[ImportantSites] Implementing dialog level blacklisting and blacklist expiration

chrome/browser/prefs/browser_prefs.cc

Index: chrome/browser/prefs/browser_prefs.cc
diff --git a/chrome/browser/prefs/browser_prefs.cc b/chrome/browser/prefs/browser_prefs.cc
index f28f1ce5b8218fb6fc41ecfb58a6f0a71afb46f8..36712d0889610db9255e6412526cb1114107a907 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -20,6 +20,7 @@
 #include "chrome/browser/custom_handlers/protocol_handler_registry.h"
 #include "chrome/browser/devtools/devtools_window.h"
 #include "chrome/browser/download/download_prefs.h"
+#include "chrome/browser/engagement/important_sites_util.h"
 #include "chrome/browser/external_protocol/external_protocol_handler.h"
 #include "chrome/browser/first_run/first_run.h"
 #include "chrome/browser/geolocation/geolocation_prefs.h"
@@ -488,6 +489,7 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   dom_distiller::DistilledPagePrefs::RegisterProfilePrefs(registry);
   DownloadPrefs::RegisterProfilePrefs(registry);
   HostContentSettingsMap::RegisterProfilePrefs(registry);
+  ImportantSitesUtil::RegisterProfilePrefs(registry);
   IncognitoModePrefs::RegisterProfilePrefs(registry);
   InstantUI::RegisterProfilePrefs(registry);
   NavigationCorrectionTabObserver::RegisterProfilePrefs(registry);