Remove ui::TextInputClient::GetAttachedWindow

ui/base/ime/dummy_text_input_client.cc

 // Copyright 2013 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/dummy_text_input_client.h"
 #include "ui/gfx/rect.h"
 
 namespace ui {
 
 DummyTextInputClient::DummyTextInputClient() {
@@ skipping 11 matching lines @@
 
 void DummyTextInputClient::ClearCompositionText() {
 }
 
 void DummyTextInputClient::InsertText(const base::string16& text) {
 }
 
 void DummyTextInputClient::InsertChar(base::char16 ch, int flags) {
 }
 
-gfx::NativeWindow DummyTextInputClient::GetAttachedWindow() const {
-  return NULL;
-}
-
 ui::TextInputType DummyTextInputClient::GetTextInputType() const {
   return TEXT_INPUT_TYPE_NONE;
 }
 
 ui::TextInputMode DummyTextInputClient::GetTextInputMode() const {
   return TEXT_INPUT_MODE_DEFAULT;
 }
 
 bool DummyTextInputClient::CanComposeInline() const {
   return false;
@@ skipping 56 matching lines @@
 void DummyTextInputClient::OnCandidateWindowShown() {
 }
 
 void DummyTextInputClient::OnCandidateWindowUpdated() {
 }
 
 void DummyTextInputClient::OnCandidateWindowHidden() {
 }
 
 }  // namespace ui