Tweak the auto-open algorithm to permit JNLP to auto-open iff the user has...

chrome/browser/download/download_manager.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/download/download_manager.h"
 
 #include "base/callback.h"
 #include "base/file_util.h"
 #include "base/logging.h"
 #include "base/path_service.h"
@@ skipping 271 matching lines @@
     } else {
       info->suggested_path = download_prefs_->download_path();
     }
     info->suggested_path = info->suggested_path.Append(generated_name);
   } else {
     info->suggested_path = info->save_info.file_path;
   }
 
   if (!info->prompt_user_for_save_location &&
       info->save_info.file_path.empty()) {
-    info->is_dangerous = download_util::IsDangerous(info, profile());
+    info->is_dangerous = download_util::IsDangerous(
+        info, profile(), ShouldOpenFileBasedOnExtension(info->suggested_path));
   }
 
   // We need to move over to the download thread because we don't want to stat
   // the suggested path on the UI thread.
   // We can only access preferences on the UI thread, so check the download path
   // now and pass the value to the FILE thread.
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       NewRunnableMethod(
           this,
@@ skipping 826 matching lines @@
     observed_download_manager_->RemoveObserver(this);
 }
 
 void DownloadManager::OtherDownloadManagerObserver::ModelChanged() {
   observing_download_manager_->NotifyModelChanged();
 }
 
 void DownloadManager::OtherDownloadManagerObserver::ManagerGoingDown() {
   observed_download_manager_ = NULL;
 }