Add .ocx to the list of dangerous extensions

chrome/browser/download/download_extensions.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 <set>
 #include <string>
 
 #include "chrome/browser/download/download_extensions.h"
 
 #include "base/string_util.h"
@@ skipping 125 matching lines @@
   { "mdz", AllowOnUserGesture },
   { "mht", AllowOnUserGesture },
   { "mhtml", AllowOnUserGesture },
   { "mmc", AllowOnUserGesture },
   { "msc", AllowOnUserGesture },
   { "msh", AllowOnUserGesture },
   { "mshxml", AllowOnUserGesture },
   { "msi", AllowOnUserGesture },
   { "msp", AllowOnUserGesture },
   { "mst", AllowOnUserGesture },
-  { "ocx", AllowOnUserGesture },
+  { "ocx", Dangerous },
   { "ops", AllowOnUserGesture },
   { "pcd", AllowOnUserGesture },
   { "pif", AllowOnUserGesture },
   { "plg", AllowOnUserGesture },
   { "prf", AllowOnUserGesture },
   { "prg", AllowOnUserGesture },
   { "pst", AllowOnUserGesture },
   { "reg", AllowOnUserGesture },
   { "scf", AllowOnUserGesture },
   { "scr", AllowOnUserGesture },
@@ skipping 83 matching lines @@
   for (size_t i = 0; i < arraysize(kExecutableBlackList); ++i) {
     if (net::MatchesMimeType(kExecutableBlackList[i], mime_type))
       return false;
   }
   // We consider only other application types to be executable.
   return net::MatchesMimeType("application/*", mime_type);
 }
 
 
 }  // namespace download_util