[Content suggestions] Implement fetching publishers' favicons

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 <utility>
 #include <vector>
 
@@ skipping 136 matching lines @@
   void CreateContentSuggestionsService(
       ContentSuggestionsService::State enabled) {
     ASSERT_FALSE(service_);
 
     // TODO(jkrcal): Replace by a mock.
     auto user_classifier = base::MakeUnique<UserClassifier>(
         pref_service_.get(), base::MakeUnique<base::DefaultClock>());
 
     service_ = base::MakeUnique<ContentSuggestionsService>(
         enabled, /*signin_manager=*/nullptr, /*history_service=*/nullptr,
-        pref_service_.get(), std::move(category_ranker_),
-        std::move(user_classifier), /*scheduler=*/nullptr);
+        /*large_icon_service=*/nullptr, pref_service_.get(),
+        std::move(category_ranker_), std::move(user_classifier),
+        /*scheduler=*/nullptr);
   }
 
   void ResetService() {
     service_->Shutdown();
     service_.reset();
     CreateContentSuggestionsService(ContentSuggestionsService::State::ENABLED);
   }
 
   ContentSuggestionsService* service() { return service_.get(); }
 
@@ skipping 638 matching lines @@
   Category category = Category::FromKnownCategory(KnownCategories::BOOKMARKS);
   MockContentSuggestionsProvider* provider =
       MakeRegisteredMockProvider(category);
   provider->FireCategoryStatusChangedWithCurrentStatus(category);
 
   EXPECT_CALL(*raw_mock_ranker, OnCategoryDismissed(category));
   service()->DismissCategory(category);
 }
 
 }  // namespace ntp_snippets