[NTP Snippets] Don't notify about new suggestion when in a not-available state

components/ntp_snippets/remote/remote_suggestions_provider.h

 // 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.
 
 #ifndef COMPONENTS_NTP_SNIPPETS_REMOTE_REMOTE_SUGGESTIONS_PROVIDER_H_
 #define COMPONENTS_NTP_SNIPPETS_REMOTE_REMOTE_SUGGESTIONS_PROVIDER_H_
 
 #include <cstddef>
 #include <deque>
 #include <map>
@@ skipping 132 matching lines @@
   // Dismissed snippets, only for unit tests.
   const NTPSnippet::PtrVector& GetDismissedSnippetsForTesting(
       Category category) const {
     return category_contents_.find(category)->second.dismissed;
   }
 
  private:
   friend class RemoteSuggestionsProviderTest;
 
   FRIEND_TEST_ALL_PREFIXES(RemoteSuggestionsProviderTest,
+                           DontNotifyIfNotAvailable);
+  FRIEND_TEST_ALL_PREFIXES(RemoteSuggestionsProviderTest,
                            RemoveExpiredDismissedContent);
   FRIEND_TEST_ALL_PREFIXES(RemoteSuggestionsProviderTest,
                            RescheduleOnStateChange);
   FRIEND_TEST_ALL_PREFIXES(RemoteSuggestionsProviderTest, StatusChanges);
   FRIEND_TEST_ALL_PREFIXES(RemoteSuggestionsProviderTest,
                            SuggestionsFetchedOnSignInAndSignOut);
 
   // Possible state transitions:
   //       NOT_INITED --------+
   //       /       \          |
@@ skipping 229 matching lines @@
 
   // Request throttler for limiting requests to thumbnail images.
   RequestThrottler thumbnail_requests_throttler_;
 
   DISALLOW_COPY_AND_ASSIGN(RemoteSuggestionsProvider);
 };
 
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_REMOTE_REMOTE_SUGGESTIONS_PROVIDER_H_