Check for updates for a user script only if it has an update URL.

chrome/browser/sync/glue/extension_util.cc

 // Copyright (c) 2010 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/sync/glue/extension_util.h"
 
 #include <sstream>
 
 #include "base/logging.h"
 #include "base/scoped_ptr.h"
@@ skipping 10 matching lines @@
   if (extension.is_theme()) {
     return false;
   }
 
   // TODO(akalin): Add Extensions::is_app().
   if (!extension.GetFullLaunchURL().is_empty()) {
     // We have an app.
     return false;
   }
 
+  // Reject converted user scripts that don't have an auto-update URL.
+  if (extension.converted_from_user_script() &&
+      extension.update_url().is_empty()) {
+    return false;
+  }
+
   // TODO(akalin): Figure out if we need to allow some other types.
   if (extension.location() != Extension::INTERNAL) {
     // We have a non-standard location.
     return false;
   }
 
   // Disallow extensions with non-gallery auto-update URLs for now.
   //
   // TODO(akalin): Relax this restriction once we've put in UI to
   // approve synced extensions.
@@ skipping 201 matching lines @@
     // |specifics| has a more recent or the same version, so merge it
     // in.
     CopyNonUserProperties(specifics, merged_specifics);
     if (merge_user_properties) {
       CopyUserProperties(specifics, merged_specifics);
     }
   }
 }
 
 }  // namespace browser_sync