Make VariationsService simulate received seeds.

chrome/browser/metrics/metrics_services_manager.cc

 // Copyright 2014 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/metrics/metrics_services_manager.h"
 
 #include "chrome/browser/metrics/metrics_service.h"
 #include "chrome/browser/metrics/metrics_state_manager.h"
 #include "chrome/browser/metrics/variations/variations_service.h"
 #include "components/rappor/rappor_service.h"
@@ skipping 17 matching lines @@
   DCHECK(thread_checker_.CalledOnValidThread());
   if (!rappor_service_)
     rappor_service_.reset(new rappor::RapporService);
   return rappor_service_.get();
 }
 
 chrome_variations::VariationsService*
 MetricsServicesManager::GetVariationsService() {
   DCHECK(thread_checker_.CalledOnValidThread());
   if (!variations_service_) {
-    variations_service_.reset(
-        chrome_variations::VariationsService::Create(local_state_));
+    variations_service_ =
+        chrome_variations::VariationsService::Create(local_state_,
+                                                     GetMetricsStateManager());
   }
   return variations_service_.get();
 }
 
 metrics::MetricsStateManager* MetricsServicesManager::GetMetricsStateManager() {
   DCHECK(thread_checker_.CalledOnValidThread());
   if (!metrics_state_manager_)
     metrics_state_manager_ = metrics::MetricsStateManager::Create(local_state_);
   return metrics_state_manager_.get();
 }