chromeos: Remove the last IME methods from ash::SystemTrayDelegate

ash/system/ime_menu/ime_list_view.cc

Index: ash/system/ime_menu/ime_list_view.cc
diff --git a/ash/system/ime_menu/ime_list_view.cc b/ash/system/ime_menu/ime_list_view.cc
index d93455aca0523004442c0005d2fef19e3f1a5e78..7fb46f1e769a698a5142f800c609c78ab239a5cc 100644
--- a/ash/system/ime_menu/ime_list_view.cc
+++ b/ash/system/ime_menu/ime_list_view.cc
@@ -10,10 +10,10 @@
 #include "ash/shell.h"
 #include "ash/shell_port.h"
 #include "ash/strings/grit/ash_strings.h"
+#include "ash/system/ime/ime_util.h"
 #include "ash/system/tray/actionable_view.h"
 #include "ash/system/tray/ime_info.h"
 #include "ash/system/tray/system_menu_button.h"
-#include "ash/system/tray/system_tray_delegate.h"
 #include "ash/system/tray/tray_constants.h"
 #include "ash/system/tray/tray_details_view.h"
 #include "ash/system/tray/tray_popup_header_button.h"
@@ -196,11 +196,8 @@ ImeListView::~ImeListView() {}
 
 void ImeListView::Init(bool show_keyboard_toggle,
                        SingleImeBehavior single_ime_behavior) {
-  SystemTrayDelegate* delegate = Shell::Get()->system_tray_delegate();
-  IMEInfoList list;
-  delegate->GetAvailableIMEList(&list);
-  IMEPropertyInfoList property_list;
-  delegate->GetCurrentIMEProperties(&property_list);
+  IMEInfoList list = ime_util::GetAvailableIMEList();
+  IMEPropertyInfoList property_list = ime_util::GetCurrentIMEProperties();
   Update(list, property_list, show_keyboard_toggle, single_ime_behavior);
 }