Remove old (dead) app list code.

chrome/browser/ui/app_list/search/search_resource_manager.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 "chrome/browser/ui/app_list/search/search_resource_manager.h"
 
 #include "base/memory/ptr_util.h"
 #include "chrome/browser/ui/app_list/start_page_service.h"
 #include "chrome/grit/generated_resources.h"
 #include "chrome/grit/theme_resources.h"
@@ skipping 23 matching lines @@
 
 }  // namespace
 
 SearchResourceManager::SearchResourceManager(Profile* profile,
                                              SearchBoxModel* search_box,
                                              SpeechUIModel* speech_ui)
     : search_box_(search_box),
       speech_ui_(speech_ui) {
   speech_ui_->AddObserver(this);
 
-  ui::ResourceBundle& bundle = ui::ResourceBundle::GetSharedInstance();
-  search_box_->SetIcon(*bundle.GetImageSkiaNamed(IDR_OMNIBOX_SEARCH));
   search_box_->SetAccessibleName(
       l10n_util::GetStringUTF16(IDS_SEARCH_BOX_HINT));
   OnSpeechRecognitionStateChanged(speech_ui_->state());
 }
 
 SearchResourceManager::~SearchResourceManager() {
   speech_ui_->RemoveObserver(this);
 }
 
 void SearchResourceManager::OnSpeechRecognitionStateChanged(
     SpeechRecognitionState new_state) {
   search_box_->SetHintText(l10n_util::GetStringUTF16(
       (new_state == SPEECH_RECOGNITION_HOTWORD_LISTENING) ?
       IDS_SEARCH_BOX_HOTWORD_HINT : IDS_SEARCH_BOX_HINT));
   search_box_->SetSpeechRecognitionButton(CreateNewProperty(new_state));
 }
 
 }  // namespace app_list