Move WasUnableToDownload logic to FaviconHandler

components/favicon/ios/web_favicon_driver.mm

 // Copyright 2015 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 "components/favicon/ios/web_favicon_driver.h"
 
 #include "base/bind.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "components/favicon/core/favicon_url.h"
 #include "components/favicon/ios/favicon_url_util.h"
@@ skipping 52 matching lines @@
 
 GURL WebFaviconDriver::GetActiveURL() {
   web::NavigationItem* item =
       web_state()->GetNavigationManager()->GetVisibleItem();
   return item ? item->GetURL() : GURL();
 }
 
 int WebFaviconDriver::DownloadImage(const GURL& url,
                                     int max_image_size,
                                     ImageDownloadCallback callback) {
-  if (WasUnableToDownloadFavicon(url)) {
-    DVLOG(1) << "Skip Failed FavIcon: " << url;
-    return 0;
-  }
-
   static int downloaded_image_count = 0;
   int local_download_id = ++downloaded_image_count;
 
   GURL local_url(url);
 
   image_fetcher::IOSImageDataFetcherCallback local_callback =
       ^(NSData* data, const image_fetcher::RequestMetadata& metadata) {
         if (metadata.response_code ==
             image_fetcher::ImageDataFetcher::RESPONSE_CODE_INVALID)
           return;
@@ skipping 50 matching lines @@
 WebFaviconDriver::~WebFaviconDriver() {
 }
 
 void WebFaviconDriver::FaviconUrlUpdated(
     const std::vector<web::FaviconURL>& candidates) {
   DCHECK(!candidates.empty());
   OnUpdateFaviconURL(GetActiveURL(), FaviconURLsFromWebFaviconURLs(candidates));
 }
 
 }  // namespace favicon