Unknown options in extension manifest file are silently ignored

chrome/common/extensions/extension.cc

Index: chrome/common/extensions/extension.cc
diff --git a/chrome/common/extensions/extension.cc b/chrome/common/extensions/extension.cc
index ee4aba939c9c210fb15b96b45427270fd63773da..2b99a25a4d181e2eaf10b56108d3770aa0f6b326 100644
--- a/chrome/common/extensions/extension.cc
+++ b/chrome/common/extensions/extension.cc
@@ -3451,6 +3451,11 @@ bool Extension::OverlapsWithOrigin(const GURL& origin) const {
   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.