[LargeIconService] Make check_seen param optional for fetching

components/ntp_tiles/icon_cacher_impl.cc

 // Copyright 2016 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/ntp_tiles/icon_cacher_impl.h"
 
 #include <utility>
 
 #include "base/memory/ptr_util.h"
 #include "components/favicon/core/favicon_service.h"
@@ skipping 198 matching lines @@
   if (!HasResultDefaultBackgroundColor(result)) {
     // We should only fetch for default "gray" tiles so that we never overrite
     // any favicon of any size.
     FinishRequestAndNotifyIconAvailable(page_url, /*newly_available=*/false);
     return;
   }
 
   large_icon_service_
       ->GetLargeIconOrFallbackStyleFromGoogleServerSkippingLocalCache(
           page_url, kTileIconMinSizePx, kTileIconDesiredSizePx,
+          /*may_page_url_be_private=*/true,
           base::Bind(&IconCacherImpl::FinishRequestAndNotifyIconAvailable,
                      weak_ptr_factory_.GetWeakPtr(), page_url));
 }
 
 bool IconCacherImpl::StartRequest(const GURL& request_url,
                                   const base::Closure& icon_available) {
   bool in_flight = in_flight_requests_.count(request_url) > 0;
   in_flight_requests_[request_url].push_back(icon_available);
   return !in_flight;
 }
 
 void IconCacherImpl::FinishRequestAndNotifyIconAvailable(
     const GURL& request_url,
     bool newly_available) {
   std::vector<base::Closure> callbacks =
       std::move(in_flight_requests_[request_url]);
   in_flight_requests_.erase(request_url);
   if (!newly_available) {
     return;
   }
   for (const base::Closure& callback : callbacks) {
     if (callback) {
       callback.Run();
     }
   }
 }
 
 }  // namespace ntp_tiles