Make DownloadHistory observe manager, items

content/shell/shell_download_manager_delegate.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 "content/shell/shell_download_manager_delegate.h"
 
 #if defined(TOOLKIT_GTK)
 #include <gtk/gtk.h>
 #endif
 
@@ skipping 11 matching lines @@
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_manager.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_contents_view.h"
 #include "net/base/net_util.h"
 
 namespace content {
 
 ShellDownloadManagerDelegate::ShellDownloadManagerDelegate()
     : download_manager_(NULL),
-      suppress_prompting_(false),
-      last_download_db_handle_(DownloadItem::kUninitializedHandle) {
+      suppress_prompting_(false) {
   // Balanced in Shutdown();
   AddRef();
 }
 
 ShellDownloadManagerDelegate::~ShellDownloadManagerDelegate(){
 }
 
 
 void ShellDownloadManagerDelegate::SetDownloadManager(
     DownloadManager* download_manager) {
@@ skipping 131 matching lines @@
   }
   gtk_widget_destroy(dialog);
 #else
   NOTIMPLEMENTED();
 #endif
 
   callback.Run(result, DownloadItem::TARGET_DISPOSITION_PROMPT,
                DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS, result);
 }
 
-void ShellDownloadManagerDelegate::AddItemToPersistentStore(
-    DownloadItem* item) {
-  download_manager_->OnItemAddedToPersistentStore(
-      item->GetId(), --last_download_db_handle_);
-}
-
 void ShellDownloadManagerDelegate::SetDownloadBehaviorForTesting(
     const FilePath& default_download_path) {
   default_download_path_ = default_download_path;
   suppress_prompting_ = true;
 }
 
 }  // namespace content