A new attribute which can show the dynamic summary

For now, slice view shows screen title by default,
but it isn't approprate for some simple cases.
ie, device model, phone number, android version etc.

So, We create a new attribue which let BasePreferenceController
be more flxible. User can choose what they want to show
in summary text.

Fixes: 74900516
Test: make RunSettingsRoboTests

Change-Id: I2788c6edfaf8e656170a507607f22513841a3e0a

src/com/android/settings/slices/SlicesDatabaseHelper.java

@@ -36,7 +36,7 @@ public class SlicesDatabaseHelper extends SQLiteOpenHelper {
     private static final String DATABASE_NAME = "slices_index.db";
     private static final String SHARED_PREFS_TAG = "slices_shared_prefs";
 
-    private static final int DATABASE_VERSION = 2;
+    private static final int DATABASE_VERSION = 3;
 
     public interface Tables {
         String TABLE_SLICES_INDEX = "slices_index";
@@ -93,6 +93,12 @@ public class SlicesDatabaseHelper extends SQLiteOpenHelper {
          * {@link SliceData.SliceType} representing the inline type of the result.
          */
         String SLICE_TYPE = "slice_type";
+
+        /**
+         * Boolean flag, {@code true} when the slice object prefers using the dynamic summary from
+         * preference controller.
+         */
+        String ALLOW_DYNAMIC_SUMMARY_IN_SLICE = "allow_dynamic_summary_in_slice";
     }
 
     private static final String CREATE_SLICES_TABLE =
@@ -117,6 +123,8 @@ public class SlicesDatabaseHelper extends SQLiteOpenHelper {
                     IndexColumns.PLATFORM_SLICE +
                     ", " +
                     IndexColumns.SLICE_TYPE +
+                    ", " +
+                    IndexColumns.ALLOW_DYNAMIC_SUMMARY_IN_SLICE +
                     ");";
 
     private final Context mContext;