Add per-section clearing and dismissed suggestions to snippets-internals

components/ntp_snippets/content_suggestions_service_unittest.cc

 // 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.
 
 #include "components/ntp_snippets/content_suggestions_service.h"
 
 #include <memory>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 62 matching lines @@
 
   void FireSuggestionsChanged(Category category, std::vector<int> numbers) {
     observer()->OnNewSuggestions(this, category, CreateSuggestions(numbers));
   }
 
   void FireCategoryStatusChanged(Category category, CategoryStatus new_status) {
     statuses_[category.id()] = new_status;
     observer()->OnCategoryStatusChanged(this, category, new_status);
   }
 
-  MOCK_METHOD0(ClearCachedSuggestionsForDebugging, void());
-  MOCK_METHOD0(ClearDismissedSuggestionsForDebugging, void());
+  MOCK_METHOD1(ClearCachedSuggestionsForDebugging, void(Category category));
+  MOCK_METHOD1(GetDismissedSuggestionsForDebugging,
+               std::vector<ContentSuggestion>(Category category));
+  MOCK_METHOD1(ClearDismissedSuggestionsForDebugging, void(Category category));
   MOCK_METHOD1(DismissSuggestion, void(const std::string& suggestion_id));
   MOCK_METHOD2(FetchSuggestionImage,
                void(const std::string& suggestion_id,
                     const ImageFetchedCallback& callback));
 
  private:
   std::vector<Category> provided_categories_;
   std::map<int, CategoryStatus> statuses_;
 };
 
@@ skipping 255 matching lines @@
   Mock::VerifyAndClearExpectations(&observer);
 
   // Shutdown the service
   EXPECT_CALL(observer, ContentSuggestionsServiceShutdown());
   service()->Shutdown();
   service()->RemoveObserver(&observer);
   // The service will receive two Shutdown() calls.
 }
 
 }  // namespace ntp_snippets