Make TrustStore into an interface, move impl to TrustStoreInMemory.

components/cast_certificate/cast_cert_validator_unittest.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 "components/cast_certificate/cast_cert_validator.h"
 
 #include "components/cast_certificate/cast_cert_validator_test_helpers.h"
 #include "net/cert/internal/parsed_certificate.h"
-#include "net/cert/internal/trust_store.h"
+#include "net/cert/internal/trust_store_in_memory.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace cast_certificate {
 
 namespace {
 
 // Creates an std::string given a uint8_t array.
 template <size_t N>
 std::string CreateString(const uint8_t (&data)[N]) {
   return std::string(reinterpret_cast<const char*>(data), N);
@@ skipping 40 matching lines @@
 void RunTest(TestResult expected_result,
              const std::string& expected_common_name,
              CastDeviceCertPolicy expected_policy,
              const std::string& certs_file_name,
              const base::Time& time,
              TrustStoreDependency trust_store_dependency,
              const std::string& optional_signed_data_file_name) {
   auto certs =
       cast_certificate::testing::ReadCertificateChainFromFile(certs_file_name);
 
-  std::unique_ptr<net::TrustStore> trust_store;
+  std::unique_ptr<net::TrustStoreInMemory> trust_store;
 
   switch (trust_store_dependency) {
     case TRUST_STORE_BUILTIN:
       // Leave trust_store as nullptr.
       break;
 
     case TRUST_STORE_FROM_TEST_FILE:
     case TRUST_STORE_FROM_TEST_FILE_UNCONSTRAINED: {
       ASSERT_FALSE(certs.empty());
 
       // Parse the root certificate of the chain.
       scoped_refptr<net::ParsedCertificate> root =
           net::ParsedCertificate::CreateFromCertificateCopy(certs.back(), {});
       ASSERT_TRUE(root);
 
       // Remove it from the chain.
       certs.pop_back();
 
       // Add it to the trust store as a trust anchor
-      trust_store.reset(new net::TrustStore);
+      trust_store.reset(new net::TrustStoreInMemory);
 
       if (trust_store_dependency == TRUST_STORE_FROM_TEST_FILE_UNCONSTRAINED) {
         // This is a test-only mode where anchor constraints are not enforced.
         trust_store->AddTrustAnchor(
             net::TrustAnchor::CreateFromCertificateNoConstraints(
                 std::move(root)));
       } else {
         // This is the regular mode used by the TrustAnchors for the built-in
         // Cast store.
         trust_store->AddTrustAnchor(
@@ skipping 449 matching lines @@
   auto context =
       CertVerificationContextImplForTest(CreateString(kEx2PublicKeySpki));
 
   EXPECT_TRUE(context->VerifySignatureOverData(CreateString(kEx2Signature),
                                                CreateString(kEx2Message)));
 }
 
 }  // namespace
 
 }  // namespace cast_certificate