Remove the 2-level input method system & InputMethodBridge.

ui/views/ime/input_method_delegate.h

-// Copyright (c) 2011 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.
-
-#ifndef UI_VIEWS_IME_INPUT_METHOD_DELEGATE_H_
-#define UI_VIEWS_IME_INPUT_METHOD_DELEGATE_H_
-
-#include "ui/views/views_export.h"
-
-namespace ui {
-class KeyEvent;
-}
-
-namespace views {
-
-namespace internal {
-
-// An interface implemented by the object that handles events sent back from an
-// InputMethod implementation.
-class VIEWS_EXPORT InputMethodDelegate {
- public:
-  virtual ~InputMethodDelegate() {}
-
-  // Dispatch a key event already processed by the input method.
-  virtual void DispatchKeyEventPostIME(const ui::KeyEvent& key) = 0;
-};
-
-}  // namespace internal
-}  // namespace views
-
-#endif  // UI_VIEWS_IME_INPUT_METHOD_DELEGATE_H_