Implement kiosk multiple apps feature.

extensions/common/common_manifest_handlers.cc

Index: extensions/common/common_manifest_handlers.cc
diff --git a/extensions/common/common_manifest_handlers.cc b/extensions/common/common_manifest_handlers.cc
index 95293215947b248282790b67c3595f6dc9db91c9..c11accbae7b3479ed2f0a162d255e000247804a6 100644
--- a/extensions/common/common_manifest_handlers.cc
+++ b/extensions/common/common_manifest_handlers.cc
@@ -18,6 +18,7 @@
 #include "extensions/common/manifest_handlers/icons_handler.h"
 #include "extensions/common/manifest_handlers/incognito_info.h"
 #include "extensions/common/manifest_handlers/kiosk_mode_info.h"
+#include "extensions/common/manifest_handlers/kiosk_secondary_apps_info.h"
 #include "extensions/common/manifest_handlers/launcher_page_info.h"
 #include "extensions/common/manifest_handlers/mime_types_handler.h"
 #include "extensions/common/manifest_handlers/nacl_modules_handler.h"
@@ -44,6 +45,7 @@ void RegisterCommonManifestHandlers() {
   (new IconsHandler)->Register();
   (new IncognitoHandler)->Register();
   (new KioskModeHandler)->Register();
+  (new KioskSecondaryAppsHandler)->Register();
   (new LauncherPageHandler)->Register();
   (new MimeTypesHandlerParser)->Register();
 #if !defined(DISABLE_NACL)