Refactor app_list_util.h into AppListService abstract base.

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 b1186f8816c7cf545de5557e4808737b106ef405..327c5c36af437de36d129b4c39635e9651275dde 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -69,7 +69,7 @@
 #include "chrome/browser/task_manager/task_manager.h"
 #include "chrome/browser/translate/translate_prefs.h"
 #include "chrome/browser/ui/alternate_error_tab_observer.h"
-#include "chrome/browser/ui/app_list/app_list_util.h"
+#include "chrome/browser/ui/app_list/app_list_service.h"
 #include "chrome/browser/ui/browser_instant_controller.h"
 #include "chrome/browser/ui/browser_ui_prefs.h"
 #include "chrome/browser/ui/network_profile_bubble.h"
@@ -172,6 +172,7 @@ void RegisterLocalState(PrefRegistrySimple* registry) {
   registry->RegisterIntegerPref(prefs::kMultipleProfilePrefMigration, 0);
 
   // Please keep this list alphabetized.
+  AppListService::RegisterPrefs(registry);
   apps::RegisterPrefs(registry);
   browser_shutdown::RegisterPrefs(registry);
   BrowserProcessImpl::RegisterPrefs(registry);
@@ -250,10 +251,6 @@ void RegisterLocalState(PrefRegistrySimple* registry) {
 #if defined(OS_MACOSX)
   confirm_quit::RegisterLocalState(registry);
 #endif
-
-#if defined(ENABLE_SETTINGS_APP)
-  chrome::RegisterAppListPrefs(registry);
-#endif
 }
 
 void RegisterUserPrefs(PrefService* user_prefs,