predictors: Mark before_first_contentful_paint for resources fetched before fcp.

chrome/browser/ui/webui/predictors/predictors_handler.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/ui/webui/predictors/predictors_handler.h"
 
 #include <memory>
 #include <string>
 #include <utility>
 
@@ skipping 114 matching lines @@
           new base::DictionaryValue());
       resource->SetString("resource_url", r.resource_url());
       resource->SetString("resource_type",
                           ConvertResourceType(r.resource_type()));
       resource->SetInteger("number_of_hits", r.number_of_hits());
       resource->SetInteger("number_of_misses", r.number_of_misses());
       resource->SetInteger("consecutive_misses", r.consecutive_misses());
       resource->SetDouble("position", r.average_position());
       resource->SetDouble(
           "score", ResourcePrefetchPredictorTables::ComputeResourceScore(r));
+      resource->SetBoolean("before_first_contentful_paint",
+                           r.before_first_contentful_paint());
       resource->SetBoolean(
           "is_prefetchable",
           resource_prefetch_predictor_->IsResourcePrefetchable(r));
       resources->Append(std::move(resource));
     }
     main->Set("resources", std::move(resources));
     db->Append(std::move(main));
   }
 }