Increase visibilities in SearchFragment and SearchResutlsAdapter for testing

Test: RunSettingsRoboTests
Bug: 36867802

Change-Id: I9102d02a5500330ce53e742ecd2084f0e714b830

src/com/android/settings/search/SearchFragment.java

@@ -100,7 +100,8 @@ public class SearchFragment extends InstrumentedFragment implements SearchView.O
     @VisibleForTesting
     SearchFeatureProvider mSearchFeatureProvider;
 
-    private SearchResultsAdapter mSearchAdapter;
+    @VisibleForTesting(otherwise = VisibleForTesting.PRIVATE)
+    SearchResultsAdapter mSearchAdapter;
 
     @VisibleForTesting
     RecyclerView mResultsRecyclerView;

src/com/android/settings/search/SearchResultsAdapter.java

@@ -384,7 +384,8 @@ public class SearchResultsAdapter extends RecyclerView.Adapter<SearchViewHolder>
         return mHandler;
     }
 
-    private void postSearchResults(List<SearchResult> newSearchResults, boolean detectMoves) {
+    @VisibleForTesting
+    public void postSearchResults(List<SearchResult> newSearchResults, boolean detectMoves) {
         final DiffUtil.DiffResult diffResult = DiffUtil.calculateDiff(
                 new SearchResultDiffCallback(mSearchResults, newSearchResults), detectMoves);
         mSearchResults.clear();