Refactor VerifyCertificateChain test data to include a key purpose

net/cert/internal/trust_store_nss_unittest.cc

Index: net/cert/internal/trust_store_nss_unittest.cc
diff --git a/net/cert/internal/trust_store_nss_unittest.cc b/net/cert/internal/trust_store_nss_unittest.cc
index f9d1f272d746bc0f3e5ea19e2efcc9bcf26ce7fc..e83ba67286501f8b350e7685dac566ea5dbbea15 100644
--- a/net/cert/internal/trust_store_nss_unittest.cc
+++ b/net/cert/internal/trust_store_nss_unittest.cc
@@ -24,14 +24,14 @@ class TrustStoreNSSTest : public testing::Test {
   void SetUp() override {
     ASSERT_TRUE(test_nssdb_.is_open());
 
+    VerifyCertChainTest test;
     ParsedCertificateList chain;
-    bool unused_verify_result;
-    der::GeneralizedTime unused_time;
-    std::string unused_errors;
-
     ReadVerifyCertChainTestFromFile(
         "net/data/verify_certificate_chain_unittest/key-rollover-oldchain.pem",
-        &chain, &oldroot_, &unused_time, &unused_verify_result, &unused_errors);
+        &test);
+    chain = test.chain;
+    oldroot_ = test.trust_anchor;
+
     ASSERT_EQ(2U, chain.size());
     target_ = chain[0];
     oldintermediate_ = chain[1];
@@ -39,12 +39,12 @@ class TrustStoreNSSTest : public testing::Test {
     ASSERT_TRUE(oldintermediate_);
     ASSERT_TRUE(oldroot_);
 
-    scoped_refptr<TrustAnchor> unused_root;
     ReadVerifyCertChainTestFromFile(
         "net/data/verify_certificate_chain_unittest/"
         "key-rollover-longrolloverchain.pem",
-        &chain, &unused_root, &unused_time, &unused_verify_result,
-        &unused_errors);
+        &test);
+    chain = test.chain;
+
     ASSERT_EQ(4U, chain.size());
     newintermediate_ = chain[1];
     newroot_ = TrustAnchor::CreateFromCertificateNoConstraints(chain[2]);