WIP: NSS trust store integration for path builder.

net/cert/internal/cert_issuer_source.h

Index: net/cert/internal/cert_issuer_source.h
diff --git a/net/cert/internal/cert_issuer_source.h b/net/cert/internal/cert_issuer_source.h
index 1ffc3b3a9f906ff36e6d4ebc42087f418d5c95d4..f73c6e53aae4207657b17e0b0231410758aa2e78 100644
--- a/net/cert/internal/cert_issuer_source.h
+++ b/net/cert/internal/cert_issuer_source.h
@@ -71,7 +71,7 @@ class NET_EXPORT CertIssuerSource {
   // method may then be used to iterate through the retrieved issuers. Note that
   // |issuers_callback| may be called multiple times. See the documentation for
   // Request::GetNext for more details.
-  virtual void AsyncGetIssuersOf(const ParsedCertificate* cert,
+  virtual void AsyncGetIssuersOf(scoped_refptr<ParsedCertificate> cert,
                                  const IssuerCallback& issuers_callback,
                                  std::unique_ptr<Request>* out_req) = 0;
 };