Delete unused chrome://fallback-icon/ handling

chrome/browser/search/instant_service.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 "chrome/browser/search/instant_service.h"
 
 #include <stddef.h>
 
 #include "base/bind.h"
 #include "base/feature_list.h"
@@ skipping 11 matching lines @@
 #include "chrome/browser/search/suggestions/suggestions_service_factory.h"
 #include "chrome/browser/search/thumbnail_source.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/search_engines/ui_thread_search_terms_data.h"
 #include "chrome/browser/thumbnails/thumbnail_list_source.h"
 #include "chrome/browser/ui/search/instant_search_prerenderer.h"
 #include "chrome/browser/ui/webui/favicon_source.h"
 #include "chrome/browser/ui/webui/theme_source.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/grit/theme_resources.h"
-#include "components/favicon/core/fallback_icon_service.h"
 #include "components/history/core/browser/top_sites.h"
 #include "components/image_fetcher/core/image_fetcher_impl.h"
 #include "components/keyed_service/core/service_access_type.h"
 #include "components/ntp_tiles/icon_cacher.h"
 #include "components/search/search.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_types.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/url_data_source.h"
@@ skipping 418 matching lines @@
 void InstantService::ResetInstantSearchPrerendererIfNecessary() {
   if (!search::IsInstantExtendedAPIEnabled())
     return;
 
   GURL url(search::GetSearchResultPrefetchBaseURL(profile_));
   if (!instant_prerenderer_ || instant_prerenderer_->prerender_url() != url) {
     instant_prerenderer_.reset(
         url.is_valid() ? new InstantSearchPrerenderer(profile_, url) : nullptr);
   }
 }