pki library: Add CertIssuerSourceNSS that retrieves intermediate certs from NSS.

net/data/cert_issuer_source_static_unittest/i3_2.pem

Index: net/data/cert_issuer_source_static_unittest/i3_2.pem
diff --git a/net/data/cert_issuer_source_static_unittest/i3_2.pem b/net/data/cert_issuer_source_static_unittest/i3_2.pem
new file mode 100644
index 0000000000000000000000000000000000000000..c92719f4d1a6363c3fd0f3880330c0aec6f08a08
--- /dev/null
+++ b/net/data/cert_issuer_source_static_unittest/i3_2.pem
@@ -0,0 +1,90 @@
+Generated by ./generate-certs.py.
+Refer to generator script docstring for details.
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number: 6 (0x6)
+    Signature Algorithm: sha256WithRSAEncryption
+        Issuer: CN=Root
+        Validity
+            Not Before: Jan  1 12:00:00 2015 GMT
+            Not After : Jan  1 12:00:00 2016 GMT
+        Subject: CN=I3
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                Public-Key: (2048 bit)
+                Modulus:
+                    00:c9:4c:34:72:23:55:0b:48:d2:a4:6e:69:e8:68:
+                    86:c2:7f:ff:18:a7:75:05:00:b8:76:f9:1e:89:38:
+                    4b:2c:b5:fa:56:93:96:28:a6:59:a4:e4:a5:e9:68:
+                    a2:b5:0b:8d:32:b4:cf:94:e0:9f:11:14:66:9a:41:
+                    25:d6:de:f3:6b:ff:6a:b9:e5:61:6a:82:ce:65:75:
+                    1e:c6:78:14:53:90:17:83:a2:07:26:86:08:b6:9c:
+                    54:be:1d:0d:dd:53:01:5f:50:21:37:92:c0:a9:2f:
+                    8d:4a:51:48:73:1f:7e:17:93:5a:5c:53:c8:f0:25:
+                    3e:94:ca:b9:82:8e:5a:d5:98:c8:1f:c7:f8:8c:9c:
+                    87:7b:8e:ee:da:92:34:6e:ab:1d:43:50:7e:87:f9:
+                    b8:f7:49:58:be:f7:54:78:e8:21:6d:96:45:fa:68:
+                    3b:99:9f:4a:86:40:b1:2e:fc:15:e4:28:8d:3b:13:
+                    50:8f:33:6a:b7:c3:fc:fb:d6:fd:0b:97:c6:05:d4:
+                    6b:82:38:b2:1d:e3:5b:9d:60:97:de:1d:bc:1a:ed:
+                    bd:71:44:18:d6:4d:51:3a:db:8c:f6:da:ee:08:f9:
+                    2f:ca:b8:ee:5d:4e:1a:1a:38:8c:79:30:9f:ba:4e:
+                    54:eb:86:12:1f:cc:ec:5d:c4:36:07:89:bd:40:57:
+                    c9:8f
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Subject Key Identifier: 
+                1B:D9:9D:7F:59:30:84:1C:E4:92:D1:19:FF:EA:8D:02:B3:C1:8E:50
+            X509v3 Authority Key Identifier: 
+                keyid:B5:C3:65:5F:95:6A:F7:19:30:E3:80:DD:EF:B0:A4:1B:3D:BE:A6:9D
+
+            Authority Information Access: 
+                CA Issuers - URI:http://url-for-aia/Root.cer
+
+            X509v3 CRL Distribution Points: 
+
+                Full Name:
+                  URI:http://url-for-crl/Root.crl
+
+            X509v3 Key Usage: critical
+                Certificate Sign, CRL Sign
+            X509v3 Basic Constraints: critical
+                CA:TRUE
+    Signature Algorithm: sha256WithRSAEncryption
+         81:3a:5d:49:dd:8a:88:7b:91:2d:5f:81:b7:4d:3c:24:2c:36:
+         ae:da:4e:9a:8a:d6:8d:7a:eb:93:7c:af:ab:57:0b:29:3d:19:
+         1d:ed:52:26:a9:3f:bc:aa:c2:27:21:d0:7a:6a:1e:15:82:73:
+         af:1b:0d:f0:45:9a:e4:88:68:b7:21:a5:4f:a3:de:49:6d:f4:
+         a7:f6:51:c9:de:53:57:88:7a:1e:1f:58:26:c3:34:7e:06:ca:
+         d1:53:c7:dc:c3:c6:6d:6f:0c:c9:4d:e4:ca:5a:e6:91:1a:03:
+         02:ac:04:1a:2b:33:6d:82:94:62:11:8a:5c:12:02:6f:65:e8:
+         9e:21:10:30:c4:1c:77:be:44:bb:38:1e:3b:93:6e:85:e8:6f:
+         1e:7d:12:f4:e9:ae:11:06:11:12:4b:63:ae:cb:c6:77:58:c4:
+         18:3f:aa:d5:bf:a1:30:0d:ce:d6:d7:4d:94:4e:4b:af:80:50:
+         9a:5f:26:aa:49:c5:68:c4:3d:f2:e7:bc:38:6f:45:13:62:e4:
+         e2:1f:8d:54:f5:91:a3:06:22:49:ca:f3:f3:13:46:7c:09:90:
+         48:ba:61:13:08:5a:b0:bd:ed:88:45:ed:bc:7c:9f:03:8c:5e:
+         a8:24:6e:4c:1c:9e:15:f9:d3:0d:d2:fd:be:ac:01:52:f5:7c:
+         23:d7:1d:0b
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----