Make DownloadHistory observe manager, items

content/shell/shell_download_manager_delegate.h

 // 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.
 
 #ifndef CONTENT_SHELL_SHELL_DOWNLOAD_MANAGER_DELEGATE_H_
 #define CONTENT_SHELL_SHELL_DOWNLOAD_MANAGER_DELEGATE_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "content/public/browser/download_manager_delegate.h"
 
 namespace content {
 
 class DownloadManager;
 
 class ShellDownloadManagerDelegate
     : public DownloadManagerDelegate,
       public base::RefCountedThreadSafe<ShellDownloadManagerDelegate> {
  public:
   ShellDownloadManagerDelegate();
 
   void SetDownloadManager(DownloadManager* manager);
 
   virtual void Shutdown() OVERRIDE;
   virtual bool DetermineDownloadTarget(
       DownloadItem* download,
       const DownloadTargetCallback& callback) OVERRIDE;
-  virtual void AddItemToPersistentStore(DownloadItem* item) OVERRIDE;
 
   // Inhibits prompting and sets the default download path.
   void SetDownloadBehaviorForTesting(
       const FilePath& default_download_path);
 
  protected:
   // To allow subclasses for testing.
   virtual ~ShellDownloadManagerDelegate();
 
  private:
   friend class base::RefCountedThreadSafe<ShellDownloadManagerDelegate>;
 
 
   void GenerateFilename(int32 download_id,
                         const DownloadTargetCallback& callback,
                         const FilePath& generated_name,
                         const FilePath& suggested_directory);
   void OnDownloadPathGenerated(int32 download_id,
                                const DownloadTargetCallback& callback,
                                const FilePath& suggested_path);
   void ChooseDownloadPath(int32 download_id,
                           const DownloadTargetCallback& callback,
                           const FilePath& suggested_path);
 
   DownloadManager* download_manager_;
   FilePath default_download_path_;
   bool suppress_prompting_;
-  int64 last_download_db_handle_;
 
   DISALLOW_COPY_AND_ASSIGN(ShellDownloadManagerDelegate);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_SHELL_SHELL_DOWNLOAD_MANAGER_DELEGATE_H_