Trigger the Snippets Scheduler when Resuming Activities

components/ntp_snippets/remote/scheduling_remote_suggestions_provider.h

 // 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.
 
 #ifndef COMPONENTS_NTP_SNIPPETS_REMOTE_SCHEDULING_REMOTE_SUGGESTIONS_PROVIDER_H_
 #define COMPONENTS_NTP_SNIPPETS_REMOTE_SCHEDULING_REMOTE_SUGGESTIONS_PROVIDER_H_
 
 #include <memory>
 #include <set>
 #include <string>
@@ skipping 52 matching lines @@
       PrefService* pref_service,
       std::unique_ptr<base::Clock> clock);
 
   ~SchedulingRemoteSuggestionsProvider() override;
 
   static void RegisterProfilePrefs(PrefRegistrySimple* registry);
 
   // RemoteSuggestionsScheduler implementation.
   void RescheduleFetching() override;
   void OnPersistentSchedulerWakeUp() override;
-  void OnBrowserStartup() override;
+  void OnBrowserForegrounded() override;
+  void OnBrowserColdStart() override;
   void OnNTPOpened() override;
 
   // RemoteSuggestionsProvider implementation.
   void SetProviderStatusCallback(
       std::unique_ptr<ProviderStatusCallback> callback) override;
   void RefetchInTheBackground(
       std::unique_ptr<FetchStatusCallback> callback) override;
   const NTPSnippetsFetcher* snippets_fetcher_for_testing_and_debugging()
       const override;
 
@@ skipping 87 matching lines @@
 
   PrefService* pref_service_;
   std::unique_ptr<base::Clock> clock_;
 
   DISALLOW_COPY_AND_ASSIGN(SchedulingRemoteSuggestionsProvider);
 };
 
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_REMOTE_SCHEDULING_REMOTE_SUGGESTIONS_PROVIDER_H_