Introduce networkingPrivate.getCertificateLists

extensions/browser/api/networking_private/networking_private_linux.cc

Index: extensions/browser/api/networking_private/networking_private_linux.cc
diff --git a/extensions/browser/api/networking_private/networking_private_linux.cc b/extensions/browser/api/networking_private/networking_private_linux.cc
index d7ecf8e7c42287f139e4d1f022219fec238e755e..89c1819697e5ec0338d978819503ebc5c698711d 100644
--- a/extensions/browser/api/networking_private/networking_private_linux.cc
+++ b/extensions/browser/api/networking_private/networking_private_linux.cc
@@ -594,6 +594,11 @@ NetworkingPrivateLinux::GetGlobalPolicy() {
   return base::MakeUnique<base::DictionaryValue>();
 }
 
+std::unique_ptr<base::DictionaryValue>
+NetworkingPrivateServiceClient::GetCertificateLists() {
+  return base::MakeUnique<base::DictionaryValue>();
+}
+
 bool NetworkingPrivateLinux::EnableNetworkType(const std::string& type) {
   return false;
 }