DownloadManagerDelegate::ShouldCompleteDownload(callback)

chrome/browser/download/download_completion_blocker.cc

Index: chrome/browser/download/download_completion_blocker.cc
diff --git a/chrome/browser/download/download_completion_blocker.cc b/chrome/browser/download/download_completion_blocker.cc
new file mode 100644
index 0000000000000000000000000000000000000000..d792a69f30b9965a15875cdf7ea27de1ce26aa6b
--- /dev/null
+++ b/chrome/browser/download/download_completion_blocker.cc
@@ -0,0 +1,20 @@
+// 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 "chrome/browser/download/download_completion_blocker.h"
+
+DownloadCompletionBlocker::DownloadCompletionBlocker()
+  : is_complete_(false) {
+}
+
+DownloadCompletionBlocker::~DownloadCompletionBlocker() {
+}
+
+void DownloadCompletionBlocker::CompleteDownload() {
+  is_complete_ = true;
+  if (!callback_.is_null()) {
+    callback_.Run();
+    callback_.Reset();
+  }
+}