Add shutdown notification and service refs to SyncServiceObserver.

components/suggestions/suggestions_service_impl_unittest.cc

 // Copyright 2014 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/suggestions/suggestions_service_impl.h"
 
 #include <stdint.h>
 
 #include <memory>
 #include <utility>
@@ skipping 380 matching lines @@
       CreateSuggestionsServiceWithMocks());
   ASSERT_TRUE(suggestions_service != nullptr);
   EXPECT_CALL(*mock_sync_service_, CanSyncStart())
       .WillRepeatedly(Return(false));
 
   auto subscription = suggestions_service->AddCallback(base::Bind(
       &SuggestionsServiceTest::CheckCallback, base::Unretained(this)));
 
   // Tell SuggestionsService that the sync state changed. The cache should be
   // cleared and empty data returned to the callback.
-  suggestions_service->OnStateChanged();
+  suggestions_service->OnStateChanged(mock_sync_service_.get());
 
   // Ensure that CheckCallback ran once with empty data.
   EXPECT_EQ(1, suggestions_data_callback_count_);
   EXPECT_EQ(1, suggestions_empty_data_count_);
 
   // Try to fetch suggestions. Since sync is not active, no network request
   // should be sent.
   suggestions_service->FetchSuggestionsData();
 
   // Let any network request run.
@@ skipping 345 matching lines @@
   EXPECT_CALL(*mock_thumbnail_manager_, GetImageForURL(test_url, _));
   suggestions_service->GetPageThumbnail(test_url, dummy_callback);
 
   EXPECT_CALL(*mock_thumbnail_manager_, AddImageURL(test_url, thumbnail_url));
   EXPECT_CALL(*mock_thumbnail_manager_, GetImageForURL(test_url, _));
   suggestions_service->GetPageThumbnailWithURL(test_url, thumbnail_url,
                                                dummy_callback);
 }
 
 }  // namespace suggestions