Add TrustStoreNSS and TrustStoreCollection

net/cert/internal/trust_store_collection.cc

Index: net/cert/internal/trust_store_collection.cc
diff --git a/net/cert/internal/trust_store_collection.cc b/net/cert/internal/trust_store_collection.cc
new file mode 100644
index 0000000000000000000000000000000000000000..dc35306eee2a206082ab0f72e4050d82c9a607ea
--- /dev/null
+++ b/net/cert/internal/trust_store_collection.cc
@@ -0,0 +1,38 @@
+// 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 "net/cert/internal/trust_store_collection.h"
+
+namespace net {
+
+TrustStoreCollection::TrustStoreCollection() = default;
+TrustStoreCollection::~TrustStoreCollection() = default;
+
+void TrustStoreCollection::SetPrimaryTrustStore(TrustStore* store) {
+  DCHECK(!primary_store_);
+  DCHECK(store);
+  primary_store_ = store;
+}
+
+void TrustStoreCollection::AddTrustStoreSynchronousOnly(TrustStore* store) {
+  DCHECK(store);
+  sync_only_stores_.push_back(store);
+}
+
+void TrustStoreCollection::FindTrustAnchorsForCert(
+    const scoped_refptr<ParsedCertificate>& cert,
+    const TrustAnchorsCallback& callback,
+    TrustAnchors* synchronous_matches,
+    std::unique_ptr<Request>* out_req) const {
+  if (primary_store_)
+    primary_store_->FindTrustAnchorsForCert(cert, callback, synchronous_matches,
+                                            out_req);
+
+  for (auto* store : sync_only_stores_) {
+    store->FindTrustAnchorsForCert(cert, TrustAnchorsCallback(),
+                                   synchronous_matches, nullptr);
+  }
+}
+
+}  // namespace net