chromeos: Remove some IME methods from ash::SystemTrayDelegate

chrome/browser/chromeos/input_method/input_method_switch_recorder.cc

-// Copyright (c) 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "chrome/browser/chromeos/input_method/input_method_switch_recorder.h"
-
-#include "base/metrics/histogram_macros.h"
-
-namespace {
-
-chromeos::input_method::InputMethodSwitchRecorder*
-    g_input_method_switch_recorder = NULL;
-
-enum SwitchBy {
-  // The values should not reordered or deleted and new entries should only be
-  // added at the end (otherwise it will cause problems interpreting logs)
-  SWITCH_BY_TRAY = 0,
-  SWITCH_BY_ACCELERATOR = 1,
-  NUM_SWITCH_BY = 2
-};
-
-}  // namespace
-
-namespace chromeos {
-namespace input_method {
-
-// static
-InputMethodSwitchRecorder* InputMethodSwitchRecorder::Get() {
-  if (!g_input_method_switch_recorder)
-    g_input_method_switch_recorder = new InputMethodSwitchRecorder();
-  return g_input_method_switch_recorder;
-}
-
-InputMethodSwitchRecorder::InputMethodSwitchRecorder() {
-}
-
-InputMethodSwitchRecorder::~InputMethodSwitchRecorder() {
-}
-
-void InputMethodSwitchRecorder::RecordSwitch(bool by_tray_menu) {
-  UMA_HISTOGRAM_ENUMERATION(
-      "InputMethod.ImeSwitch",
-      by_tray_menu ? SWITCH_BY_TRAY : SWITCH_BY_ACCELERATOR, NUM_SWITCH_BY);
-}
-
-}  // namespace input_method
-}  // namespace chromeos
-