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

chrome/browser/safe_browsing/protocol_manager_helper.h

Index: chrome/browser/safe_browsing/protocol_manager_helper.h
diff --git a/chrome/browser/safe_browsing/protocol_manager_helper.h b/chrome/browser/safe_browsing/protocol_manager_helper.h
index a7c8dd195b43a65abd227e30c8d17a9baa799577..5777fdfb7482b357fd353dd7f18d8c3509c5d90a 100644
--- a/chrome/browser/safe_browsing/protocol_manager_helper.h
+++ b/chrome/browser/safe_browsing/protocol_manager_helper.h
@@ -13,6 +13,7 @@
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
+#include "components/safe_browsing_db/safe_browsing_prefs.h"
 
 namespace safe_browsing {
 
@@ -50,7 +51,7 @@ class SafeBrowsingProtocolManagerHelper {
                                 const std::string& client_name,
                                 const std::string& version,
                                 const std::string& additional_query,
-                                bool is_extended_reporting);
+                                ExtendedReportingLevel reporting_level);
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(SafeBrowsingProtocolManagerHelper);