[NTP Snippets] Add a flag to not restrict snippets by ML suggestions

components/ntp_snippets/ntp_snippets_service.cc

Index: components/ntp_snippets/ntp_snippets_service.cc
diff --git a/components/ntp_snippets/ntp_snippets_service.cc b/components/ntp_snippets/ntp_snippets_service.cc
index c22b563dee7cc1091ed21cff1b90558e5738d360..b03d0488a29a2bf0a8e1aa985bea6066d9d68813 100644
--- a/components/ntp_snippets/ntp_snippets_service.cc
+++ b/components/ntp_snippets/ntp_snippets_service.cc
@@ -254,6 +254,11 @@ void NTPSnippetsService::OnJsonError(const std::string& snippets_json,
 
 void NTPSnippetsService::FetchSnippetsImpl(
     const std::vector<std::string>& hosts) {
+  if (base::CommandLine::ForCurrentProcess()->HasSwitch(
+          switches::kDontRestrict)) {
+    snippets_fetcher_->FetchSnippets(std::vector<std::string>());
+    return;
+  }
   if (!hosts.empty())
     snippets_fetcher_->FetchSnippets(hosts);
 }