Adding fieldtrial config for the IncompatibleApplicationsWarning feature

Bug: 717696
Change-Id: I92bcf252641604da42532da8a4d1a8d5281bfeec
Reviewed-on: https://chromium-review.googlesource.com/996581Reviewed-by: Robert Kaplow <rkaplow@chromium.org>
Commit-Queue: Patrick Monette <pmonette@chromium.org>
Cr-Commit-Position: refs/heads/master@{#548501}

testing/variations/fieldtrial_testing_config.json

@@ -1683,6 +1683,22 @@
             ]
         }
     ],
+    "IncompatibleApplicationsWarning": [
+        {
+            "platforms": [
+                "win"
+            ],
+            "experiments": [
+                {
+                    "name": "Enabled",
+                    "enable_features": [
+                        "IncompatibleApplicationsWarning",
+                        "ModuleDatabase"
+                    ]
+                }
+            ]
+        }
+    ],
     "InstanceID": [
         {
             "platforms": [