Refactor some certificate verification tests in preparation to adding

net/cert/internal/test_helpers.h

 // Copyright 2015 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_TEST_HELPERS_H_
 #define NET_CERT_INTERNAL_TEST_HELPERS_H_
 
 #include <stddef.h>
 
 #include <ostream>
 #include <string>
 #include <vector>
 
+#include "net/cert/internal/parsed_certificate.h"
+#include "net/cert/internal/trust_store.h"
 #include "net/der/input.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 
 namespace der {
 
 // This function is used by GTest to support EXPECT_EQ() for der::Input.
 void PrintTo(const Input& data, ::std::ostream* os);
 
@@ skipping 43 matching lines @@
 // This is the same as the variant above, however it uses template magic so an
 // mappings array can be passed in directly (and the correct length is
 // inferred).
 template <size_t N>
 ::testing::AssertionResult ReadTestDataFromPemFile(
     const std::string& file_path_ascii,
     const PemBlockMapping(&mappings)[N]) {
   return ReadTestDataFromPemFile(file_path_ascii, mappings, N);
 }
 
+// Reads a test case from |file_name|. Test cases are comprised of a
+// certificate chain, trust anchor, a timestamp to validate at, and the
+// expected result of verification.
+void ReadVerifyCertChainTestFromFile(const std::string& file_name,
+                                     ParsedCertificateList* chain,
+                                     scoped_refptr<TrustAnchor>* trust_anchor,
+                                     der::GeneralizedTime* time,
+                                     bool* verify_result);
+
+// Reads a data file relative to the src root directory.
+std::string ReadTestFileToString(const std::string& file_name);
+
 }  // namespace net
 
 #endif  // NET_CERT_INTERNAL_TEST_HELPERS_H_