Messaging: Use ActivityResultContracts for media and contacts

Instead of handling showing and picking the media ourselves,
use existing AcitivityResultContracts to pick images, videos
or contacts

Change-Id: I20079ad94882cc6bbfeae8d57ca0e4aa30612c01

src/com/android/messaging/util/UriUtil.java

@@ -27,7 +27,6 @@ import androidx.annotation.NonNull;
 import android.text.TextUtils;
 
 import com.android.messaging.Factory;
-import com.android.messaging.datamodel.GalleryBoundCursorLoader;
 import com.android.messaging.datamodel.MediaScratchFileProvider;
 import com.android.messaging.util.Assert.DoesNotRunOnMainThread;
 import com.google.common.io.ByteStreams;
@@ -136,18 +135,6 @@ public class UriUtil {
                 TextUtils.equals(MEDIA_STORE_URI_KLP, uriAuthority));
     }
 
-    /**
-     * Gets the content:// style URI for the given MediaStore row Id in the files table on the
-     * external volume.
-     *
-     * @param id the MediaStore row Id to get the URI for
-     * @return the URI to the files table on the external storage.
-     */
-    public static Uri getContentUriForMediaStoreId(final long id) {
-        return MediaStore.Files.getContentUri(
-                GalleryBoundCursorLoader.MEDIA_SCANNER_VOLUME_EXTERNAL, id);
-    }
-
     /**
      * Gets the size in bytes for the content uri. Currently we only support content in the
      * scratch space.