Makes the download shelf auto-close after the user opens all downloads

chrome/browser/download/download_manager.cc

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/download/download_manager.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "base/callback.h"
 #include "base/file_util.h"
@@ skipping 902 matching lines @@
   platform_util::ShowItemInFolder(download->full_path());
 #else
   ChromeThread::PostTask(
       ChromeThread::FILE, FROM_HERE,
       NewRunnableMethod(
           file_manager_, &DownloadFileManager::OnShowDownloadInShell,
           FilePath(download->full_path())));
 #endif
 }
 
-void DownloadManager::OpenDownload(const DownloadItem* download,
+void DownloadManager::OpenDownload(DownloadItem* download,
                                    gfx::NativeView parent_window) {
   // Open Chrome extensions with ExtensionsService. For everything else do shell
   // execute.
   if (download->is_extension_install()) {
+    download->Opened();
     download_util::OpenChromeExtension(profile_, this, *download);
   } else {
     OpenDownloadInShell(download, parent_window);
   }
 }
 
-void DownloadManager::OpenDownloadInShell(const DownloadItem* download,
+void DownloadManager::OpenDownloadInShell(DownloadItem* download,
                                           gfx::NativeView parent_window) {
   DCHECK(file_manager_);
   DCHECK(ChromeThread::CurrentlyOn(ChromeThread::UI));
+  download->Opened();
 #if defined(OS_MACOSX)
   // Mac OS X requires opening downloads on the UI thread.
   platform_util::OpenItem(download->full_path());
 #else
   ChromeThread::PostTask(
       ChromeThread::FILE, FROM_HERE,
       NewRunnableMethod(
           file_manager_, &DownloadFileManager::OnOpenDownloadInShell,
           download->full_path(), download->url(), parent_window));
 #endif
@@ skipping 216 matching lines @@
     observed_download_manager_->RemoveObserver(this);
 }
 
 void DownloadManager::OtherDownloadManagerObserver::ModelChanged() {
   observing_download_manager_->NotifyModelChanged();
 }
 
 void DownloadManager::OtherDownloadManagerObserver::ManagerGoingDown() {
   observed_download_manager_ = NULL;
 }