Add certificate pinning for crypto.cat.

net/base/transport_security_state_static.json

Index: net/base/transport_security_state_static.json
diff --git a/net/base/transport_security_state_static.json b/net/base/transport_security_state_static.json
index 2e44bcba11bf801d6d47a8e82ad9984f25a1d194..59f686e9b22bd26bd2f39b93328b88add90c5880 100644
--- a/net/base/transport_security_state_static.json
+++ b/net/base/transport_security_state_static.json
@@ -137,6 +137,13 @@
         "AlphaSSL_G2",
         "Tor2web"
       ]
+    },
+    {
+      "name": "cryptoCat",
+      "static_spki_hashes": [
+        "DigiCertEVRoot",
+        "CryptoCat1"
+      ]
     }
   ],
 
@@ -487,7 +494,7 @@
     { "name": "www.developer.mydigipass.com", "mode": "force-https" },
     { "name": "sandbox.mydigipass.com", "mode": "force-https" },
     { "name": "www.sandbox.mydigipass.com", "mode": "force-https" },
-    { "name": "crypto.cat", "include_subdomains": true, "mode": "force-https" },
+    { "name": "crypto.cat", "include_subdomains": true, "mode": "force-https", "pins": "cryptoCat" },
     { "name": "bigshinylock.minazo.net", "include_subdomains": true, "mode": "force-https" },
     { "name": "crate.io", "include_subdomains": true, "mode": "force-https" },
     { "name": "twitter.com", "mode": "force-https", "pins": "twitterCom" },