Use improved VariationParamsManager to hide details.

components/ntp_snippets/remote/ntp_snippets_fetcher.cc

Index: components/ntp_snippets/remote/ntp_snippets_fetcher.cc
diff --git a/components/ntp_snippets/remote/ntp_snippets_fetcher.cc b/components/ntp_snippets/remote/ntp_snippets_fetcher.cc
index 360d4764d079f064895b53f462cb47b7dbd0c706..5fa014fc846e4970649ad87b7beece745fc2aea5 100644
--- a/components/ntp_snippets/remote/ntp_snippets_fetcher.cc
+++ b/components/ntp_snippets/remote/ntp_snippets_fetcher.cc
@@ -145,6 +145,16 @@ int Get5xxRetryCount(bool interactive_request) {
                          kBackground5xxRetriesName, 0));
 }
 
+bool IsSendingTopLanguagesEnabled() {
+  return IsBooleanParameterEnabled(kSendTopLanguagesName,
+                                   /*default_value=*/false);
+}
+
+bool IsSendingUserClassEnabled() {
+  return IsBooleanParameterEnabled(kSendUserClassName,
+                                   /*default_value=*/false);
+}
+
 bool UsesChromeContentSuggestionsAPI(const GURL& endpoint) {
   if (endpoint == kChromeReaderServer) {
     return false;
@@ -674,16 +684,6 @@ NTPSnippetsFetcher::RequestBuilder::SetUserClassifier(
   return *this;
 }
 
-bool NTPSnippetsFetcher::RequestBuilder::IsSendingTopLanguagesEnabled() const {
-  return IsBooleanParameterEnabled(kSendTopLanguagesName,
-                                   /*default_value=*/false);
-}
-
-bool NTPSnippetsFetcher::RequestBuilder::IsSendingUserClassEnabled() const {
-  return IsBooleanParameterEnabled(kSendUserClassName,
-                                   /*default_value=*/false);
-}
-
 std::string NTPSnippetsFetcher::RequestBuilder::BuildHeaders() const {
   net::HttpRequestHeaders headers;
   headers.SetHeader("Content-Type", "application/json; charset=UTF-8");