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

content/public/browser/web_contents_delegate.cc

Index: content/public/browser/web_contents_delegate.cc
diff --git a/content/public/browser/web_contents_delegate.cc b/content/public/browser/web_contents_delegate.cc
index 0a1d3f13480a1a8270755bf9f3d5cb78c3fabafa..8cf1cabf36e17a2e2483bc066cde68ece98e80f0 100644
--- a/content/public/browser/web_contents_delegate.cc
+++ b/content/public/browser/web_contents_delegate.cc
@@ -259,4 +259,13 @@ void WebContentsDelegate::ShowCertificateViewerInDevTools(
     int cert_id) {
 }
 
+void WebContentsDelegate::GetCertificateTransparencySummary(
+    bool is_valid_ev,
+    int num_unknown_scts,
+    int num_invalid_scts,
+    int num_valid_scts,
+    std::string* summary) {
+  summary = new std::string();
+}
+
 }  // namespace content