1 files changed, 3 insertions, 0 deletions
diff --git a/chromium/content/browser/mime_registry_message_filter.h b/chromium/content/browser/mime_registry_message_filter.h
index e86fe190b1d..4a719a5f2f1 100644
--- a/chromium/content/browser/mime_registry_message_filter.h
+++ b/chromium/content/browser/mime_registry_message_filter.h
@@ -27,6 +27,9 @@ class MimeRegistryMessageFilter : public BrowserMessageFilter {
                                   std::string* mime_type);
   void OnGetMimeTypeFromFile(const base::FilePath& file_path,
                              std::string* mime_type);
+  void OnGetPreferredExtensionForMimeType(
+      const std::string& mime_type,
+      base::FilePath::StringType* extension);
 };
 
 }  // namespace content