Revert 149794 - DownloadItem::Observer::OnDownloadDestroyed() replaces DownloadItem::REMOVING

chrome/browser/chromeos/gdata/gdata_download_observer.cc

Index: chrome/browser/chromeos/gdata/gdata_download_observer.cc
===================================================================
--- chrome/browser/chromeos/gdata/gdata_download_observer.cc	(revision 150095)
+++ chrome/browser/chromeos/gdata/gdata_download_observer.cc	(working copy)
@@ -363,6 +363,7 @@
 
     // TODO(achuith): Stop the pending upload and delete the file.
     case DownloadItem::CANCELLED:
+    case DownloadItem::REMOVING:
     case DownloadItem::INTERRUPTED:
       RemovePendingDownload(download);
       break;
@@ -374,10 +375,6 @@
   DVLOG(1) << "Number of pending downloads=" << pending_downloads_.size();
 }
 
-void GDataDownloadObserver::OnDownloadDestroyed(DownloadItem* download) {
-  RemovePendingDownload(download);
-}
-
 void GDataDownloadObserver::AddPendingDownload(DownloadItem* download) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));