Fix missing Javadoc

PiperOrigin-RevId: 346764371

library/ui/src/main/java/com/google/android/exoplayer2/ui/PlayerView.java

@@ -130,7 +130,8 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
  *         <li>Default: {@code never}
  *       </ul>
  *   <li><b>{@code resize_mode}</b> - Controls how video and album art is resized within the view.
- *       Valid values are {@code fit}, {@code fixed_width}, {@code fixed_height} and {@code fill}.
+ *       Valid values are {@code fit}, {@code fixed_width}, {@code fixed_height}, {@code fill} and
+ *       {@code zoom}.
  *       <ul>
  *         <li>Corresponding method: {@link #setResizeMode(int)}
  *         <li>Default: {@code fit}

library/ui/src/main/java/com/google/android/exoplayer2/ui/StyledPlayerView.java

@@ -132,7 +132,8 @@ import org.checkerframework.checker.nullness.qual.RequiresNonNull;
  *         <li>Default: {@code never}
  *       </ul>
  *   <li><b>{@code resize_mode}</b> - Controls how video and album art is resized within the view.
- *       Valid values are {@code fit}, {@code fixed_width}, {@code fixed_height} and {@code fill}.
+ *       Valid values are {@code fit}, {@code fixed_width}, {@code fixed_height}, {@code fill} and
+ *       {@code zoom}.
  *       <ul>
  *         <li>Corresponding method: {@link #setResizeMode(int)}
  *         <li>Default: {@code fit}