📰 Let the backend trigger sign in related refreshes

components/ntp_snippets/remote/remote_suggestions_provider.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 "components/ntp_snippets/remote/remote_suggestions_provider.h"
 
 #include <algorithm>
 #include <iterator>
 #include <utility>
 
@@ skipping 472 matching lines @@
     return;
 
   database_->DeleteSnippets(GetSnippetIDVector(content->snippets));
   database_->DeleteImages(GetSnippetIDVector(content->snippets));
   content->snippets.clear();
 
   if (IsCategoryStatusAvailable(content->status))
     NotifyNewSuggestions(category, *content);
 }
 
+void RemoteSuggestionsProvider::OnSignInStateChanged() {
+  // Make sure the status service is registered and we already initialised its
+  // start state.
+  if (!initialized()) {
+    return;
+  }
+
+  snippets_status_service_->OnSignInStateChanged();
+}
+
 void RemoteSuggestionsProvider::GetDismissedSuggestionsForDebugging(
     Category category,
     const DismissedSuggestionsCallback& callback) {
   auto content_it = category_contents_.find(category);
   DCHECK(content_it != category_contents_.end());
   callback.Run(
       ConvertToContentSuggestions(category, content_it->second.dismissed));
 }
 
 void RemoteSuggestionsProvider::ClearDismissedSuggestionsForDebugging(
@@ skipping 802 matching lines @@
 RemoteSuggestionsProvider::CategoryContent::CategoryContent(CategoryContent&&) =
     default;
 
 RemoteSuggestionsProvider::CategoryContent::~CategoryContent() = default;
 
 RemoteSuggestionsProvider::CategoryContent&
 RemoteSuggestionsProvider::CategoryContent::operator=(CategoryContent&&) =
     default;
 
 }  // namespace ntp_snippets