[NTP Snippets] Hook up background fetching scheduler to UserClassifier

chrome/browser/ntp_snippets/content_suggestions_service_factory.cc

 // Copyright 2016 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/ntp_snippets/content_suggestions_service_factory.h"
 
 #include <utility>
 
 #include "base/feature_list.h"
 #include "base/files/file_path.h"
@@ skipping 132 matching lines @@
       profile->GetPath().Append(ntp_snippets::kDatabaseFolder));
   scoped_refptr<base::SequencedTaskRunner> task_runner =
       BrowserThread::GetBlockingPool()
           ->GetSequencedTaskRunnerWithShutdownBehavior(
               base::SequencedWorkerPool::GetSequenceToken(),
               base::SequencedWorkerPool::CONTINUE_ON_SHUTDOWN);
   bool is_stable_channel =
       chrome::GetChannel() == version_info::Channel::STABLE;
   auto provider = base::MakeUnique<NTPSnippetsService>(
       service, service->category_factory(), pref_service, suggestions_service,
-      g_browser_process->GetApplicationLocale(), scheduler,
+      g_browser_process->GetApplicationLocale(), service->user_classifier(),
+      scheduler,
       base::MakeUnique<NTPSnippetsFetcher>(
           signin_manager, token_service, request_context, pref_service,
           category_factory, base::Bind(&safe_json::SafeJsonParser::Parse),
           is_stable_channel ? google_apis::GetAPIKey()
                             : google_apis::GetNonStableAPIKey()),
       base::MakeUnique<ImageFetcherImpl>(base::MakeUnique<ImageDecoderImpl>(),
                                          request_context.get()),
       base::MakeUnique<ImageDecoderImpl>(),
       base::MakeUnique<NTPSnippetsDatabase>(database_dir, task_runner),
       base::MakeUnique<NTPSnippetsStatusService>(signin_manager, pref_service));
@@ skipping 120 matching lines @@
   }
 
   if (base::FeatureList::IsEnabled(
           ntp_snippets::kForeignSessionsSuggestionsFeature)) {
     RegisterForeignSessionsProvider(sync_service, service, category_factory,
                                     pref_service);
   }
 
   return service;
 }