Refactor how net/data/verify_certificate_chain_unittest/*

net/data/verify_certificate_chain_unittest/unconstrained-root-basic-constraints-ca-false/generate-chains.py

Index: net/data/verify_certificate_chain_unittest/unconstrained-root-basic-constraints-ca-false/generate-chains.py
diff --git a/net/data/verify_certificate_chain_unittest/generate-unconstrained-root-basic-constraints-ca-false.py b/net/data/verify_certificate_chain_unittest/unconstrained-root-basic-constraints-ca-false/generate-chains.py
similarity index 74%
rename from net/data/verify_certificate_chain_unittest/generate-unconstrained-root-basic-constraints-ca-false.py
rename to net/data/verify_certificate_chain_unittest/unconstrained-root-basic-constraints-ca-false/generate-chains.py
index 1f71d1ed4a0a9c051ca9288430074393d66b73cc..21832325d7e90ec0d77013000eb4f44ae1c06c20 100755
--- a/net/data/verify_certificate_chain_unittest/generate-unconstrained-root-basic-constraints-ca-false.py
+++ b/net/data/verify_certificate_chain_unittest/unconstrained-root-basic-constraints-ca-false/generate-chains.py
@@ -8,6 +8,9 @@ has a basic constraints extension that indicates it is NOT a CA. Verification
 is expected to succeed as constraints on the root certificate are not applied
 to the trust anchor."""
 
+import sys
+sys.path += ['..']
+
 import common
 
 # Self-signed root certificate (used as trust anchor) with non-CA basic
@@ -21,12 +24,5 @@ intermediate = common.create_intermediate_certificate('Intermediate', root)
 # Target certificate.
 target = common.create_end_entity_certificate('Target', intermediate)
 
-chain = [target, intermediate]
-trusted = common.TrustAnchor(root, constrained=False)
-time = common.DEFAULT_TIME
-key_purpose = common.DEFAULT_KEY_PURPOSE
-verify_result = True
-errors = None
-
-common.write_test_file(__doc__, chain, trusted, time, key_purpose,
-                       verify_result, errors)
+chain = [target, intermediate, root]
+common.write_chain(__doc__, chain, 'chain.pem')