Add field trial testing config for the GooglePasswordManager UI on Android

Change-Id: I14052aebbf13f4f363b49ea1f6ebb74a780a2c65
Reviewed-on: https://chromium-review.googlesource.com/c/1456074Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Reviewed-by: Jesse Doherty <jwd@chromium.org>
Commit-Queue: Ioana Pandele <ioanap@chromium.org>
Cr-Commit-Position: refs/heads/master@{#630718}

testing/variations/fieldtrial_testing_config.json

@@ -138,6 +138,24 @@
             ]
         }
     ],
+    "AndroidGooglePasswordManager": [
+        {
+            "platforms": [
+                "android"
+            ],
+            "experiments": [
+                {
+                    "name": "Enabled",
+                    "params": {
+                        "min-google-play-services-version": "14700000"
+                    },
+                    "enable_features": [
+                        "google-password-manager"
+                    ]
+                }
+            ]
+        }
+    ],
     "AndroidInProductHelpContextualSearchPromotePanelOpen": [
         {
             "platforms": [