Pretty print field trials

testing/variations/fieldtrial_testing_config_chromeos.json

Index: testing/variations/fieldtrial_testing_config_chromeos.json
diff --git a/testing/variations/fieldtrial_testing_config_chromeos.json b/testing/variations/fieldtrial_testing_config_chromeos.json
index d9bbc4f6a7bab13ca93421d589fb8ab79ce7e25a..7d81fced2a359d9cff6f735259e3311b47ca03ac 100644
--- a/testing/variations/fieldtrial_testing_config_chromeos.json
+++ b/testing/variations/fieldtrial_testing_config_chromeos.json
@@ -1,9 +1,22 @@
 {
+    "AutofillFieldMetadata": [
+        {
+            "group_name": "Enabled"
+        }
+    ],
     "CaptivePortalInterstitial": [
         {
             "group_name": "Enabled"
         }
     ],
+    "QUIC": [
+        {
+            "group_name": "Enabled",
+            "params": {
+                "alternate_protocol_probability_threshold": "0.01"
+            }
+        }
+    ],
     "ReportCertificateErrors": [
         {
             "group_name": "ShowAndPossiblySend",
@@ -46,7 +59,7 @@
             "group_name": "Disabled"
         }
     ],
-    "AutofillFieldMetadata": [
+    "TabSyncByRecency": [
         {
             "group_name": "Enabled"
         }
@@ -56,19 +69,6 @@
             "group_name": "DefaultEnabled"
         }
     ],
-    "QUIC": [
-        {
-            "group_name": "Enabled",
-            "params": {
-              "alternate_protocol_probability_threshold": "0.01"
-            }
-        }
-    ],
-    "TabSyncByRecency": [
-        {
-            "group_name": "Enabled"
-        }
-    ],
     "VarationsServiceControl": [
         {
             "group_name": "Interval_30min",