Reset browser.check_default_browser on update.

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 "base/prefs/pref_registry_simple.h"
 #include "base/prefs/pref_service.h"
 #include "base/prefs/scoped_user_pref_update.h"
 #include "build/build_config.h"
@@ skipping 61 matching lines @@
       prefs::kDeleteHostedAppsData,
       false,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
   registry->RegisterIntegerPref(
       prefs::kDeleteTimePeriod,
       0,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
   registry->RegisterInt64Pref(prefs::kLastClearBrowsingDataTime, 0);
   registry->RegisterIntegerPref(prefs::kModuleConflictBubbleShown, 0);
   registry->RegisterBooleanPref(prefs::kCheckDefaultBrowser, true);
+  registry->RegisterBooleanPref(prefs::kResetCheckDefaultBrowser, true);
   registry->RegisterBooleanPref(prefs::kWebAppCreateOnDesktop, true);
   registry->RegisterBooleanPref(prefs::kWebAppCreateInAppsMenu, true);
   registry->RegisterBooleanPref(prefs::kWebAppCreateInQuickLaunchBar, true);
   registry->RegisterBooleanPref(
       prefs::kEnableTranslate,
       true,
       user_prefs::PrefRegistrySyncable::SYNCABLE_PREF);
   registry->RegisterStringPref(prefs::kCloudPrintEmail, std::string());
   registry->RegisterBooleanPref(prefs::kCloudPrintProxyEnabled, true);
   registry->RegisterBooleanPref(prefs::kCloudPrintSubmitEnabled, true);
@@ skipping 32 matching lines @@
   registry->RegisterBooleanPref(prefs::kPluginsAllowOutdated, false);
   registry->RegisterBooleanPref(prefs::kPluginsAlwaysAuthorize, false);
   registry->RegisterBooleanPref(prefs::kClearPluginLSODataEnabled, true);
   registry->RegisterBooleanPref(prefs::kHideWebStoreIcon, false);
 #if !defined(OS_MACOSX)
   registry->RegisterBooleanPref(prefs::kFullscreenAllowed, true);
 #endif
 }
 
 }  // namespace chrome