Use experimentation framework parameters for location sensitivity

chrome/test/data/extensions/api_test/metrics/test.js

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // metrics api test
 // browser_tests.exe --gtest_filter=ExtensionApiTest.Metrics
 
 // Any changes to the logging done in these functions should be matched
 // with the checks done in IN_PROC_BROWSER_TEST_F(ExtensionApiTest, Metrics).
 // See metrics_apitest.cc.
@@ skipping 53 matching lines @@
       chrome.test.assertEq('', group);
       chrome.metricsPrivate.getFieldTrial('apitestfieldtrial2', test2Callback);
     };
 
     var test2Callback = function(group) {
       chrome.test.assertEq('group1', group);
       chrome.test.succeed();
     };
 
     chrome.metricsPrivate.getFieldTrial('apitestfieldtrial1', test1Callback);
-  }
+  },
+
+  function getVariationParams1() {
+    chrome.metricsPrivate.getVariationParams(
+        'apitestfieldtrial1', function(params) {
+      chrome.test.assertEq(undefined, params);
+      chrome.test.succeed();
+    });
+  },
+
+  function getVariationParams2() {
+    chrome.metricsPrivate.getVariationParams(
+        'apitestfieldtrial2', function(params) {
+      chrome.test.assertEq({a: 'aa', b: 'bb'}, params);
+      chrome.test.succeed();
+    });
+  },
+
 ]);