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

chrome/browser/ui/browser_ui_prefs.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/browser_ui_prefs.h"
 
 #include "build/build_config.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
@@ skipping 51 matching lines @@
       false,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
   registry->RegisterBooleanPref(
       prefs::kDeleteHostedAppsData,
       false,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
   registry->RegisterIntegerPref(
       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);
   bool reset_check_default = false;
 #if defined(OS_WIN)
   reset_check_default = base::win::GetVersion() >= base::win::VERSION_WIN10;
 #endif
   registry->RegisterBooleanPref(prefs::kResetCheckDefaultBrowser,
                                 reset_check_default);
   registry->RegisterBooleanPref(prefs::kWebAppCreateOnDesktop, true);
@@ skipping 59 matching lines @@
   registry->RegisterBooleanPref(
       prefs::kHideFullscreenToolbar,
       false,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
 #else
   registry->RegisterBooleanPref(prefs::kFullscreenAllowed, true);
 #endif
 }
 
 }  // namespace chrome