Add new method to preference controller base for dynamic index.

- Add updateDynamicRawDataToIndex method.
- Implement preference controller index in BaseSearchIndexProvider.

Fixes: 144545478
Test: make RunSettingsGoogleRoboTests -j
      make RunSettingsRoboTests ROBOTEST_FILTER=
      com.android.settings.search.BaseSearchIndexProviderTest
Change-Id: Ibb11002227b280102b45d7c0610eae48ecf4c0f3

src/com/android/settings/core/BasePreferenceController.java

@@ -274,6 +274,14 @@ public abstract class BasePreferenceController extends AbstractPreferenceControl
     public void updateRawDataToIndex(List<SearchIndexableRaw> rawData) {
     }
 
+    /**
+     * Updates dynamic raw data for search provider.
+     *
+     * Called by SearchIndexProvider#getDynamicRawDataToIndex
+     */
+    public void updateDynamicRawDataToIndex(List<SearchIndexableRaw> rawData) {
+    }
+
     /**
      * Set {@link UiBlockListener}
      *
@@ -308,4 +316,4 @@ public abstract class BasePreferenceController extends AbstractPreferenceControl
      */
     public interface UiBlocker {
     }
-}
+}

src/com/android/settings/core/PreferenceControllerMixin.java

@@ -18,8 +18,8 @@ package com.android.settings.core;
 import android.text.TextUtils;
 import android.util.Log;
 
-import com.android.settingslib.search.SearchIndexableRaw;
 import com.android.settingslib.core.AbstractPreferenceController;
+import com.android.settingslib.search.SearchIndexableRaw;
 
 import java.util.List;
 
@@ -62,4 +62,12 @@ public interface PreferenceControllerMixin {
      */
     default void updateRawDataToIndex(List<SearchIndexableRaw> rawData) {
     }
+
+    /**
+     * Updates dynamic raw data for search provider.
+     *
+     * Called by SearchIndexProvider#getDynamicRawDataToIndex
+     */
+    default void updateDynamicRawDataToIndex(List<SearchIndexableRaw> rawData) {
+    }
 }