Detect removed files and reflect the state in chrome://downloads and the download shelf

chrome/browser/ui/webui/downloads_ui.cc

 // Copyright (c) 2011 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/ui/webui/downloads_ui.h"
 
 #include "base/memory/singleton.h"
 #include "base/string_piece.h"
 #include "base/threading/thread.h"
 #include "base/values.h"
@@ skipping 56 matching lines @@
   localized_strings.SetString("searchresultsfor",
       l10n_util::GetStringUTF16(IDS_DOWNLOAD_SEARCHRESULTSFOR));
   localized_strings.SetString("downloads",
       l10n_util::GetStringUTF16(IDS_DOWNLOAD_TITLE));
   localized_strings.SetString("clear_all",
       l10n_util::GetStringUTF16(IDS_DOWNLOAD_LINK_CLEAR_ALL));
 
   // Status.
   localized_strings.SetString("status_cancelled",
       l10n_util::GetStringUTF16(IDS_DOWNLOAD_TAB_CANCELED));
+  localized_strings.SetString("status_removed",
+      l10n_util::GetStringUTF16(IDS_DOWNLOAD_FILE_REMOVED));
   localized_strings.SetString("status_paused",
       l10n_util::GetStringUTF16(IDS_DOWNLOAD_PROGRESS_PAUSED));
   localized_strings.SetString("status_interrupted",
       l10n_util::GetStringUTF16(IDS_DOWNLOAD_PROGRESS_INTERRUPTED));
 
   // Dangerous file.
   localized_strings.SetString("danger_file_desc",
       l10n_util::GetStringUTF16(IDS_PROMPT_DANGEROUS_DOWNLOAD));
   localized_strings.SetString("danger_url_desc",
       l10n_util::GetStringUTF16(IDS_PROMPT_UNSAFE_DOWNLOAD_URL));
@@ skipping 53 matching lines @@
 
   // Set up the chrome://downloads/ source.
   contents->profile()->GetChromeURLDataManager()->AddDataSource(html_source);
 }
 
 // static
 RefCountedMemory* DownloadsUI::GetFaviconResourceBytes() {
   return ResourceBundle::GetSharedInstance().
       LoadDataResourceBytes(IDR_DOWNLOADS_FAVICON);
 }