Enable hidpi favicons for favicons history does not know about

chrome/browser/favicon/favicon_tab_helper.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/browser/favicon/favicon_tab_helper.h"
 
 #include "chrome/browser/favicon/favicon_handler.h"
 #include "chrome/browser/favicon/favicon_service_factory.h"
 #include "chrome/browser/favicon/favicon_util.h"
 #include "chrome/browser/history/history.h"
@@ skipping 95 matching lines @@
 
   FaviconService* service = FaviconServiceFactory::GetForProfile(
       profile_->GetOriginalProfile(), Profile::IMPLICIT_ACCESS);
   if (!service)
     return;
   const FaviconStatus& favicon(entry->GetFavicon());
   if (!favicon.valid || favicon.url.is_empty() ||
       favicon.image.IsEmpty()) {
     return;
   }
-  std::vector<unsigned char> image_data;
-  // TODO: Save all representations.
-  gfx::PNGCodec::EncodeBGRASkBitmap(
-      favicon.image.AsBitmap(), false, &image_data);
-  service->SetFavicon(
-      entry->GetURL(), favicon.url, image_data, history::FAVICON);
+  service->SetFavicons(entry->GetURL(), favicon.url, history::FAVICON,
+                       favicon.image);
 }
 
 int FaviconTabHelper::DownloadImage(const GURL& image_url,
                                     int image_size,
                                     history::IconType icon_type,
                                     const ImageDownloadCallback& callback) {
   if (icon_type == history::FAVICON)
     return favicon_handler_->DownloadImage(image_url, image_size, icon_type,
                                            callback);
   else if (touch_icon_handler_.get())
@@ skipping 63 matching lines @@
     bool errored,
     int requested_size,
     const std::vector<SkBitmap>& bitmaps) {
   favicon_handler_->OnDidDownloadFavicon(
       id, image_url, errored, requested_size, bitmaps);
   if (touch_icon_handler_.get()) {
     touch_icon_handler_->OnDidDownloadFavicon(
         id, image_url, errored, requested_size, bitmaps);
   }
 }