DevTools: pick resource with certificate when retrieving cert data.

third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp

Index: third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
diff --git a/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp b/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
index 02ff9331215d9cbebb3de32c0d78805420a1b8f6..9192c3ed39a713aec69c3f4510e23b41c1e402f8 100644
--- a/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
+++ b/third_party/WebKit/Source/core/inspector/InspectorNetworkAgent.cpp
@@ -1399,7 +1399,8 @@ Response InspectorNetworkAgent::getCertificate(
   for (auto& resource : m_resourcesData->resources()) {
     RefPtr<SecurityOrigin> resourceOrigin =
         SecurityOrigin::create(resource->requestedURL());
-    if (resourceOrigin->isSameSchemeHostPort(securityOrigin.get())) {
+    if (resourceOrigin->isSameSchemeHostPort(securityOrigin.get()) &&
+        resource->certificate().size()) {
       for (auto& cert : resource->certificate())
         certificate->get()->addItem(base64Encode(cert.latin1()));
       return Response::OK();