It is time.

ui/base/ime/text_input_focus_manager.cc

Index: ui/base/ime/text_input_focus_manager.cc
diff --git a/ui/base/ime/text_input_focus_manager.cc b/ui/base/ime/text_input_focus_manager.cc
deleted file mode 100644
index 25033d8cb32d4200547f775822ff426e8014425c..0000000000000000000000000000000000000000
--- a/ui/base/ime/text_input_focus_manager.cc
+++ /dev/null
@@ -1,45 +0,0 @@
-// Copyright 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 "ui/base/ime/text_input_focus_manager.h"
-
-#include "base/logging.h"
-#include "base/memory/singleton.h"
-
-namespace ui {
-
-// TODO(sky): reenable these DCHECKs. We're in the process of enabling usage
-// of views from multiple threads and this causes problems. See
-// http://crbug.com/388045 for details.
-
-TextInputFocusManager* TextInputFocusManager::GetInstance() {
-  TextInputFocusManager* instance = Singleton<TextInputFocusManager>::get();
-  // DCHECK(instance->thread_checker_.CalledOnValidThread());
-  return instance;
-}
-
-TextInputClient* TextInputFocusManager::GetFocusedTextInputClient() {
-  // DCHECK(thread_checker_.CalledOnValidThread());
-  return focused_text_input_client_;
-}
-
-void TextInputFocusManager::FocusTextInputClient(
-    TextInputClient* text_input_client) {
-  // DCHECK(thread_checker_.CalledOnValidThread());
-  focused_text_input_client_ = text_input_client;
-}
-
-void TextInputFocusManager::BlurTextInputClient(
-    TextInputClient* text_input_client) {
-  // DCHECK(thread_checker_.CalledOnValidThread());
-  if (focused_text_input_client_ == text_input_client)
-    focused_text_input_client_ = NULL;
-}
-
-TextInputFocusManager::TextInputFocusManager()
-    : focused_text_input_client_(NULL) {}
-
-TextInputFocusManager::~TextInputFocusManager() {}
-
-}  // namespace ui