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

chrome/browser/chromeos/input_method/input_method_manager_impl.cc

Index: chrome/browser/chromeos/input_method/input_method_manager_impl.cc
diff --git a/chrome/browser/chromeos/input_method/input_method_manager_impl.cc b/chrome/browser/chromeos/input_method/input_method_manager_impl.cc
index 769f569f2ac83970e29e52fe8bd4e79d76eb193d..f8e8ed1439d3ea171cb39f24803240f34ee9f12c 100644
--- a/chrome/browser/chromeos/input_method/input_method_manager_impl.cc
+++ b/chrome/browser/chromeos/input_method/input_method_manager_impl.cc
@@ -25,6 +25,7 @@
 #include "chrome/browser/chromeos/ash_config.h"
 #include "chrome/browser/chromeos/input_method/candidate_window_controller.h"
 #include "chrome/browser/chromeos/input_method/component_extension_ime_manager_impl.h"
+#include "chrome/browser/chromeos/input_method/input_method_switch_recorder.h"
 #include "chrome/browser/chromeos/language_preferences.h"
 #include "chrome/browser/chromeos/login/session/user_session_manager.h"
 #include "chrome/browser/chromeos/profiles/profile_helper.h"
@@ -741,6 +742,7 @@
   // Find the next input method and switch to it.
   SwitchToNextInputMethodInternal(active_input_method_ids,
                                   current_input_method.id());
+  InputMethodSwitchRecorder::Get()->RecordSwitch(false /* by_tray_menu*/);
 }
 
 void InputMethodManagerImpl::StateImpl::SwitchToPreviousInputMethod() {
@@ -764,6 +766,7 @@
     return;
   }
   ChangeInputMethod(*iter, true);
+  InputMethodSwitchRecorder::Get()->RecordSwitch(false /* by_tray_menu*/);
 }
 
 bool InputMethodManagerImpl::StateImpl::CanSwitchInputMethod(
@@ -781,8 +784,10 @@
   std::vector<std::string> candidate_ids;
   GetCandidateInputMethodsForAccelerator(accelerator, &candidate_ids);
   DCHECK(!candidate_ids.empty());
-  if (!candidate_ids.empty())
+  if (!candidate_ids.empty()) {
     SwitchToNextInputMethodInternal(candidate_ids, current_input_method.id());
+    InputMethodSwitchRecorder::Get()->RecordSwitch(false /* by_tray_menu*/);
+  }
 }
 
 void InputMethodManagerImpl::StateImpl::SwitchToNextInputMethodInternal(