A few minor changes to the chrome.downloads extension API

content/public/browser/download_item.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.
 //
 // Each download is represented by a DownloadItem, and all DownloadItems
 // are owned by the DownloadManager which maintains a global list of all
 // downloads. DownloadItems are created when a user initiates a download,
 // and exist for the duration of the browser life time.
 //
 // Download observers:
@@ skipping 217 matching lines @@
   // GetState() != COMPLETED.
   virtual const std::string& GetHash() const = 0;
 
   // Intermediate hash state, for persisting partial downloads.
   virtual const std::string& GetHashState() const = 0;
 
   // True if the file associated with the download has been removed by
   // external action.
   virtual bool GetFileExternallyRemoved() const = 0;
 
+  // If the file is successfully deleted, then GetFileExternallyRemoved() will
+  // become true and DownloadItem::OnDownloadUpdated() will be called. Does
+  // nothing if GetState() == COMPLETE or GetFileExternallyRemoved() is already
+  // true.
+  virtual void DeleteFile() = 0;
+
   // True if the file that will be written by the download is dangerous
   // and we will require a call to ValidateDangerousDownload() to complete.
   // False if the download is safe or that function has been called.
   virtual bool IsDangerous() const = 0;
 
   // Why |safety_state_| is not SAFE.
   virtual DownloadDangerType GetDangerType() const = 0;
 
   //    Progress State accessors -----------------------------------------------
 
@@ skipping 67 matching lines @@
   // return |name|. Has no effect on the final target filename.
   virtual void SetDisplayName(const base::FilePath& name) = 0;
 
   // Debug/testing -------------------------------------------------------------
   virtual std::string DebugString(bool verbose) const = 0;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_DOWNLOAD_ITEM_H_