Load suggestions through SettingsIntelligence.

- Add flag to switch between old/new implementation
- Add SuggestionLoader to load using Loader (instead of AsyncTask)
- Update DashboardAdapater/SuggestionAdapter to take List<Suggestion>
- Marked old getter/setters as @Deprecated and added comment
- Update tests to cover suggestionV2 adapter changes.

TODO:
- Handler for dismissing suggestion not set up yet.
- Suggestion data structure is incomplete (missing icon, remote view, etc)
- Need to extend Suggestion data strcture to support icon and
  remote view binding

Bug: 65065268
Test: robotests
Change-Id: I2378ef4c9edee972d5de93c3868068e2cde23f56

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

@@ -19,6 +19,7 @@ package com.android.settings.dashboard.suggestions;
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.service.settings.suggestions.Suggestion;
 import android.support.annotation.NonNull;
 
 import com.android.settingslib.drawer.Tile;
@@ -31,9 +32,16 @@ public interface SuggestionFeatureProvider {
 
     /**
      * Whether or not the whole suggestion feature is enabled.
+     * @deprecated in favor of {@link #isSuggestionV2Enabled(Context)}
      */
+    @Deprecated
     boolean isSuggestionEnabled(Context context);
 
+    /**
+     * Whether or not the suggestion v2 feature is enabled.
+     */
+    boolean isSuggestionV2Enabled(Context context);
+
     /**
      * Returns true if smart suggestion should be used instead of xml based SuggestionParser.
      */
@@ -52,7 +60,9 @@ public interface SuggestionFeatureProvider {
      *
      * @param suggestions   List of suggestion Tiles
      * @param suggestionIds List of suggestion ids corresponding to the suggestion tiles.
+     * @deprecated in favor of SettingsIntelligence
      */
+    @Deprecated
     void rankSuggestions(final List<Tile> suggestions, List<String> suggestionIds);
 
     /**
@@ -62,9 +72,17 @@ public interface SuggestionFeatureProvider {
 
     /**
      * Dismisses a suggestion.
+     *
+     * @deprecated in favor of {@link #dismissSuggestion(Context, Suggestion)}
      */
+    @Deprecated
     void dismissSuggestion(Context context, SuggestionParser parser, Tile suggestion);
 
+    /**
+     * Dismisses a suggestion.
+     */
+    void dismissSuggestion(Context context, Suggestion suggestion);
+
     /**
      * Returns an identifier for the suggestion
      */