Update Integrity/HTTPS experiment testing variations

Threw in all the parameters we're now using to attempt to stop the
automated complaints in the experiment config.

Change-Id: I8a102b50f5f1aad0e1171627046d6d4eb4b5adf4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2593566
Commit-Queue: Eric Orth <ericorth@chromium.org>
Auto-Submit: Eric Orth <ericorth@chromium.org>
Reviewed-by: Dan McArdle <dmcardle@chromium.org>
Cr-Commit-Position: refs/heads/master@{#837616}

testing/variations/fieldtrial_testing_config.json

@@ -2617,6 +2617,11 @@
                 {
                     "name": "DnsHttpssvcStudy",
                     "params": {
+                        "DnsHttpssvcControlDomainWildcard": "true",
+                        "DnsHttpssvcExperimentDomains": "youtube.com.au",
+                        "DnsHttpssvcExtraTimeMs": "50",
+                        "DnsHttpssvcExtraTimePercent": "20",
+                        "DnsHttpssvcUseHttpssvc": "true",
                         "DnsHttpssvcUseIntegrity": "true"
                     },
                     "enable_features": [