Don't prompt to save malicious downloads on exit

content/browser/download/download_manager_impl.cc

 // 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 "content/browser/download/download_manager_impl.h"
 
 #include <iterator>
 
 #include "base/bind.h"
 #include "base/callback.h"
@@ skipping 655 matching lines @@
 int DownloadManagerImpl::InProgressCount() const {
   int count = 0;
   for (DownloadMap::const_iterator it = downloads_.begin();
        it != downloads_.end(); ++it) {
     if (it->second->GetState() == DownloadItem::IN_PROGRESS)
       ++count;
   }
   return count;
 }
 
+int DownloadManagerImpl::NonDangerousInProgressCount() const {
+  int count = 0;
+  for (DownloadMap::const_iterator it = downloads_.begin();
+       it != downloads_.end(); ++it) {
+    // Exclude dangerous items, unless they are
+    // DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE
+    if ((it->second->GetState() == DownloadItem::IN_PROGRESS) &&
+        !(it->second->IsDangerous() &&
+        (it->second->GetDangerType() != DOWNLOAD_DANGER_TYPE_DANGEROUS_FILE))) {
+      ++count;
+    }
+  }
+  return count;
+}
+
 DownloadItem* DownloadManagerImpl::GetDownload(uint32 download_id) {
   return ContainsKey(downloads_, download_id) ? downloads_[download_id] : NULL;
 }
 
 void DownloadManagerImpl::GetAllDownloads(DownloadVector* downloads) {
   for (DownloadMap::iterator it = downloads_.begin();
        it != downloads_.end(); ++it) {
     downloads->push_back(it->second);
   }
 }
@@ skipping 12 matching lines @@
   if (delegate_)
     delegate_->OpenDownload(download);
 }
 
 void DownloadManagerImpl::ShowDownloadInShell(DownloadItemImpl* download) {
   if (delegate_)
     delegate_->ShowDownloadInShell(download);
 }
 
 }  // namespace content