Make DownloadHistory observe manager, items

chrome/browser/download/download_item_model.cc

 // Copyright (c) 2012 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_item_model.h"
 
 #include "base/i18n/number_formatting.h"
 #include "base/i18n/rtl.h"
 #include "base/string16.h"
 #include "base/sys_string_conversions.h"
@@ skipping 110 matching lines @@
     case DownloadItem::COMPLETE:
       if (download_->GetFileExternallyRemoved()) {
         status_text = l10n_util::GetStringUTF16(IDS_DOWNLOAD_STATUS_REMOVED);
       } else {
         status_text.clear();
       }
       break;
     case DownloadItem::CANCELLED:
       status_text = l10n_util::GetStringUTF16(IDS_DOWNLOAD_STATUS_CANCELLED);
       break;
-    case DownloadItem::REMOVING:
-      break;
     case DownloadItem::INTERRUPTED:
       reason = download_->GetLastReason();
       status_text = InterruptReasonStatusMessage(reason);
       if (total <= 0) {
         size_text = ui::FormatBytes(size);
       } else {
         size_text = l10n_util::GetStringFUTF16(IDS_DOWNLOAD_RECEIVED_SIZE,
                                                simple_size,
                                                simple_total);
       }
@@ skipping 218 matching lines @@
       break;
     default:
       string_id = IDS_DOWNLOAD_INTERRUPTED_STATUS;
       break;
   }
 
   status_text = l10n_util::GetStringUTF16(string_id);
 
   return status_text;
 }