Move Field Trial Utils from chrome/common/variations to components/variations/field_trial_util

tools/variations/unittest_data/expected_output.cc

 // Copyright 2015 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.
 
 // GENERATED FROM THE SCHEMA DEFINITION AND DESCRIPTION IN
-//   fieldtrial_testing_config_schema.json
+//   field_trial_testing_config_schema.json
 //   test_config.json
 // DO NOT EDIT.
 
 #include "test_output.h"
 
 
 const FieldTrialTestingExperiment array_kFieldTrialConfig_experiments_2[] = {
     {
       "ForcedGroup",
       NULL,
@@ skipping 107 matching lines @@
   {
     "TrialWithForcingFlag",
     array_kFieldTrialConfig_experiments_2,
     1,
   },
 };
 const FieldTrialTestingConfig kFieldTrialConfig = {
   array_kFieldTrialConfig_studies,
   4,
 };