Add field trial test config for CBCM remote commands

Bug: None
Change-Id: I5ce839a67e9b05bc90641c90b7b24944efd68c47
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2542606
Commit-Queue: Caitlin Fischer <caitlinfischer@google.com>
Reviewed-by: Caitlin Fischer <caitlinfischer@google.com>
Cr-Commit-Position: refs/heads/master@{#828345}

testing/variations/fieldtrial_testing_config.json

@@ -1256,6 +1256,25 @@
             ]
         }
     ],
+    "CBCMRemoteCommandsStudy": [
+        {
+            "platforms": [
+                "chromeos",
+                "linux",
+                "mac",
+                "windows"
+            ],
+            "experiments": [
+                {
+                    "name": "Enabled",
+                    "enable_features": [
+                        "CBCMPolicyInvalidations",
+                        "CBCMRemoteCommands"
+                    ]
+                }
+            ]
+        }
+    ],
     "CSSMatchedPropertiesCacheDependencies": [
         {
             "platforms": [