Updates the IME list when the IME has refreshed.

ash/test/test_system_tray_delegate.cc

Index: ash/test/test_system_tray_delegate.cc
diff --git a/ash/test/test_system_tray_delegate.cc b/ash/test/test_system_tray_delegate.cc
index f620a4b572c8598fbe659e79f4a32b8fa7253015..1ffe01a306d86b80bcf4665b0c0cb2b25db64440 100644
--- a/ash/test/test_system_tray_delegate.cc
+++ b/ash/test/test_system_tray_delegate.cc
@@ -67,6 +67,10 @@ void TestSystemTrayDelegate::SetCurrentIME(const IMEInfo& info) {
   current_ime_ = info;
 }
 
+void TestSystemTrayDelegate::SetAvailableIMEList(const IMEInfoList& list) {
+  ime_list_ = list;
+}
+
 LoginStatus TestSystemTrayDelegate::GetUserLoginStatus() const {
   // Initial login status has been changed for testing.
   if (g_initial_status != LoginStatus::USER &&
@@ -142,5 +146,9 @@ void TestSystemTrayDelegate::GetCurrentIME(IMEInfo* info) {
   *info = current_ime_;
 }
 
+void TestSystemTrayDelegate::GetAvailableIMEList(IMEInfoList* list) {
+  *list = ime_list_;
+}
+
 }  // namespace test
 }  // namespace ash