Remove unused instant support for chrome://large-icon and chrome://fallback-icon

chrome/renderer/chrome_content_renderer_client.cc

 // Copyright (c) 2012 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/renderer/chrome_content_renderer_client.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/bind.h"
@@ skipping 1197 matching lines @@
     return false;
 
   SearchBox* search_box =
       SearchBox::Get(content::RenderFrame::FromWebFrame(frame->LocalRoot()));
   if (search_box) {
     // Note: this GURL copy could be avoided if host() were added to WebURL.
     GURL gurl(url);
     SearchBox::ImageSourceType type = SearchBox::NONE;
     if (gurl.host_piece() == chrome::kChromeUIFaviconHost)
       type = SearchBox::FAVICON;
-    else if (gurl.host_piece() == chrome::kChromeUILargeIconHost)
-      type = SearchBox::LARGE_ICON;
-    else if (gurl.host_piece() == chrome::kChromeUIFallbackIconHost)
-      type = SearchBox::FALLBACK_ICON;
     else if (gurl.host_piece() == chrome::kChromeUIThumbnailHost)
       type = SearchBox::THUMB;
 
     if (type != SearchBox::NONE)
       return search_box->GenerateImageURLFromTransientURL(url, type, new_url);
   }
 
   return false;
 }
 
@@ skipping 343 matching lines @@
 
   RecordYouTubeRewriteUMA(result);
   return corrected_url.ReplaceComponents(r);
 }
 
 std::unique_ptr<base::TaskScheduler::InitParams>
 ChromeContentRendererClient::GetTaskSchedulerInitParams() {
   return task_scheduler_util::
       GetRendererTaskSchedulerInitParamsFromCommandLine();
 }