Remove the 2-level input method system & InputMethodBridge.

ui/views/ime/null_input_method.cc

-// 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/views/ime/null_input_method.h"
-
-namespace views {
-
-NullInputMethod::NullInputMethod() {}
-
-void NullInputMethod::SetDelegate(
-    internal::InputMethodDelegate* /* delegate */) {}
-
-void NullInputMethod::Init(Widget* /* widget */) {}
-
-void NullInputMethod::OnFocus() {}
-
-void NullInputMethod::OnBlur() {}
-
-bool NullInputMethod::OnUntranslatedIMEMessage(
-    const base::NativeEvent& /* event */,
-    NativeEventResult* /* result */) {
-  return false;
-}
-
-void NullInputMethod::DispatchKeyEvent(const ui::KeyEvent& /* key */) {}
-
-void NullInputMethod::OnTextInputTypeChanged(View* /* view */) {}
-
-void NullInputMethod::OnCaretBoundsChanged(View* /* view */) {}
-
-void NullInputMethod::CancelComposition(View* /* view */) {}
-
-void NullInputMethod::OnInputLocaleChanged() {}
-
-std::string NullInputMethod::GetInputLocale() {
-  return std::string();
-}
-
-bool NullInputMethod::IsActive() {
-  return false;
-}
-
-ui::TextInputClient* NullInputMethod::GetTextInputClient() const {
-  return NULL;
-}
-
-ui::TextInputType NullInputMethod::GetTextInputType() const {
-  return ui::TEXT_INPUT_TYPE_NONE;
-}
-
-bool NullInputMethod::IsCandidatePopupOpen() const {
-  return false;
-}
-
-void NullInputMethod::ShowImeIfNeeded() {}
-
-}  // namespace views