add chromeWebstoreNavigationThrottle feature and flag set up

Bug: 399135314
Change-Id: Iacad846ceb5908f1d07827a386d92ae4aac85416
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6319096
Commit-Queue: marissa shen <[email protected]>
Reviewed-by: Igor Ruvinov <[email protected]>
Reviewed-by: Owen Min <[email protected]>
Cr-Commit-Position: refs/heads/main@{#1430358}
diff --git a/chrome/browser/enterprise/webstore/features.h b/chrome/browser/enterprise/webstore/features.h
new file mode 100644
index 0000000..ecad9ec
--- /dev/null
+++ b/chrome/browser/enterprise/webstore/features.h
@@ -0,0 +1,18 @@
+// Copyright 2025 The Chromium Authors
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef CHROME_BROWSER_ENTERPRISE_WEBSTORE_FEATURES_H_
+#define CHROME_BROWSER_ENTERPRISE_WEBSTORE_FEATURES_H_
+
+#include "base/feature_list.h"
+
+namespace enterprise::webstore {
+
+BASE_FEATURE(kChromeWebStoreNavigationThrottle,
+             "ChromeWebStoreNavigationThrottle",
+             base::FEATURE_DISABLED_BY_DEFAULT);
+
+}  // namespace enterprise::webstore
+
+#endif  // CHROME_BROWSER_ENTERPRISE_WEBSTORE_FEATURES_H_