Remove suggestions notified as invalid

ios/chrome/browser/content_suggestions/content_suggestions_service_bridge_observer.h

 // Copyright 2017 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 IOS_CHROME_BROWSER_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_SERVICE_BRIDGE_OBSERVER_H_
 #define IOS_CHROME_BROWSER_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_SERVICE_BRIDGE_OBSERVER_H_
 
 #include "components/ntp_snippets/content_suggestions_service.h"
 
 // Observes ContentSuggestionsService events from Objective-C. To use as a
 // ntp_snippets::ContentSuggestionsService::Observer, wrap in a
 // ContentSuggestionsServiceBridge.
 @protocol ContentSuggestionsServiceObserver
 
 // Invoked by ntp_snippets::ContentSuggestionsService::OnNewSuggestions.
 - (void)contentSuggestionsService:
             (ntp_snippets::ContentSuggestionsService*)suggestionsService
          newSuggestionsInCategory:(ntp_snippets::Category)category;
 
 // Invoked by ntp_snippets::ContentSuggestionsService::OnCategoryStatusChanged.
 - (void)contentSuggestionsService:
             (ntp_snippets::ContentSuggestionsService*)suggestionsService
                          category:(ntp_snippets::Category)category
                   statusChangedTo:(ntp_snippets::CategoryStatus)status;
 
 // Invoked by ntp_snippets::ContentSuggestionsService::OnSuggestionInvalidated.
 - (void)contentSuggestionsService:
             (ntp_snippets::ContentSuggestionsService*)suggestionsService
-            SuggestionInvalidated:
+            suggestionInvalidated:
                 (const ntp_snippets::ContentSuggestion::ID&)suggestion_id;
 
 // Invoked by ntp_snippets::ContentSuggestionsService::OnFullRefreshRequired.
 - (void)contentSuggestionsServiceFullRefreshRequired:
     (ntp_snippets::ContentSuggestionsService*)suggestionsService;
 
 // Invoked by
 // ntp_snippets::ContentSuggestionsService::ContentSuggestionsServiceShutdown.
 - (void)contentSuggestionsServiceShutdown:
     (ntp_snippets::ContentSuggestionsService*)suggestionsService;
@@ skipping 20 matching lines @@
   void OnFullRefreshRequired() override;
   void ContentSuggestionsServiceShutdown() override;
 
   __unsafe_unretained id<ContentSuggestionsServiceObserver> observer_;
   ntp_snippets::ContentSuggestionsService* service_;  // weak
 
   DISALLOW_COPY_AND_ASSIGN(ContentSuggestionsServiceBridge);
 };
 
 #endif  // IOS_CHROME_BROWSER_CONTENT_SUGGESTIONS_CONTENT_SUGGESTIONS_SERVICE_BRIDGE_OBSERVER_H_