Update field trial config for UnidoOnSignInV2 / UnidoUseDeviceInfo experiment

- SharingUseDeviceInfo will be extracted to a separate experiment

Bug: 1046572
Change-Id: I32b123923df718ec57053ca0b817d8494e2f9ac7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2041760
Commit-Queue: Brian White <bcwhite@chromium.org>
Auto-Submit: Alex Chau <alexchau@chromium.org>
Reviewed-by: Brian White <bcwhite@chromium.org>
Cr-Commit-Position: refs/heads/master@{#739400}

testing/variations/fieldtrial_testing_config.json

@@ -6984,7 +6984,7 @@
             ]
         }
     ],
-    "UnidoOnSignIn": [
+    "UnidoOnSignInV2": [
         {
             "platforms": [
                 "android",
@@ -6995,18 +6995,34 @@
             ],
             "experiments": [
                 {
-                    "name": "UseDeviceInfoEnabled",
+                    "name": "Enabled_2020-02-06",
                     "enable_features": [
-                        "SharingUseDeviceInfo"
-                    ],
-                    "disable_features": [
-                        "SharingDeriveVapidKey",
+                        "SharingSendViaSync",
                         "SyncDeviceInfoInTransportMode"
                     ]
                 }
             ]
         }
     ],
+    "UnidoUseDeviceInfo": [
+        {
+            "platforms": [
+                "android",
+                "chromeos",
+                "linux",
+                "mac",
+                "windows"
+            ],
+            "experiments": [
+                {
+                    "name": "Enabled",
+                    "enable_features": [
+                        "SharingUseDeviceInfo"
+                    ]
+                }
+            ]
+        }
+    ],
     "UnifiedAutoplay": [
         {
             "platforms": [