Turn on recurrent interstitial in field trial testing config

Bug: 839969
Change-Id: Ib677bf13f737e5cc2fb5cd5b43466f2d6b796f69
Reviewed-on: https://chromium-review.googlesource.com/1096370Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Emily Stark <estark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#566580}

testing/variations/fieldtrial_testing_config.json

@@ -3084,6 +3084,28 @@
             ]
         }
     ],
+    "RecurrentSSLInterstitial": [
+        {
+            "platforms": [
+                "android",
+                "chromeos",
+                "linux",
+                "mac",
+                "win"
+            ],
+            "experiments": [
+                {
+                    "name": "RecurrentInterstitialWithUIEnabled",
+                    "params": {
+                        "show_error_ui": "true"
+                    },
+                    "enable_features": [
+                        "RecurrentInterstitialFeature"
+                    ]
+                }
+            ]
+        }
+    ],
     "RemoveNavigationHistory": [
         {
             "platforms": [