[chrome-gnome-shell] Update Japanese translation

[Translations User D-L <translations src gnome org>]

commit d6054d0b82b8ff992ce38a6263b745a40212b452
Author: Ryuta Fujii <translation sicklylife jp>
Date:   Thu Mar 7 09:53:40 2019 +0000

    Update Japanese translation

 po/ja.po | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/po/ja.po b/po/ja.po
index c719906..fda0fe5 100644
--- a/po/ja.po
+++ b/po/ja.po
@@ -8,7 +8,7 @@ msgstr ""
 "Project-Id-Version: chrome-gnome-shell master\n"
 "Report-Msgid-Bugs-To: ykonotopov gnome org\n"
 "POT-Creation-Date: 2018-01-28 18:25+0000\n"
-"PO-Revision-Date: 2019-02-23 18:12+0900\n"
+"PO-Revision-Date: 2019-03-07 18:50+0900\n"
 "Last-Translator: sicklylife <translation sicklylife jp>\n"
 "Language-Team: Japanese <gnome-translation gnome gr jp>\n"
 "Language: ja\n"
@@ -47,7 +47,7 @@ msgstr "拡張機能"
 #. This is a part of phrase like 'Extension Top Icons must be downgraded'.
 #: chrome-gnome-shell-key-extension_status_downgrade:1
 msgid "must be downgraded"
-msgstr "はダウングレードする必要があります"
+msgstr "はダウングレードされます"
 
 #. This is a part of phrase like 'Extension Top Icons can be upgraded'.
 #: chrome-gnome-shell-key-extension_status_upgrade:1