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

chrome/browser/tracing/background_tracing_field_trial.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.
 
 #include "chrome/browser/tracing/background_tracing_field_trial.h"
 
 #include <string>
 #include <utility>
 
 #include "base/json/json_reader.h"
 #include "base/metrics/field_trial.h"
 #include "build/build_config.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/tracing/crash_service_uploader.h"
-#include "chrome/common/variations/variations_util.h"
 #include "components/variations/variations_associated_data.h"
 #include "content/public/browser/background_tracing_config.h"
 #include "content/public/browser/background_tracing_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/base/network_change_notifier.h"
 #include "url/gurl.h"
 
 namespace tracing {
 
 namespace {
@@ skipping 68 matching lines @@
       content::BackgroundTracingConfig::FromDict(dict);
   if (!config)
     return;
 
   content::BackgroundTracingManager::GetInstance()->SetActiveScenario(
       std::move(config), base::Bind(&UploadCallback, upload_url),
       content::BackgroundTracingManager::ANONYMIZE_DATA);
 }
 
 }  // namespace tracing