Add ImeMenuTray element.

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 4d812b50c014304801b85fe827e882dff7d311b1..deafe17f4397c211d6bcf46ac0542436a202f330 100644
--- a/ash/test/test_system_tray_delegate.cc
+++ b/ash/test/test_system_tray_delegate.cc
@@ -63,6 +63,10 @@ void TestSystemTrayDelegate::ClearSessionLengthLimit() {
   session_length_limit_set_ = false;
 }
 
+void TestSystemTrayDelegate::SetCurrentIME(const IMEInfo& info) {
+  current_ime_ = info;
+}
+
 LoginStatus TestSystemTrayDelegate::GetUserLoginStatus() const {
   // Initial login status has been changed for testing.
   if (g_initial_status != LoginStatus::USER &&
@@ -134,5 +138,9 @@ TestSystemTrayDelegate::CreateRotationLockTrayItem(SystemTray* tray) {
 #endif
 }
 
+void TestSystemTrayDelegate::GetCurrentIME(IMEInfo* info) {
+  *info = current_ime_;
+}
+
 }  // namespace test
 }  // namespace ash