Refactor how net/data/verify_certificate_chain_unittest/*

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

-[Created by: generate-serverauth-ec-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 215 matching lines @@
          75:11:de:89:2b:bc:3f:34:bd:7f:64:d4:7d:db:dd:de:f4:af:
          8c:8a:30:29:2a:47:a0:56:9a:c9:69:c7:44:d2:78:05:62:bd:
          3d:13:ab:52:15:31:fc:bf:19:1f:3f:f6:76:c7:f1:92:3a:f0:
          61:44:50:2a:e0:46:5b:15:a1:1f:d8:0d:fd:46:b9:07:38:6a:
          21:40:50:03:ae:73:cd:2e:49:3e:29:a6:65:67:e4:1c:5b:6e:
          41:ed:7c:6e:0d:e9:7c:32:db:99:17:90:72:3f:d5:4c:d7:ec:
          05:45:ee:23:40:db:9c:4e:c3:ca:42:d1:18:c3:54:94:f1:10:
          8b:98:75:b7:1e:ee:f1:8f:b8:2d:c6:bc:73:a6:74:69:f6:3c:
          ca:75:1e:65:10:35:e8:d0:9f:d0:69:6b:cc:d4:fb:d4:93:05:
          a1:2a:26:34
------BEGIN TRUST_ANCHOR_UNCONSTRAINED-----
+-----BEGIN CERTIFICATE-----
 MIIDZTCCAk2gAwIBAgIBATANBgkqhkiG9w0BAQsFADAPMQ0wCwYDVQQDDARSb290
 MB4XDTE1MDEwMTEyMDAwMFoXDTE2MDEwMTEyMDAwMFowDzENMAsGA1UEAwwEUm9v
 dDCCASIwDQYJKoZIhvcNAQEBBQADggEPADCCAQoCggEBAME+05Y79CdwMO3A7ak4
 3KIqVmXRgno2ro8A/Uzb+4Ct9tFxwIcJ1kDDHqiG1+3QYl9noIQkcYgxi/6LP3Hw
 0lZJR3RAuMgvKy7VqAZGrzCSjSATpHydUZ+O1ntPrqlZuRfQtjESRVhNWYbpu3Ue
 4dsPELsMF/tIidJ+0HaWJon1pHcJp3pPi90klRXOb9aCA3ZS8HxdaSX/5xLB+0G+
 jOnGe6jiiAPihhYPIDSjfSg+FPWaQDDT/JYh5L+RgK6jD6QAOcNACpDUmsj+L8l0
 FhvEE0ALL6+80Ed4GV9PpZqURh1xyfYEvWFDgDPDV/td320gMsGy8aZGSxmV8z9T
 930CAwEAAaOByzCByDAdBgNVHQ4EFgQUD4HRIMdreU0IwlRMFGnNm8fFw0EwHwYD
 VR0jBBgwFoAUD4HRIMdreU0IwlRMFGnNm8fFw0EwNwYIKwYBBQUHAQEEKzApMCcG
 CCsGAQUFBzAChhtodHRwOi8vdXJsLWZvci1haWEvUm9vdC5jZXIwLAYDVR0fBCUw
 IzAhoB+gHYYbaHR0cDovL3VybC1mb3ItY3JsL1Jvb3QuY3JsMA4GA1UdDwEB/wQE
 AwIBBjAPBgNVHRMBAf8EBTADAQH/MA0GCSqGSIb3DQEBCwUAA4IBAQA5OLX4CdDC
 jDLjibwwsX9vFlfCSlSopAHEpmgQOv9X5VDYMO7zHpxU8bYZt2GhxIjRmlqpaiq8
 pRAfIgqDplsVj5m9COepyk8/G+fSXoXvGUN2DJuQfUNcFY11Ed6JK7w/NL1/ZNR9
 293e9K+MijApKkegVprJacdE0ngFYr09E6tSFTH8vxkfP/Z2x/GSOvBhRFAq4EZb
 FaEf2A39RrkHOGohQFADrnPNLkk+KaZlZ+QcW25B7XxuDel8MtuZF5ByP9VM1+wF
 Re4jQNucTsPKQtEYw1SU8RCLmHW3Hu7xj7gtxrxzpnRp9jzKdR5lEDXo0J/QaWvM
 1PvUkwWhKiY0
------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-----