Add generic functions for getting typed variation parameter values

chrome/browser/ntp_snippets/download_suggestions_provider.cc

Index: chrome/browser/ntp_snippets/download_suggestions_provider.cc
diff --git a/chrome/browser/ntp_snippets/download_suggestions_provider.cc b/chrome/browser/ntp_snippets/download_suggestions_provider.cc
index 1189dd79942bbbc9192d5a45bfca4d5275f14de7..7dfb81d6a5de40afa57ad19a561fe23753aaf929 100644
--- a/chrome/browser/ntp_snippets/download_suggestions_provider.cc
+++ b/chrome/browser/ntp_snippets/download_suggestions_provider.cc
@@ -25,6 +25,7 @@
 #include "components/offline_pages/core/offline_page_model_query.h"
 #include "components/prefs/pref_registry_simple.h"
 #include "components/prefs/pref_service.h"
+#include "components/variations/variations_associated_data.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/gfx/image/image.h"
 
@@ -51,7 +52,7 @@ const char* kMaxSuggestionsCountParamName = "downloads_max_count";
 int GetMaxSuggestionsCount() {
   bool assets_enabled =
       base::FeatureList::IsEnabled(features::kAssetDownloadSuggestionsFeature);
-  return ntp_snippets::GetParamAsInt(
+  return variations::GetVariationParamByFeatureAsInt(
       assets_enabled ? features::kAssetDownloadSuggestionsFeature
                      : features::kOfflinePageDownloadSuggestionsFeature,
       kMaxSuggestionsCountParamName, kDefaultMaxSuggestionsCount);