Put Kiosk App parameters into device settings.

chrome/browser/chromeos/policy/app_pack_updater.cc

Index: chrome/browser/chromeos/policy/app_pack_updater.cc
diff --git a/chrome/browser/chromeos/policy/app_pack_updater.cc b/chrome/browser/chromeos/policy/app_pack_updater.cc
index 1edc7bf4c9f27401c1dce8c00a1545741ef2286a..61fe56f94512bc609d320c7c722df6f3fc7d3447 100644
--- a/chrome/browser/chromeos/policy/app_pack_updater.cc
+++ b/chrome/browser/chromeos/policy/app_pack_updater.cc
@@ -43,9 +43,6 @@ const char kCRXFileExtension[] = ".crx";
 
 }  // namespace
 
-const char AppPackUpdater::kExtensionId[] = "extension-id";
-const char AppPackUpdater::kUpdateUrl[]   = "update-url";
-
 // A custom extensions::ExternalLoader that the AppPackUpdater creates and uses
 // to publish AppPack updates to the extensions system.
 class AppPackExternalLoader
@@ -191,8 +188,8 @@ void AppPackUpdater::LoadPolicy() {
       }
       std::string id;
       std::string update_url;
-      if (dict->GetString(kExtensionId, &id) &&
-          dict->GetString(kUpdateUrl, &update_url)) {
+      if (dict->GetString(chromeos::kAppPackKeyExtensionId, &id) &&
+          dict->GetString(chromeos::kAppPackKeyUpdateUrl, &update_url)) {
         app_pack_extensions_[id] = update_url;
       } else {
         LOG(WARNING) << "Failed to read required fields for an AppPack entry, "