Revert of chromeos: Remove some IME methods from ash::SystemTrayDelegate

chrome/browser/ui/ash/system_tray_delegate_chromeos.cc

Index: chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
diff --git a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
index 8231fbdc0a6ee34611e2fdad1955b4ae696ef4c5..8e19a97e826b14e9f023ede62dfc68daa2938861 100644
--- a/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
+++ b/chrome/browser/ui/ash/system_tray_delegate_chromeos.cc
@@ -33,6 +33,7 @@
 #include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/chromeos/accessibility/magnification_manager.h"
 #include "chrome/browser/chromeos/events/system_key_event_listener.h"
+#include "chrome/browser/chromeos/input_method/input_method_switch_recorder.h"
 #include "chrome/browser/chromeos/input_method/input_method_util.h"
 #include "chrome/browser/chromeos/login/login_wizard.h"
 #include "chrome/browser/chromeos/login/ui/user_adding_screen.h"
@@ -255,6 +256,18 @@
              : l10n_util::GetStringUTF16(IDS_OPTIONS_CONTROLLED_SETTING_POLICY);
 }
 
+void SystemTrayDelegateChromeOS::SwitchIME(const std::string& ime_id) {
+  input_method::InputMethodManager::Get()
+      ->GetActiveIMEState()
+      ->ChangeInputMethod(ime_id, false /* show_message */);
+  input_method::InputMethodSwitchRecorder::Get()->RecordSwitch(
+      true /* by_tray_menu */);
+}
+
+void SystemTrayDelegateChromeOS::ActivateIMEProperty(const std::string& key) {
+  input_method::InputMethodManager::Get()->ActivateInputMethodMenuItem(key);
+}
+
 ash::NetworkingConfigDelegate*
 SystemTrayDelegateChromeOS::GetNetworkingConfigDelegate() const {
   return networking_config_delegate_.get();