Update Autofill company field experiment.

The experiment is extended by also testing for blacklisting social
titles from being filled into company fields.

The study experiments with restricting Autofill from filling company
fields in different ways. Additionally to experimenting with not filling
company fields altogether as well as not filling potential birthyears
into company names, the extended study experiments with not filling
(some) social titles.


Bug: 961675
Change-Id: I5e77bcfa08eb6b3306fe809136817e5544034248
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2050313Reviewed-by: Jesse Doherty <jwd@chromium.org>
Reviewed-by: Ioana Pandele <ioanap@chromium.org>
Commit-Queue: Christoph Schwering <schwering@google.com>
Cr-Commit-Position: refs/heads/master@{#741753}

testing/variations/fieldtrial_testing_config.json

@@ -768,10 +768,11 @@
             ],
             "experiments": [
                 {
-                    "name": "RejectBirthyearAsCompany",
+                    "name": "RejectBirthyearAndSocialTitleAsCompany_20200210",
                     "enable_features": [
                         "AutofillEnableCompanyName",
-                        "AutofillRejectCompanyBirthyear"
+                        "AutofillRejectCompanyBirthyear",
+                        "AutofillRejectCompanySocialTitle"
                     ]
                 }
             ]