Enable feature to load icons from Web Manifests by defaut

components/favicon/core/features.cc

 // Copyright (c) 2017 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/core/features.h"
 
 #include "base/feature_list.h"
 
 namespace favicon {
 
 const base::Feature kFaviconsFromWebManifest{"FaviconsFromWebManifest",
-                                             base::FEATURE_DISABLED_BY_DEFAULT};
+                                             base::FEATURE_ENABLED_BY_DEFAULT};
 
 }  // namespace favicon