Add ua5v.com as a Google-owned and pinned domain.

BUG=1002262

Change-Id: I46732a4570ebbfc896e23c86f6689b29e82f0aec
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2636382
Commit-Queue: Ryan Sleevi <rsleevi@chromium.org>
Auto-Submit: Adam Langley <agl@chromium.org>
Reviewed-by: Ryan Sleevi <rsleevi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#844858}

net/http/transport_security_state_static.json

@@ -379,6 +379,7 @@
     { "name": "stats.g.doubleclick.net", "policy": "google", "mode": "force-https", "include_subdomains": true, "pins": "google" },
     { "name": "chromiumbugs.appspot.com", "policy": "google", "mode": "force-https", "include_subdomains": true, "pins": "google" },
     { "name": "youtube.com", "policy": "google", "mode": "force-https", "include_subdomains": true, "pins": "google" },
+    { "name": "ua5v.com", "policy": "google", "mode": "force-https", "include_subdomains": true, "pins": "google" },
 
     { "name": "webfilings.appspot.com", "policy": "google", "mode": "force-https", "include_subdomains": true, "pins": "google" },
     { "name": "webfilings-eu.appspot.com", "policy": "google", "mode": "force-https", "include_subdomains": true, "pins": "google" },