Add support for scout to 'ext' param when creating SafeBrowsing ping URLs.

components/safe_browsing_db/hit_report.h

 // Copyright 2015 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.
 //
 // Datastructures that hold details of a Safe Browsing hit for reporting.
 
 #ifndef COMPONENTS_SAFE_BROWSING_DB_HIT_REPORT_H_
 #define COMPONENTS_SAFE_BROWSING_DB_HIT_REPORT_H_
 
+#include "components/safe_browsing_db/safe_browsing_prefs.h"
 #include "components/safe_browsing_db/util.h"
 #include "url/gurl.h"
 
 namespace safe_browsing {
 
 // What service classified this threat as unsafe.
 enum class ThreatSource {
   UNKNOWN,
   DATA_SAVER,             // From the Data Reduction service.
   LOCAL_PVER3,            // From LocalSafeBrowsingDatabaseManager, protocol v3
@@ skipping 14 matching lines @@
   GURL page_url;
   GURL referrer_url;
 
   bool is_subresource;
   SBThreatType threat_type;
   ThreatSource threat_source;
 
   // Opaque string used for tracking Pver4-based experiments
   std::string population_id;
 
-  bool is_extended_reporting;
+  ExtendedReportingLevel extended_reporting_level;
   bool is_metrics_reporting_active;
 
   std::string post_data;
 };
 
 }  // namespace safe_browsing
 
 #endif  // COMPONENTS_SAFE_BROWSING_DB_HIT_REPORT_H_