Restart running apps when chrome restarts.

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 21d482a42c9de33d3b1a62b0eca17d7406815eea..7575113f19a0428aa0897d4e9ea9dbca15893f9f 100644
--- a/chrome/browser/prefs/browser_prefs.cc
+++ b/chrome/browser/prefs/browser_prefs.cc
@@ -17,6 +17,7 @@
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/extensions/api/commands/command_service.h"
 #include "chrome/browser/extensions/api/tabs/tabs.h"
+#include "chrome/browser/extensions/app_restore_service.h"
 #include "chrome/browser/extensions/component_loader.h"
 #include "chrome/browser/extensions/extension_prefs.h"
 #include "chrome/browser/extensions/extension_web_ui.h"
@@ -198,6 +199,7 @@ void RegisterLocalState(PrefService* local_state) {
 void RegisterUserPrefs(PrefService* user_prefs) {
   // User prefs
   AlternateErrorPageTabObserver::RegisterUserPrefs(user_prefs);
+  AppRestoreService::RegisterUserPrefs(user_prefs);
   AutofillManager::RegisterUserPrefs(user_prefs);
   bookmark_utils::RegisterUserPrefs(user_prefs);
   ChromeContentBrowserClient::RegisterUserPrefs(user_prefs);