Add a notice about other forms of history to the CBD dialog

chrome/browser/ui/browser_ui_prefs.cc

Index: chrome/browser/ui/browser_ui_prefs.cc
diff --git a/chrome/browser/ui/browser_ui_prefs.cc b/chrome/browser/ui/browser_ui_prefs.cc
index 53a0dae07aa170483f9dfd200cf67d93f4173ad2..aeb6ca42c805594082c897002613684a8d387efd 100644
--- a/chrome/browser/ui/browser_ui_prefs.cc
+++ b/chrome/browser/ui/browser_ui_prefs.cc
@@ -69,6 +69,8 @@ void RegisterBrowserUserPrefs(user_prefs::PrefRegistrySyncable* registry) {
       prefs::kDeleteTimePeriod,
       0,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
+  registry->RegisterIntegerPref(
+      prefs::kClearBrowsingDataHistoryNoticeShownTimes, 0);
   registry->RegisterInt64Pref(prefs::kLastClearBrowsingDataTime, 0);
   registry->RegisterIntegerPref(prefs::kModuleConflictBubbleShown, 0);
   registry->RegisterBooleanPref(prefs::kCheckDefaultBrowser, true);