Update to Chromium version 69.0.3476.0 (#571360)

libcef/browser/extensions/extension_system.cc

@@ -456,6 +456,7 @@ void CefExtensionSystem::InstallUpdate(
     const std::string& extension_id,
     const std::string& public_key,
     const base::FilePath& temp_dir,
+    bool install_immediately,
     InstallUpdateCallback install_update_callback) {
   NOTREACHED();
   base::DeleteFile(temp_dir, true /* recursive */);