Unknown options in extension manifest file are silently ignored

chrome/common/extensions/extension.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/common/extensions/extension.h"
 
 #include <algorithm>
 
 #include "base/base64.h"
 #include "base/basictypes.h"
@@ skipping 3433 matching lines @@
     return false;
   origin_only_pattern.SetHost(origin.host());
   origin_only_pattern.SetPath("/*");
 
   URLPatternSet origin_only_pattern_list;
   origin_only_pattern_list.AddPattern(origin_only_pattern);
 
   return web_extent().OverlapsWith(origin_only_pattern_list);
 }
 
+bool Extension::HasUnrecognizedManifestKeys(
+    const std::vector<const std::string*>** unrecognized_keys) const {
+  return manifest_->HasUnrecognizedKeys(unrecognized_keys);
+}
+
 Extension::SyncType Extension::GetSyncType() const {
   if (!IsSyncable()) {
     // We have a non-standard location.
     return SYNC_TYPE_NONE;
   }
 
   // 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 77 matching lines @@
     already_disabled(false),
     extension(extension) {}
 
 UpdatedExtensionPermissionsInfo::UpdatedExtensionPermissionsInfo(
     const Extension* extension,
     const ExtensionPermissionSet* permissions,
     Reason reason)
     : reason(reason),
       extension(extension),
       permissions(permissions) {}