Index: dev/chrome/browser/background/background_mode_manager.cc
===================================================================
--- dev.orig/chrome/browser/background/background_mode_manager.cc
+++ dev/chrome/browser/background/background_mode_manager.cc
@@ -351,7 +351,7 @@ void BackgroundModeManager::RegisterPref
   registry->RegisterBooleanPref(prefs::kChromeCreatedLoginItem, false);
   registry->RegisterBooleanPref(prefs::kMigratedLoginItemPref, false);
 #endif
-  registry->RegisterBooleanPref(prefs::kBackgroundModeEnabled, true);
+  registry->RegisterBooleanPref(prefs::kBackgroundModeEnabled, false);
 }
 
 void BackgroundModeManager::RegisterProfile(Profile* profile) {
