Histogram the scheme of an origin on the 1st navigation to it.

components/navigation_metrics/navigation_metrics.h

Index: components/navigation_metrics/navigation_metrics.h
diff --git a/components/navigation_metrics/navigation_metrics.h b/components/navigation_metrics/navigation_metrics.h
index aa6ef008c2a960bdf1a682c9771631439c582957..05176b7ed16f138ac3c63c763fe40f89c2862d62 100644
--- a/components/navigation_metrics/navigation_metrics.h
+++ b/components/navigation_metrics/navigation_metrics.h
@@ -9,7 +9,10 @@ class GURL;
 
 namespace navigation_metrics {
 
-void RecordMainFrameNavigation(const GURL& url, bool is_in_page);
+void RecordMainFrameNavigation(const GURL& url,
+                               bool is_in_page,
+                               bool is_off_the_record,
+                               bool have_already_seen_origin);
 
 }  // namespace navigation_metrics