the Drive user data around
+      // so that it can be used when the download resumes. The download is truly
+      // done when it's complete, is cancelled or is removed.
+      break;

[Randy Smith (Not in Mondays), 2013/05/15 19:00:18]

How does this work over a browser restart?  I.e. is the driver user data
persisted?

[asanka, 2013/05/23 20:30:37]

On a browser restart, drive downloads get deleted due to the
DownloadHandler::OnDownloadCreated() above. The only resumption of interrupted
downloads we are handling are those that are resumed during the same browser
session they started in.

+
+    case DownloadItem::CANCELLED:
       download->SetUserData(&kDrivePathKey, NULL);
       break;