Add certificate error handling to devtools.

content/browser/ssl/ssl_manager.cc

Index: content/browser/ssl/ssl_manager.cc
diff --git a/content/browser/ssl/ssl_manager.cc b/content/browser/ssl/ssl_manager.cc
index df2e7575b49da85f0455e6e880cc5e0f01d02318..28d28e2788b5ed15160f61559a1fcd6d44ea0cfe 100644
--- a/content/browser/ssl/ssl_manager.cc
+++ b/content/browser/ssl/ssl_manager.cc
@@ -356,11 +356,17 @@ void SSLManager::OnCertErrorInternal(std::unique_ptr<SSLErrorHandler> handler,
   const net::SSLInfo& ssl_info = handler->ssl_info();
   const GURL& request_url = handler->request_url();
   ResourceType resource_type = handler->resource_type();
-  GetContentClient()->browser()->AllowCertificateError(
-      web_contents, cert_error, ssl_info, request_url, resource_type,
-      overridable, strict_enforcement, expired_previous_decision,
+
+  base::Callback<void(content::CertificateRequestResultType)> callback =
       base::Bind(&OnAllowCertificate, base::Owned(handler.release()),
-                 ssl_host_state_delegate_));
+                 ssl_host_state_delegate_);
+
+  if (!web_contents->NotifyCertificateError(cert_error, request_url,
+                                            callback)) {
+    GetContentClient()->browser()->AllowCertificateError(
+        web_contents, cert_error, ssl_info, request_url, resource_type,
+        overridable, strict_enforcement, expired_previous_decision, callback);
+  }
 }
 
 void SSLManager::UpdateEntry(NavigationEntryImpl* entry,