[Offline Prefetch] Backoff support for PrefetchBackgroundTask

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 09ecf6da175037a39edf6508ac5ee4cdcc76642f..c0acb3178e4cbc232cbf50beaea23c160d365097 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -86,6 +86,7 @@
 #include "components/ntp_snippets/sessions/foreign_sessions_suggestions_provider.h"
 #include "components/ntp_snippets/user_classifier.h"
 #include "components/ntp_tiles/most_visited_sites.h"
+#include "components/offline_pages/features/features.h"
 #include "components/omnibox/browser/zero_suggest_provider.h"
 #include "components/password_manager/core/browser/password_bubble_experiment.h"
 #include "components/password_manager/core/browser/password_manager.h"
@@ -142,6 +143,10 @@
 #include "extensions/browser/extension_prefs.h"
 #endif  // BUILDFLAG(ENABLE_EXTENSIONS)
 
+#if BUILDFLAG(ENABLE_OFFLINE_PAGES)
+#include "chrome/browser/android/offline_pages/prefetch/prefetch_background_task.h"
+#endif
+
 #if BUILDFLAG(ENABLE_PLUGINS)
 #include "chrome/browser/plugins/plugins_resource_service.h"
 #endif
@@ -676,6 +681,10 @@ void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
 #endif
 
   registry->RegisterDictionaryPref(kDistroDict);
+
+#if BUILDFLAG(ENABLE_OFFLINE_PAGES)
+  offline_pages::RegisterPrefetchBackgroundTaskPrefs(registry);
+#endif
 }
 
 void RegisterUserProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {