1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 #include "chrome/browser/download/download_completion_blocker.h" 6 7 #include "base/logging.h" 8 DownloadCompletionBlocker()9DownloadCompletionBlocker::DownloadCompletionBlocker() 10 : is_complete_(false) { 11 } 12 ~DownloadCompletionBlocker()13DownloadCompletionBlocker::~DownloadCompletionBlocker() { 14 } 15 CompleteDownload()16void DownloadCompletionBlocker::CompleteDownload() { 17 // Do not run |callback_| more than once. 18 if (is_complete_) 19 return; 20 is_complete_ = true; 21 22 if (callback_.is_null()) 23 return; 24 callback_.Run(); 25 // |callback_| may delete |this|, so do not rely on |this| after running 26 // |callback_|! 27 } 28