Fix warning prompting on closing a window that will cancel downloads.

chrome/browser/profiles/profile.cc

 // Copyright (c) 2011 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/profiles/profile.h"
 
 #include <string>
 
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
@@ skipping 833 matching lines @@
 };
 #endif
 
 Profile* Profile::CreateOffTheRecordProfile() {
 #if defined(OS_CHROMEOS)
   if (Profile::IsGuestSession())
     return new GuestSessionProfile(this);
 #endif
   return new OffTheRecordProfileImpl(this);
 }
+
+int Profile::DownloadCount() {
+  return HasCreatedDownloadManager() ?
+      GetDownloadManager()->in_progress_count() : 0;
+}