Send site certificate chain to android payment app

chrome/browser/ui/android/page_info/certificate_chain_helper.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/android/page_info/certificate_chain_helper.h"
 
 #include "base/android/jni_android.h"
 #include "base/android/jni_array.h"
 #include "base/android/jni_string.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 12 matching lines @@
     JNIEnv* env,
     const JavaParamRef<jclass>&,
     const JavaParamRef<jobject>& java_web_contents) {
   content::WebContents* web_contents =
       content::WebContents::FromJavaWebContents(java_web_contents);
   if (!web_contents)
     return ScopedJavaLocalRef<jobjectArray>();
 
   scoped_refptr<net::X509Certificate> cert =
       web_contents->GetController().GetVisibleEntry()->GetSSL().certificate;
+  if (!cert)
+    return ScopedJavaLocalRef<jobjectArray>();
 
   std::vector<std::string> cert_chain;
   net::X509Certificate::OSCertHandles cert_handles =
       cert->GetIntermediateCertificates();
   // Make sure the peer's own cert is the first in the chain, if it's not
   // already there.
   if (cert_handles.empty() || cert_handles[0] != cert->os_cert_handle())
     cert_handles.insert(cert_handles.begin(), cert->os_cert_handle());
 
   cert_chain.reserve(cert_handles.size());
   for (const auto& handle : cert_handles) {
     std::string cert_bytes;
     net::X509Certificate::GetDEREncoded(handle, &cert_bytes);
     cert_chain.push_back(cert_bytes);
   }
 
   return base::android::ToJavaArrayOfByteArray(env, cert_chain);
 }
 
 // static
 bool RegisterCertificateChainHelper(JNIEnv* env) {
   return RegisterNativesImpl(env);
 }