Remove kDistroDict from Preferences.

chrome/installer/util/master_preferences.cc

Index: chrome/installer/util/master_preferences.cc
diff --git a/chrome/installer/util/master_preferences.cc b/chrome/installer/util/master_preferences.cc
index 2f7ccb696098ecf766689e8fc515caf039eacc72..c48a4f450c465c4332024050e26665a296a1b53e 100644
--- a/chrome/installer/util/master_preferences.cc
+++ b/chrome/installer/util/master_preferences.cc
@@ -19,6 +19,7 @@
 #include "chrome/installer/util/master_preferences_constants.h"
 #include "chrome/installer/util/util_constants.h"
 #include "components/variations/pref_names.h"
+#include "rlz/features/features.h"
 
 namespace {
 
@@ -207,17 +208,32 @@ bool MasterPreferences::InitializeFromString(const std::string& json_data) {
 }
 
 void MasterPreferences::EnforceLegacyPreferences() {
+  // Boolean. This is a legacy preference and should no longer be used; it is
+  // kept around so that old master_preferences which specify
+  // "create_all_shortcuts":false still enforce the new
+  // "do_not_create_(desktop|quick_launch)_shortcut" preferences. Setting this
+  // to true no longer has any impact.
+  static constexpr char kCreateAllShortcuts[] = "create_all_shortcuts";
+
   // If create_all_shortcuts was explicitly set to false, set
   // do_not_create_(desktop|quick_launch)_shortcut to true.
   bool create_all_shortcuts = true;
-  GetBool(installer::master_preferences::kCreateAllShortcuts,
-          &create_all_shortcuts);
+  GetBool(kCreateAllShortcuts, &create_all_shortcuts);
   if (!create_all_shortcuts) {
     distribution_->SetBoolean(
         installer::master_preferences::kDoNotCreateDesktopShortcut, true);
     distribution_->SetBoolean(
         installer::master_preferences::kDoNotCreateQuickLaunchShortcut, true);
   }
+
+#if BUILDFLAG(ENABLE_RLZ)
+  // Map the RLZ ping delay shipped in the distribution dictionary into real
+  // prefs.
+  static constexpr char kDistroPingDelay[] = "ping_delay";
+  int rlz_ping_delay = 0;
+  if (GetInt(kDistroPingDelay, &rlz_ping_delay))
+    master_dictionary_->SetInteger(prefs::kRlzPingDelaySeconds, rlz_ping_delay);
+#endif  // BUILDFLAG(ENABLE_RLZ)
 }
 
 bool MasterPreferences::GetBool(const std::string& name, bool* value) const {