Download resumption - Preliminary

content/browser/download/download_file_manager.cc

Index: content/browser/download/download_file_manager.cc
diff --git a/content/browser/download/download_file_manager.cc b/content/browser/download/download_file_manager.cc
index 7577208cf20139e4b2942b230b6cc5bc71d5b035..58356e7c574534450ed2950642d808363fab18bd 100644
--- a/content/browser/download/download_file_manager.cc
+++ b/content/browser/download/download_file_manager.cc
@@ -119,6 +119,24 @@ void DownloadFileManager::CompleteDownload(
   EraseDownload(global_id);
 }
 
+void DownloadFileManager::InterruptDownload(
+    DownloadId id, const base::Closure& callback) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
+
+  if (!ContainsKey(downloads_, id))
+    return;
+
+  DownloadFile* download_file = downloads_[id];
+
+  VLOG(20) << " " << __FUNCTION__ << "()"
+    << " id = " << id
+    << " download_file = " << download_file->DebugString();
+
+  download_file->Detach(callback);
+
+  EraseDownload(id);
+}
+
 void DownloadFileManager::OnDownloadManagerShutdown(DownloadManager* manager) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
   DCHECK(manager);