Filter and display top 3 suggestions for exclusive type

Change-Id: Ief4c2f02fcf1064dac3659502bd7511b09a2a7df
Fix: 37947647
Test: make RunSettingsRoboTests

src/com/android/settings/dashboard/suggestions/SuggestionFeatureProvider.java

@@ -18,8 +18,8 @@ package com.android.settings.dashboard.suggestions;
 
 import android.content.Context;
 
-import com.android.settingslib.SuggestionParser;
 import com.android.settingslib.drawer.Tile;
+import com.android.settingslib.suggestions.SuggestionParser;
 
 import java.util.List;
 
@@ -45,6 +45,11 @@ public interface SuggestionFeatureProvider {
      */
     void rankSuggestions(final List<Tile> suggestions, List<String> suggestionIds);
 
+    /**
+     * Only keep top few suggestions from exclusive suggestions.
+     */
+    void filterExclusiveSuggestions(List<Tile> suggestions);
+
     /**
      * Dismisses a suggestion.
      */