Surface SCT (Signed Certificate Timestamp) counts in the Security panel.

content/browser/devtools/protocol/network_handler.cc

Index: content/browser/devtools/protocol/network_handler.cc
diff --git a/content/browser/devtools/protocol/network_handler.cc b/content/browser/devtools/protocol/network_handler.cc
index d18d87a6b96f36a677e387e4d8c65886c4b75ca3..ac5989ebc9d2ac06f3e8bdb6b860fd7132135aed 100644
--- a/content/browser/devtools/protocol/network_handler.cc
+++ b/content/browser/devtools/protocol/network_handler.cc
@@ -315,6 +315,20 @@ Response NetworkHandler::GetCertificateDetails(
   return Response::OK();
 }
 
+Response NetworkHandler::GetCertificateTransparencySummary(
+    bool is_valid_ev,
+    int num_unknown_scts,
+    int num_invalid_scts,
+    int num_valid_scts,
+    std::string* result) {
+  if (!host_)
+    return Response::InternalError("Could not connect to view");
+  WebContents* web_contents = WebContents::FromRenderFrameHost(host_);
+  web_contents->GetDelegate()->GetCertificateTransparencySummary(
+      is_valid_ev, num_unknown_scts, num_invalid_scts, num_valid_scts, result);
+  return Response::OK();
+}
+
 Response NetworkHandler::ShowCertificateViewer(int certificate_id) {
   if (!host_)
     return Response::InternalError("Could not connect to view");