Remove InputMethodEventHandler.

ash/ime/input_method_event_handler.cc

-// Copyright 2015 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 "ash/ime/input_method_event_handler.h"
-
-#include "ui/base/ime/input_method.h"
-#include "ui/events/event.h"
-
-namespace ash {
-
-////////////////////////////////////////////////////////////////////////////////
-// InputMethodEventHandler, public:
-
-InputMethodEventHandler::InputMethodEventHandler(ui::InputMethod* input_method)
-    : input_method_(input_method), post_ime_(false) {}
-
-InputMethodEventHandler::~InputMethodEventHandler() {}
-
-void InputMethodEventHandler::SetPostIME(bool post_ime) {
-  post_ime_ = post_ime;
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// InputMethodEventHandler, EventFilter implementation:
-
-void InputMethodEventHandler::OnKeyEvent(ui::KeyEvent* event) {
-  // Never send synthesized key event.
-  if (event->flags() & ui::EF_IS_SYNTHESIZED)
-    return;
-  if (post_ime_)
-    return;
-  input_method_->DispatchKeyEvent(event);
-  event->StopPropagation();
-}
-
-}  // namespace ash