Removing x-x509-user-cert mime handler.

chrome/browser/download/chrome_download_manager_delegate.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 "chrome/browser/download/chrome_download_manager_delegate.h"
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/bind.h"
@@ skipping 447 matching lines @@
     browser_displayer.reset(new chrome::ScopedTabbedBrowserDisplayer(
         profile_, chrome::GetActiveDesktop()));
     browser = browser_displayer->browser();
   }
   content::OpenURLParams params(
       net::FilePathToFileURL(download->GetTargetFilePath()),
       content::Referrer(),
       NEW_FOREGROUND_TAB,
       ui::PAGE_TRANSITION_LINK,
       false);
+
+  if (download->GetOriginalMimeType() == "application/x-x509-user-cert") {
+    params = content::OpenURLParams(GURL("chrome://settings/certificates"),
+                                    content::Referrer(), NEW_FOREGROUND_TAB,
+                                    ui::PAGE_TRANSITION_LINK, false);
+  }
+
   browser->OpenURL(params);
   RecordDownloadOpenMethod(DOWNLOAD_OPEN_METHOD_DEFAULT_BROWSER);
 #else
   // ShouldPreferOpeningInBrowser() should never be true on Android.
   NOTREACHED();
 #endif
 }
 
 void ChromeDownloadManagerDelegate::ShowDownloadInShell(
     DownloadItem* download) {
@@ skipping 235 matching lines @@
     const content::DownloadTargetCallback& callback,
     scoped_ptr<DownloadTargetInfo> target_info) {
   DCHECK_CURRENTLY_ON(BrowserThread::UI);
   DownloadItem* item = download_manager_->GetDownload(download_id);
   if (item) {
     if (!target_info->target_path.empty() &&
         IsOpenInBrowserPreferreredForFile(target_info->target_path) &&
         target_info->is_filetype_handled_safely)
       DownloadItemModel(item).SetShouldPreferOpeningInBrowser(true);
 
+#if defined(OS_LINUX) || defined(OS_CHROMEOS)
+    if (item->GetOriginalMimeType() == "application/x-x509-user-cert")
+      DownloadItemModel(item).SetShouldPreferOpeningInBrowser(true);
+#endif
+
     if (target_info->is_dangerous_file)
       DownloadItemModel(item).SetIsDangerousFileBasedOnType(true);
   }
   callback.Run(target_info->target_path,
                target_info->target_disposition,
                target_info->danger_type,
                target_info->intermediate_path);
 }
 
 bool ChromeDownloadManagerDelegate::IsOpenInBrowserPreferreredForFile(
@@ skipping 19 matching lines @@
       path.MatchesExtension(FILE_PATH_LITERAL(".xht")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xhtm")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xhtml")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xsl")) ||
       path.MatchesExtension(FILE_PATH_LITERAL(".xslt"))) {
     return true;
   }
 #endif
   return false;
 }