Refactor net tests to use GMock matchers for checking net::Error results

net/cert/internal/name_constraints_unittest.cc

 // 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.
 
 #include "net/cert/internal/name_constraints.h"
 
 #include <memory>
 
 #include "net/base/ip_address.h"
 #include "net/cert/internal/test_helpers.h"
+#include "net/test/gtest_util.h"
+#include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
+using net::test::IsOk;
+
 namespace net {
 namespace {
 
 ::testing::AssertionResult LoadTestData(const char* token,
                                         const std::string& basename,
                                         std::string* result) {
   std::string path = "net/data/name_constraints_unittest/" + basename;
 
   const PemBlockMapping mappings[] = {
       {token, result},
@@ skipping 1099 matching lines @@
 
 TEST_P(ParseNameConstraints,
        GeneralNamesCreateFromDerFailsOnInvalidIpInSubjectAltName) {
   std::string invalid_san_der;
   ASSERT_TRUE(LoadTestSubjectAltNameData("san-invalid-ipaddress.pem",
                                          &invalid_san_der));
   EXPECT_FALSE(GeneralNames::CreateFromDer(der::Input(&invalid_san_der)));
 }
 
 }  // namespace net