Don't prompt to save malicious downloads on exit

content/browser/download/download_manager_impl.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.
 
 #ifndef CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_MANAGER_IMPL_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_MANAGER_IMPL_H_
 
 #include <map>
 #include <set>
 
@@ skipping 71 matching lines @@
       const base::Time& end_time,
       const std::string& etag,
       const std::string& last_modified,
       int64 received_bytes,
       int64 total_bytes,
       content::DownloadItem::DownloadState state,
       DownloadDangerType danger_type,
       DownloadInterruptReason interrupt_reason,
       bool opened) OVERRIDE;
   virtual int InProgressCount() const OVERRIDE;
+  virtual int NonMaliciousInProgressCount() const OVERRIDE;
   virtual BrowserContext* GetBrowserContext() const OVERRIDE;
   virtual void CheckForHistoryFilesRemoval() OVERRIDE;
   virtual DownloadItem* GetDownload(uint32 id) OVERRIDE;
 
   // For testing; specifically, accessed from TestFileErrorInjector.
   void SetDownloadItemFactoryForTesting(
       scoped_ptr<DownloadItemFactory> item_factory);
   void SetDownloadFileFactoryForTesting(
       scoped_ptr<DownloadFileFactory> file_factory);
   virtual DownloadFileFactory* GetDownloadFileFactoryForTesting();
@@ skipping 84 matching lines @@
   net::NetLog* net_log_;
 
   base::WeakPtrFactory<DownloadManagerImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadManagerImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_MANAGER_IMPL_H_