Move Cast certificate verification code from extensions to components.

extensions/test/data/cast_certificates/vizio.pem

-$ openssl x509 -text -noout < [CERTIFICATE]
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 997 (0x3e5)
-    Signature Algorithm: sha256WithRSAEncryption
-        Issuer: C=US, ST=California, L=Mountain View, O=Google Inc, OU=Cast, CN=Cast TV ICA (Vizio)
-        Validity
-            Not Before: Nov 11 02:06:19 2015 GMT
-            Not After : Nov 10 02:06:19 2016 GMT
-        Subject: ST=California, C=US, L=Mountain View, OU=Cast TV (Vizio), O=Google Inc, CN=9V0000VB FA8FCA784D01
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-                Public-Key: (2048 bit)
-                Modulus:
-                    00:a9:4b:a9:c9:1a:98:9e:71:b0:20:09:1d:bb:7c:
-                    7c:e9:dd:29:3d:b5:43:4e:d8:14:b3:3f:d1:0e:d1:
-                    ce:4c:fd:5e:b2:4b:5b:19:aa:f7:f5:b9:e7:f7:b3:
-                    b1:33:a7:6b:d2:62:67:b2:62:80:51:21:9e:db:5c:
-                    d2:16:e5:a4:b4:e7:83:e2:43:1d:ce:d5:6a:b2:4a:
-                    6d:ea:b8:7a:9d:1b:a8:1f:3f:19:b5:e0:a3:db:12:
-                    be:d2:19:e2:66:ce:d0:c9:03:6d:ab:92:db:6c:2c:
-                    24:64:3b:de:44:de:5a:bd:72:a6:78:94:c9:40:ca:
-                    d9:6f:5c:b0:b7:8b:f8:51:40:e8:59:cd:52:99:0c:
-                    be:56:8c:c6:05:ed:4c:bb:26:d8:da:04:e1:17:e9:
-                    a5:8d:3d:d1:bb:c4:55:b4:8f:98:77:53:12:9b:8d:
-                    ae:12:29:8f:05:bf:9a:90:d1:22:20:09:0f:4f:1c:
-                    9f:de:9a:98:b3:74:29:64:eb:fa:97:91:92:c0:b3:
-                    42:75:31:ad:a5:5b:8d:6f:df:27:db:d4:97:52:23:
-                    fa:8e:59:c0:21:63:0f:cb:13:d1:5a:7f:c0:e2:10:
-                    fb:05:91:d4:b1:c2:8b:f8:e4:26:bf:c8:98:55:00:
-                    03:51:e5:bc:dd:df:7e:74:e3:b5:c8:7b:10:6f:9c:
-                    08:85
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:FALSE
-            X509v3 Key Usage: 
-                Digital Signature
-            X509v3 Extended Key Usage: 
-                TLS Web Client Authentication
-    Signature Algorithm: sha256WithRSAEncryption
-         61:4a:f2:50:20:68:8b:45:0d:81:6a:24:fb:bb:a1:9a:eb:36:
-         4c:db:61:fd:a6:9f:03:1b:c0:62:95:c8:fc:b6:76:fd:3d:43:
-         71:fd:7d:dd:b8:fa:68:02:8d:e8:76:75:f3:58:73:1a:77:89:
-         24:2f:91:d3:18:54:a0:75:80:91:a5:b8:59:1f:bc:5f:09:87:
-         be:0e:62:83:52:f0:45:56:08:bd:ff:e3:2e:96:f9:23:18:ef:
-         b8:3e:a9:27:b2:ee:1d:40:36:f9:ca:bb:d9:fa:4f:1f:d9:68:
-         41:48:57:cf:9a:6f:25:a1:6a:68:79:54:cb:94:68:5f:8c:c3:
-         7d:e7:14:18:27:5f:5f:65:a8:4d:49:49:bb:b8:bc:d6:43:13:
-         e9:ef:56:74:c9:a9:f0:68:a4:02:71:43:46:98:d1:ef:e1:64:
-         ef:9d:7f:8a:2b:de:19:e2:79:5f:a8:38:75:8e:0b:85:f8:14:
-         d8:84:ac:87:57:3d:52:fa:61:0a:f6:9d:d6:b2:9a:9a:73:47:
-         f8:99:49:60:4c:b1:7c:1e:e8:d3:f3:4f:0e:62:10:5f:a6:69:
-         94:13:08:78:9b:06:ed:57:52:da:b7:78:ac:da:08:26:2f:34:
-         4e:15:08:c0:03:96:bf:a6:ce:5c:63:22:be:d0:e8:99:94:ba:
-         42:f6:b9:57
------BEGIN CERTIFICATE-----
-MIIDsTCCApmgAwIBAgICA+UwDQYJKoZIhvcNAQELBQAwfDELMAkGA1UEBhMCVVMxEzARBgNVBAg
-MCkNhbGlmb3JuaWExFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxEzARBgNVBAoMCkdvb2dsZSBJbm
-MxDTALBgNVBAsMBENhc3QxHDAaBgNVBAMME0Nhc3QgVFYgSUNBIChWaXppbykwHhcNMTUxMTExM
-DIwNjE5WhcNMTYxMTEwMDIwNjE5WjCBiTETMBEGA1UECAwKQ2FsaWZvcm5pYTELMAkGA1UEBhMC
-VVMxFjAUBgNVBAcMDU1vdW50YWluIFZpZXcxGDAWBgNVBAsMD0Nhc3QgVFYgKFZpemlvKTETMBE
-GA1UECgwKR29vZ2xlIEluYzEeMBwGA1UEAwwVOVYwMDAwVkIgRkE4RkNBNzg0RDAxMIIBIjANBg
-kqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAqUupyRqYnnGwIAkdu3x86d0pPbVDTtgUsz/RDtHOT
-P1esktbGar39bnn97OxM6dr0mJnsmKAUSGe21zSFuWktOeD4kMdztVqskpt6rh6nRuoHz8ZteCj
-2xK+0hniZs7QyQNtq5LbbCwkZDveRN5avXKmeJTJQMrZb1ywt4v4UUDoWc1SmQy+VozGBe1Muyb
-Y2gThF+mljT3Ru8RVtI+Yd1MSm42uEimPBb+akNEiIAkPTxyf3pqYs3QpZOv6l5GSwLNCdTGtpV
-uNb98n29SXUiP6jlnAIWMPyxPRWn/A4hD7BZHUscKL+OQmv8iYVQADUeW83d9+dOO1yHsQb5wIh
-QIDAQABoy8wLTAJBgNVHRMEAjAAMAsGA1UdDwQEAwIHgDATBgNVHSUEDDAKBggrBgEFBQcDAjAN
-BgkqhkiG9w0BAQsFAAOCAQEAYUryUCBoi0UNgWok+7uhmus2TNth/aafAxvAYpXI/LZ2/T1Dcf1
-93bj6aAKN6HZ181hzGneJJC+R0xhUoHWAkaW4WR+8XwmHvg5ig1LwRVYIvf/jLpb5IxjvuD6pJ7
-LuHUA2+cq72fpPH9loQUhXz5pvJaFqaHlUy5RoX4zDfecUGCdfX2WoTUlJu7i81kMT6e9WdMmp8
-GikAnFDRpjR7+Fk751/iiveGeJ5X6g4dY4LhfgU2ISsh1c9UvphCvad1rKamnNH+JlJYEyxfB7o
-0/NPDmIQX6ZplBMIeJsG7VdS2rd4rNoIJi80ThUIwAOWv6bOXGMivtDomZS6Qva5Vw==
------END CERTIFICATE-----
-
-$ openssl x509 -text -noout < [CERTIFICATE]
-Certificate:
-    Data:
-        Version: 3 (0x2)
-        Serial Number: 49 (0x31)
-    Signature Algorithm: sha256WithRSAEncryption
-        Issuer: C=US, ST=California, L=Mountain View, O=Google Inc, OU=Cast, CN=Cast Root CA
-        Validity
-            Not Before: Apr 20 21:03:38 2015 GMT
-            Not After : Apr 17 21:03:38 2025 GMT
-        Subject: C=US, ST=California, L=Mountain View, O=Google Inc, OU=Cast, CN=Cast TV ICA (Vizio)
-        Subject Public Key Info:
-            Public Key Algorithm: rsaEncryption
-                Public-Key: (2048 bit)
-                Modulus:
-                    00:d4:02:fc:36:d7:4f:16:db:e2:95:8e:29:9a:2b:
-                    5d:47:8e:cc:32:78:7a:b2:f2:46:ac:bf:35:ad:c2:
-                    ca:7a:3e:be:50:4b:50:01:77:90:a3:a2:31:51:31:
-                    d6:7a:32:2b:43:bd:4e:f9:b6:39:2b:05:f2:97:bd:
-                    de:bb:19:bc:5d:73:17:7d:94:1e:9b:4c:e8:68:37:
-                    7e:d6:36:e5:a0:fb:75:52:78:83:4c:26:84:88:48:
-                    54:d8:73:fc:f7:f7:4a:3f:68:a6:a3:7b:46:96:03:
-                    38:5e:f3:21:4d:59:91:48:66:0a:ea:ed:69:8d:b2:
-                    86:53:af:41:e8:ca:c0:55:63:7d:fc:72:98:bf:b2:
-                    f4:ab:bb:2c:f3:3c:92:09:c3:01:f6:68:8e:76:c1:
-                    7c:a0:3b:0d:f6:a4:d5:92:b1:e3:dd:9c:4f:e8:04:
-                    d2:9b:59:70:72:dd:a0:60:53:ee:c7:36:c6:48:45:
-                    b7:d9:1b:3b:eb:eb:7e:c5:07:b2:9d:7d:cf:f1:6b:
-                    ae:02:25:de:af:84:30:8c:98:d9:e1:6d:8d:ef:f6:
-                    0a:63:bf:be:cd:42:09:f5:af:eb:f1:cc:d9:a2:e7:
-                    86:32:0b:0a:53:66:23:2f:51:e6:84:64:c6:b7:0f:
-                    98:af:24:75:33:5d:e3:d8:96:61:d7:57:a6:63:88:
-                    a2:4f
-                Exponent: 65537 (0x10001)
-        X509v3 extensions:
-            X509v3 Basic Constraints: 
-                CA:TRUE, pathlen:0
-            X509v3 Subject Key Identifier: 
-                04:71:E0:14:1C:45:75:DB:C5:DF:3E:11:6A:57:79:9D:D0:37:12:18
-            X509v3 Authority Key Identifier: 
-                keyid:7C:9A:1E:7D:DF:79:54:BC:D7:CC:5E:CA:99:86:45:79:65:74:28:19
-
-            X509v3 Key Usage: 
-                Certificate Sign, CRL Sign
-    Signature Algorithm: sha256WithRSAEncryption
-         86:36:6f:de:ec:8f:4a:bc:b7:de:9c:bd:9e:03:3f:57:11:62:
-         88:46:ee:cf:6d:21:58:43:31:df:af:46:35:b8:89:36:28:3e:
-         f3:c4:95:8a:b2:91:66:fe:7f:3f:64:5a:82:63:81:89:4a:0f:
-         34:5c:b2:bc:0a:80:d2:26:74:b4:69:be:39:bd:61:ad:e8:e8:
-         3f:c0:5b:93:d0:91:59:4a:ec:f2:a6:36:ec:83:4c:ba:37:40:
-         ef:be:84:72:b9:13:78:aa:c4:d2:bc:2c:e5:1a:90:d9:07:db:
-         ca:aa:2d:f4:cc:ad:c3:47:4e:ff:44:6a:9f:25:d5:ba:20:e1:
-         ae:9b:df:24:8c:a5:85:7d:d3:1c:93:22:6d:49:89:eb:ad:ee:
-         86:a6:3b:68:34:8a:24:a5:1a:11:40:f4:a2:41:16:3f:11:1e:
-         56:26:ee:4e:30:5b:9d:71:7e:92:58:fc:d1:d3:8e:a7:e0:2b:
-         24:1f:c3:be:b8:64:6e:61:05:88:18:fa:ee:be:b1:e0:60:26:
-         bf:cb:68:60:d8:6a:c7:d7:20:b4:84:9f:c0:eb:0a:fa:5e:3b:
-         f0:52:27:13:39:14:e4:a8:12:ea:f8:4b:19:5e:52:e6:86:6a:
-         be:83:7c:3d:31:26:66:d7:fb:a1:41:3c:d8:fb:a5:28:49:f9:
-         3f:2b:05:ab
------BEGIN CERTIFICATE-----
-MIIDzDCCArSgAwIBAgIBMTANBgkqhkiG9w0BAQsFADB1MQswCQYDVQQGEwJVUzETMBEGA1UECAw
-KQ2FsaWZvcm5pYTEWMBQGA1UEBwwNTW91bnRhaW4gVmlldzETMBEGA1UECgwKR29vZ2xlIEluYz
-ENMAsGA1UECwwEQ2FzdDEVMBMGA1UEAwwMQ2FzdCBSb290IENBMB4XDTE1MDQyMDIxMDMzOFoXD
-TI1MDQxNzIxMDMzOFowfDELMAkGA1UEBhMCVVMxEzARBgNVBAgMCkNhbGlmb3JuaWExFjAUBgNV
-BAcMDU1vdW50YWluIFZpZXcxEzARBgNVBAoMCkdvb2dsZSBJbmMxDTALBgNVBAsMBENhc3QxHDA
-aBgNVBAMME0Nhc3QgVFYgSUNBIChWaXppbykwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEKAo
-IBAQDUAvw2108W2+KVjimaK11HjswyeHqy8kasvzWtwsp6Pr5QS1ABd5CjojFRMdZ6MitDvU75t
-jkrBfKXvd67Gbxdcxd9lB6bTOhoN37WNuWg+3VSeINMJoSISFTYc/z390o/aKaje0aWAzhe8yFN
-WZFIZgrq7WmNsoZTr0HoysBVY338cpi/svSruyzzPJIJwwH2aI52wXygOw32pNWSsePdnE/oBNK
-bWXBy3aBgU+7HNsZIRbfZGzvr637FB7Kdfc/xa64CJd6vhDCMmNnhbY3v9gpjv77NQgn1r+vxzN
-mi54YyCwpTZiMvUeaEZMa3D5ivJHUzXePYlmHXV6ZjiKJPAgMBAAGjYDBeMA8GA1UdEwQIMAYBA
-f8CAQAwHQYDVR0OBBYEFARx4BQcRXXbxd8+EWpXeZ3QNxIYMB8GA1UdIwQYMBaAFHyaHn3feVS8
-18xeypmGRXlldCgZMAsGA1UdDwQEAwIBBjANBgkqhkiG9w0BAQsFAAOCAQEAhjZv3uyPSry33py
-9ngM/VxFiiEbuz20hWEMx369GNbiJNig+88SVirKRZv5/P2RagmOBiUoPNFyyvAqA0iZ0tGm+Ob
-1hrejoP8Bbk9CRWUrs8qY27INMujdA776EcrkTeKrE0rws5RqQ2Qfbyqot9Mytw0dO/0RqnyXVu
-iDhrpvfJIylhX3THJMibUmJ663uhqY7aDSKJKUaEUD0okEWPxEeVibuTjBbnXF+klj80dOOp+Ar
-JB/DvrhkbmEFiBj67r6x4GAmv8toYNhqx9cgtISfwOsK+l478FInEzkU5KgS6vhLGV5S5oZqvoN
-8PTEmZtf7oUE82PulKEn5PysFqw==
------END CERTIFICATE-----