Add Android field trial config for recurrent interstitial

Bug: 839969
Change-Id: I07ad560f50aa25a10a5a9fb55ebdd525d0fa6e84
Reviewed-on: https://chromium-review.googlesource.com/1136711Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Emily Stark <estark@chromium.org>
Cr-Commit-Position: refs/heads/master@{#575054}

testing/variations/fieldtrial_testing_config.json

@@ -3243,7 +3243,6 @@
     "RecurrentSSLInterstitial": [
         {
             "platforms": [
-                "android",
                 "chromeos",
                 "linux",
                 "mac",
@@ -3260,6 +3259,23 @@
                     ]
                 }
             ]
+        },
+        {
+            "platforms": [
+                "android"
+            ],
+            "experiments": [
+                {
+                    "name": "RecurrentInterstitialWithUIEnabled",
+                    "params": {
+                        "mode": "pref",
+                        "show_error_ui": "true"
+                    },
+                    "enable_features": [
+                        "RecurrentInterstitialFeature"
+                    ]
+                }
+            ]
         }
     ],
     "RemoveNavigationHistory": [