[NTP Snippets] Schedule periodic fetching

chrome/browser/ntp_snippets/ntp_snippets_service_factory.cc

Index: chrome/browser/ntp_snippets/ntp_snippets_service_factory.cc
diff --git a/chrome/browser/ntp_snippets/ntp_snippets_service_factory.cc b/chrome/browser/ntp_snippets/ntp_snippets_service_factory.cc
index d22c26f50b8dcf4c180e758732ba44f30c67f624..7230d0a28289db193e8d44ae1e118f4d302809ed 100644
--- a/chrome/browser/ntp_snippets/ntp_snippets_service_factory.cc
+++ b/chrome/browser/ntp_snippets/ntp_snippets_service_factory.cc
@@ -12,12 +12,17 @@
 #include "chrome/browser/signin/signin_manager_factory.h"
 #include "components/keyed_service/content/browser_context_dependency_manager.h"
 #include "components/ntp_snippets/ntp_snippets_fetcher.h"
+#include "components/ntp_snippets/ntp_snippets_scheduler.h"
 #include "components/ntp_snippets/ntp_snippets_service.h"
 #include "components/signin/core/browser/profile_oauth2_token_service.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/browser_thread.h"
 #include "net/url_request/url_request_context_getter.h"
 
+#if defined(OS_ANDROID)
+#include "chrome/browser/android/ntp_snippets_launcher.h"
+#endif  // OS_ANDROID
+
 using content::BrowserThread;
 
 // static
@@ -49,13 +54,18 @@ KeyedService* NTPSnippetsServiceFactory::BuildServiceInstanceFor(
   scoped_refptr<net::URLRequestContextGetter> request_context =
       context->GetRequestContext();
 
+  ntp_snippets::NTPSnippetsScheduler* scheduler = nullptr;
+#if defined(OS_ANDROID)
+  scheduler = NTPSnippetsLauncher::Get();
+#endif  // OS_ANDROID
+
   scoped_refptr<base::SequencedTaskRunner> task_runner =
       BrowserThread::GetBlockingPool()
           ->GetSequencedTaskRunnerWithShutdownBehavior(
               base::SequencedWorkerPool::GetSequenceToken(),
               base::SequencedWorkerPool::CONTINUE_ON_SHUTDOWN);
   return new ntp_snippets::NTPSnippetsService(
-      task_runner, g_browser_process->GetApplicationLocale(),
+      task_runner, g_browser_process->GetApplicationLocale(), scheduler,
       make_scoped_ptr(new ntp_snippets::NTPSnippetsFetcher(
           task_runner, signin_manager, token_service, request_context.get(),
           profile->GetPath())));