Add finch control of user population in low reputation requests

testing/variations/fieldtrial_testing_config.json

Index: testing/variations/fieldtrial_testing_config.json
diff --git a/testing/variations/fieldtrial_testing_config.json b/testing/variations/fieldtrial_testing_config.json
index 6786e527e25cab311d2395fad141cbcd77b85c18..8329cbecc1faf9a381055ba5471cb6aac9cf8db9 100644
--- a/testing/variations/fieldtrial_testing_config.json
+++ b/testing/variations/fieldtrial_testing_config.json
@@ -1940,6 +1940,114 @@
             ]
         }
     ],
+    "PasswordProtectionLowReputationPing": [
+        {
+            "platforms": [
+                "chromeos",
+                "linux",
+                "mac",
+                "win"
+            ],
+            "experiments": [
+                {
+                    "name": "SBEROnlyNoIncognito",
+                    "params": {
+                        "extended_reporting": "true",
+                        "history_sync": "false",
+                        "incognito": "false"
+                    },
+                    "enable_features": [
+                        "LowReputationPinging"
+                    ]
+                },

[Ilya Sherman, 2017/05/05 22:49:31]

Only a single experiment per study will actually get test coverage, so there's
no need to list multiple experiments here.  Instead, please list just the
variation that is most likely to ship.  If/when that changes, you can update the
one that gets broad test coverage.

[Jialiu Lin, 2017/05/05 22:58:52]

Good to know. in that case, I'll keep the first experiment for each study.
Thanks!

+                {
+                    "name": "SBERAndHistorySyncNoIncognito",
+                    "params": {
+                        "extended_reporting": "true",
+                        "history_sync": "true",
+                        "incognito": "false"
+                    },
+                    "enable_features": [
+                        "LowReputationPinging"
+                    ]
+                },
+                {
+                    "name": "AllButNoIncognito",
+                    "params": {
+                        "all_population": "true",
+                        "incognito": "false"
+                    },
+                    "enable_features": [
+                        "LowReputationPinging"
+                    ]
+                },
+                {
+                    "name": "All",
+                    "params": {
+                        "all_population": "true",
+                        "incognito": "true"
+                    },
+                    "enable_features": [
+                        "LowReputationPinging"
+                    ]
+                }
+            ]
+        }
+    ],
+    "PasswordProtectionProtectedPasswordEntryPing": [
+        {
+            "platforms": [
+                "chromeos",
+                "linux",
+                "mac",
+                "win"
+            ],
+            "experiments": [
+                {
+                    "name": "SBEROnlyNoIncognito",
+                    "params": {
+                        "extended_reporting": "true",
+                        "history_sync": "false",
+                        "incognito": "false"
+                    },
+                    "enable_features": [
+                        "ProtectedPasswordEntryPinging"
+                    ]
+                },
+                {
+                    "name": "SBERAndHistorySyncNoIncognito",
+                    "params": {
+                        "extended_reporting": "true",
+                        "history_sync": "true",
+                        "incognito": "false"
+                    },
+                    "enable_features": [
+                        "ProtectedPasswordEntryPinging"
+                    ]
+                },
+                {
+                    "name": "AllButNoIncognito",
+                    "params": {
+                        "all_population": "true",
+                        "incognito": "false"
+                    },
+                    "enable_features": [
+                        "LowReputationPinging"
+                    ]
+                },
+                {
+                    "name": "All",
+                    "params": {
+                        "all_population": "true",
+                        "incognito": "true"
+                    },
+                    "enable_features": [
+                        "LowReputationPinging"
+                    ]
+                }
+            ]
+        }
+    ],
     "PasswordSeparatedSigninFlow": [
         {
             "platforms": [