Merge branch 'stable-2.15'

* stable-2.15:
  ChangeData#isReviewedBy: Guard against null current patch set
  Revert "GetCapabilities#CheckOne: Return json content type"
  FormatUtil: Correctly fix the Math#round() error flagged by error-prone
  Add a change deleted event/listener
  Fix broken link in documentation of receive.requireSignedPush

Change-Id: I57f595d1081f436187df4b73a37a4366cc66196b

gerrit-gwtui/src/main/java/com/google/gerrit/client/FormatUtil.java

@@ -126,25 +126,7 @@ public class FormatUtil {
     if (size == 0) {
       return Resources.C.notAvailable();
     }
-    int p = Math.abs(saturatedCast(delta * 100 / size));
-    return p + "%";
-  }
-
-  /**
-   * Returns the {@code int} nearest in value to {@code value}.
-   *
-   * @param value any {@code long} value
-   * @return the same value cast to {@code int} if it is in the range of the {@code int} type,
-   *     {@link Integer#MAX_VALUE} if it is too large, or {@link Integer#MIN_VALUE} if it is too
-   *     small
-   */
-  private static int saturatedCast(long value) {
-    if (value > Integer.MAX_VALUE) {
-      return Integer.MAX_VALUE;
-    }
-    if (value < Integer.MIN_VALUE) {
-      return Integer.MIN_VALUE;
-    }
-    return (int) value;
+    long percentage = Math.abs(Math.round(delta * 100.0 / size));
+    return percentage + "%";
   }
 }