Experiment with HSTS preload list filtering.

net/tools/transport_security_state_generator/input_file_parsers.cc

 // Copyright 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 "net/tools/transport_security_state_generator/input_file_parsers.h"
 
 #include <sstream>
 #include <vector>
 
 #include "base/json/json_reader.h"
@@ skipping 300 matching lines @@
                        &entry->hpkp_include_subdomains);
     parsed->GetString("pins", &entry->pinset);
     parsed->GetBoolean("expect_ct", &entry->expect_ct);
     parsed->GetString("expect_ct_report_uri", &entry->expect_ct_report_uri);
     parsed->GetBoolean("expect_staple", &entry->expect_staple);
     parsed->GetBoolean("include_subdomains_for_expect_staple",
                        &entry->expect_staple_include_subdomains);
     parsed->GetString("expect_staple_report_uri",
                       &entry->expect_staple_report_uri);
 
+    int importance = 0;
+    parsed->GetInteger("importance", &importance);
+    entry->importance = static_cast<unsigned>(importance);
+
     entries->push_back(std::move(entry));
   }
 
   const base::ListValue* pinsets_list = nullptr;
   if (!dict_value->GetList("pinsets", &pinsets_list)) {
     LOG(ERROR) << "Could not parse the pinsets in the input JSON";
     return false;
   }
 
   for (size_t i = 0; i < pinsets_list->GetSize(); ++i) {
@@ skipping 37 matching lines @@
 
     pinsets->RegisterPinset(std::move(pinset));
   }
 
   return true;
 }
 
 }  // namespace transport_security_state
 
 }  // namespace net