[Extensions Click-to-Script] Add flag for extensions menu access control

Bug: 1239772
Change-Id: Ic1b4468d273dee0bcb9643f149048e0f14f04a9c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3075408
Commit-Queue: Emilia Paz <[email protected]>
Reviewed-by: Peter Boström <[email protected]>
Cr-Commit-Position: refs/heads/master@{#911954}
diff --git a/chrome/browser/flag_descriptions.cc b/chrome/browser/flag_descriptions.cc
index 389f88bd..c37e875b 100644
--- a/chrome/browser/flag_descriptions.cc
+++ b/chrome/browser/flag_descriptions.cc
@@ -1231,6 +1231,12 @@
 const char kExtensionContentVerificationEnforceStrict[] =
     "Enforce strict (hard fail if we can't get hashes)";
 
+const char kExtensionsMenuAccessControlName[] =
+    "Extensions Menu Access Control";
+const char kExtensionsMenuAccessControlDescription[] =
+    "Enables a redesigned extensions menu that allows the user to control "
+    "extensions site access.";
+
 const char kExtensionsOnChromeUrlsName[] = "Extensions on chrome:// URLs";
 const char kExtensionsOnChromeUrlsDescription[] =
     "Enables running extensions on chrome:// URLs, where extensions explicitly "