Move OnURLsDeleted from NTPSnippetsService to ContentSuggestionsService

components/ntp_snippets/content_suggestions_service_unittest.cc

Index: components/ntp_snippets/content_suggestions_service_unittest.cc
diff --git a/components/ntp_snippets/content_suggestions_service_unittest.cc b/components/ntp_snippets/content_suggestions_service_unittest.cc
index 842b097dd8e4bba8e9641b40e68f5d72f2a5061f..19c9c1a0c1550915f60d80f8d28aff21e83e0cf1 100644
--- a/components/ntp_snippets/content_suggestions_service_unittest.cc
+++ b/components/ntp_snippets/content_suggestions_service_unittest.cc
@@ -100,6 +100,8 @@ class MockProvider : public ContentSuggestionsProvider {
     observer()->OnSuggestionInvalidated(this, category, suggestion_id);
   }
 
+  MOCK_METHOD2(RemoveURLsFromHistory,
+               void(bool all_history, const std::vector<GURL>& deleted_urls));
   MOCK_METHOD3(ClearHistory,
                void(base::Time begin,
                     base::Time end,
@@ -205,7 +207,8 @@ class ContentSuggestionsServiceTest : public testing::Test {
   void CreateContentSuggestionsService(
       ContentSuggestionsService::State enabled) {
     ASSERT_FALSE(service_);
-    service_.reset(new ContentSuggestionsService(enabled));
+    service_.reset(
+        new ContentSuggestionsService(enabled, /*history_service=*/nullptr));
   }
 
   ContentSuggestionsService* service() { return service_.get(); }