Add keywords to Slices

Attach the keywords used for Settings search to Slices.
Their primary use is helping match synonyms for presenters
which display slices without explicit Uri requests, like a launcher.

This changes:
- Updates database scheme
- Adds to SliceData object
- Grab keywords in the SliceDataConverter
- Set keywords on all slices

Test: robotests
Change-Id: I16c40d2380ffddaf0a87fb1b9cd58e95573b308f
Fixes: 78306195

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 = 1;
+    private static final int DATABASE_VERSION = 2;
 
     public interface Tables {
         String TABLE_SLICES_INDEX = "slices_index";
@@ -63,6 +63,11 @@ public class SlicesDatabaseHelper extends SQLiteOpenHelper {
          */
         String SCREENTITLE = "screentitle";
 
+        /**
+         * String with a comma separated list of keywords relating to the Slice.
+         */
+        String KEYWORDS = "keywords";
+
         /**
          * Resource ID for the icon of the setting. Should be 0 for no icon.
          */
@@ -101,6 +106,8 @@ public class SlicesDatabaseHelper extends SQLiteOpenHelper {
                     ", " +
                     IndexColumns.SCREENTITLE +
                     ", " +
+                    IndexColumns.KEYWORDS +
+                    ", " +
                     IndexColumns.ICON_RESOURCE +
                     ", " +
                     IndexColumns.FRAGMENT +
@@ -109,7 +116,7 @@ public class SlicesDatabaseHelper extends SQLiteOpenHelper {
                     ", " +
                     IndexColumns.PLATFORM_SLICE +
                     ", " +
-                    IndexColumns.SLICE_TYPE+
+                    IndexColumns.SLICE_TYPE +
                     ");";
 
     private final Context mContext;