Refactor how net/data/verify_certificate_chain_unittest/*

net/data/verify_certificate_chain_unittest/serverauth-rsa-ku-keyagreement/chain.pem

-[Created by: generate-serverauth-rsa-ku-keyagreement.py]
+[Created by: generate-chains.py]
 
 Certificate chain with 1 intermediate, a trusted root, and a target
 certificate for serverAuth that has only keyAgreement.
 
 Certificate:
     Data:
         Version: 3 (0x2)
         Serial Number: 1 (0x1)
     Signature Algorithm: sha256WithRSAEncryption
         Issuer: CN=Intermediate
@@ skipping 229 matching lines @@
          1e:52:e3:59:25:d5:2d:f2:dd:ff:0c:89:07:68:05:45:3c:0e:
          85:3c:1f:e9:81:5f:c3:f7:ea:c2:d1:ed:24:d8:55:83:14:75:
          49:3f:52:e2:19:24:f6:d6:9f:82:75:74:e5:97:af:af:04:ab:
          6b:41:c7:61:1c:9b:ed:3e:9c:c6:ff:e7:61:3b:20:29:30:5f:
          5f:b5:47:71:c6:87:ae:aa:31:ce:d1:b1:3f:27:ee:ca:66:0e:
          6d:2b:e1:99:66:66:94:81:10:18:28:4f:51:32:7a:c4:e1:ce:
          16:ae:69:26:0e:ad:2e:e0:30:cc:52:00:18:3d:e2:75:76:83:
          1f:19:02:7c:f6:54:1e:77:f8:18:e2:1e:c0:0b:2a:b9:6a:6a:
          69:25:5d:a7:f9:c9:3b:bd:22:cc:3b:f1:fd:41:f1:a5:fc:6b:
          65:9e:df:7c
------BEGIN TRUST_ANCHOR_UNCONSTRAINED-----
+-----BEGIN CERTIFICATE-----
 MIIDZTCCAk2gAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDDARSb290
 MB4XDTE1MDEwMTEyMDAwMFoXDTE2MDEwMTEyMDAwMFowDzENMAsGA1UEAwwEUm9v
 dDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBALLfCwuiipycaK0k+fnm
 le/kcR4A++y/sctu1kAwQno4h55bzVg+tzFcjQ2Eer7v5pi6TsWuKy9msrI/58Co
 i3VgYSpnitJVcoPi/9521mNYebqRwYDhBhs1nLPpGfjHIYDdngQYNd7fAIAhCQY8
 bJreENH9TS8nXlYkRGeISOQlUszHFz9pH3b8sYNFSF032oA+PX/2jeyDANYvxEFd
 ea6tFEwks14e/u3oORdKS8rrEF1urzhYsRKlab29Y931IXEsNjdyUTs63o8eoOJr
 RdoCrX4Et9PIZDTG9Aig5ckCG29CIr7Ti3tjbjnElxfGmrqeJpvhZaZNSpNesk4Y
 ncECAwEAAaOByzCByDAdBgNVHQ4EFgQUcVBSNZJp91SxigzBk4c+hOm+XIAwHwYD
 VR0jBBgwFoAUcVBSNZJp91SxigzBk4c+hOm+XIAwNwYIKwYBBQUHAQEEKzApMCcG
 CCsGAQUFBzAChhtodHRwOi8vdXJsLWZvci1haWEvUm9vdC5jZXIwLAYDVR0fBCUw
 IzAhoB+gHYYbaHR0cDovL3VybC1mb3ItY3JsL1Jvb3QuY3JsMA4GA1UdDwEB/wQE
 AwIBBjAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQB6yqCHKJT0
 FibLHTuW960XcRgxhnnw9OtXM2FYM6tFtEBQBafGtqg4t1CfWYXyVzPpamIrTV3J
 +/6hys5ZJV3n+1V5EaXvFVGQlJpYIO+pgzhCLRHoGNktHz8eUuNZJdUt8t3/DIkH
 aAVFPA6FPB/pgV/D9+rC0e0k2FWDFHVJP1LiGST21p+CdXTll6+vBKtrQcdhHJvt
 PpzG/+dhOyApMF9ftUdxxoeuqjHO0bE/J+7KZg5tK+GZZmaUgRAYKE9RMnrE4c4W
 rmkmDq0u4DDMUgAYPeJ1doMfGQJ89lQed/gY4h7ACyq5amppJV2n+ck7vSLMO/H9
 QfGl/Gtlnt98
------END TRUST_ANCHOR_UNCONSTRAINED-----
-
-150302120000Z
------BEGIN TIME-----
-MTUwMzAyMTIwMDAwWg==
------END TIME-----
-
-SUCCESS
------BEGIN VERIFY_RESULT-----
-U1VDQ0VTUw==
------END VERIFY_RESULT-----
-
-serverAuth
------BEGIN KEY_PURPOSE-----
-c2VydmVyQXV0aA==
------END KEY_PURPOSE-----
+-----END CERTIFICATE-----