Make DownloadHistory observe manager, items

chrome/browser/download/chrome_download_manager_delegate.h

Index: chrome/browser/download/chrome_download_manager_delegate.h
diff --git a/chrome/browser/download/chrome_download_manager_delegate.h b/chrome/browser/download/chrome_download_manager_delegate.h
index f4535d137b914a2eb18e54bd9e4e66fe0d563b36..ffd7fe4483e953f9c7838a778d68fe81127148bb 100644
--- a/chrome/browser/download/chrome_download_manager_delegate.h
+++ b/chrome/browser/download/chrome_download_manager_delegate.h
@@ -75,17 +75,6 @@ class ChromeDownloadManagerDelegate
       const base::Closure& complete_callback) OVERRIDE;
   virtual bool ShouldOpenDownload(content::DownloadItem* item) OVERRIDE;
   virtual bool GenerateFileHash() OVERRIDE;
-  virtual void AddItemToPersistentStore(content::DownloadItem* item) OVERRIDE;
-  virtual void UpdateItemInPersistentStore(
-      content::DownloadItem* item) OVERRIDE;
-  virtual void UpdatePathForItemInPersistentStore(
-      content::DownloadItem* item,
-      const FilePath& new_path) OVERRIDE;
-  virtual void RemoveItemFromPersistentStore(
-      content::DownloadItem* item) OVERRIDE;
-  virtual void RemoveItemsFromPersistentStoreBetween(
-      base::Time remove_begin,
-      base::Time remove_end) OVERRIDE;
   virtual void GetSaveDir(content::WebContents* web_contents,
                           FilePath* website_save_dir,
                           FilePath* download_save_dir,
@@ -102,7 +91,6 @@ class ChromeDownloadManagerDelegate
   void ClearLastDownloadPath();
 
   DownloadPrefs* download_prefs() { return download_prefs_.get(); }
-  DownloadHistory* download_history() { return download_history_.get(); }
 
  protected:
   // So that test classes can inherit from this for override purposes.
@@ -213,9 +201,6 @@ class ChromeDownloadManagerDelegate
       content::DownloadDangerType danger_type,
       const FilePath& target_path);
 
-  // Callback from history system.
-  void OnItemAddedToPersistentStore(int32 download_id, int64 db_handle);
-
   // Check policy of whether we should open this download with a web intents
   // dispatch.
   bool ShouldOpenWithWebIntents(const content::DownloadItem* item);