WIP: NSS trust store integration for path builder.

net/cert/internal/trust_store_nss.h

Index: net/cert/internal/trust_store_nss.h
diff --git a/net/cert/internal/trust_store_nss.h b/net/cert/internal/trust_store_nss.h
new file mode 100644
index 0000000000000000000000000000000000000000..55d6c309eb6f46d72e1a82eade1b97e42aa54e6d
--- /dev/null
+++ b/net/cert/internal/trust_store_nss.h
@@ -0,0 +1,51 @@
+// 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.
+
+#ifndef NET_CERT_INTERNAL_TRUST_STORE_NSS_H_
+#define NET_CERT_INTERNAL_TRUST_STORE_NSS_H_
+
+#include "base/memory/ref_counted.h"
+#include "net/base/net_export.h"
+#include "net/cert/internal/cert_issuer_source.h"
+#include "net/cert/internal/trust_store.h"
+
+namespace base {
+class TaskRunner;
+}
+
+namespace net {
+
+// TrustStoreNSS is an implementation of TrustStore and CertIssuerSource which
+// provides uses NSS to do trust checks and to provide certificates (both
+// intermediates and roots) from the NSS DB for path building.
+class NET_EXPORT TrustStoreNSS : public TrustStore {
+ public:
+  // Creates a TrustStoreNSS. All NSS calls will be done on |nss_task_runner|.
+  explicit TrustStoreNSS(scoped_refptr<base::TaskRunner> nss_task_runner);
+  ~TrustStoreNSS() override;
+
+  // TrustStore implementation:
+  void IsTrustedCertificate(
+      scoped_refptr<ParsedCertificate> cert,
+      const TrustCallback& callback,
+      bool* out_trusted,
+      std::unique_ptr<TrustStore::Request>* out_req) const override;
+
+  // CertIssuerSource implementation:
+  void SyncGetIssuersOf(const ParsedCertificate* cert,
+                        ParsedCertificateList* issuers) override;
+  void AsyncGetIssuersOf(
+      scoped_refptr<ParsedCertificate> cert,
+      const IssuerCallback& callback,
+      std::unique_ptr<CertIssuerSource::Request>* out_req) override;
+
+ private:
+  scoped_refptr<base::TaskRunner> nss_task_runner_;
+
+  DISALLOW_COPY_AND_ASSIGN(TrustStoreNSS);
+};
+
+}  // namespace net
+
+#endif  // NET_CERT_INTERNAL_TRUST_STORE_NSS_H_