[Remote suggestions] Prioritize wifi for soft fetches.

components/ntp_snippets/pref_names.cc

Index: components/ntp_snippets/pref_names.cc
diff --git a/components/ntp_snippets/pref_names.cc b/components/ntp_snippets/pref_names.cc
index 271c8900c1d2943a5540aa322ce44b5834ce303f..fb5582a6725b6516ca97271710ca138aae67e138 100644
--- a/components/ntp_snippets/pref_names.cc
+++ b/components/ntp_snippets/pref_names.cc
@@ -13,11 +13,11 @@ const char kRemoteSuggestionCategories[] = "ntp_snippets.remote_categories";
 
 const char kSnippetLastFetchAttempt[] = "ntp_snippets.last_fetch_attempt";
 
-const char kSnippetSoftFetchingIntervalOnUsageEvent[] =
-    "ntp_snippets.soft_fetching_interval_on_usage_event";
+const char kSnippetSoftFetchingIntervalWifi[] =
+    "ntp_snippets.soft_fetching_interval_wifi";
 
-const char kSnippetSoftFetchingIntervalOnNtpOpened[] =
-    "ntp_snippets.soft_fetching_interval_on_ntp_opened";
+const char kSnippetSoftFetchingIntervalFallback[] =
+    "ntp_snippets.soft_fetching_interval_fallback";
 
 const char kSnippetPersistentFetchingIntervalWifi[] =
     "ntp_snippets.fetching_interval_wifi";