HBASE-12625 Deprecate certain methods in classes annotated with InterfaceAudience.Public in branch-1

hbase-common/src/main/java/org/apache/hadoop/hbase/CellUtil.java

@@ -497,6 +497,16 @@ public final class CellUtil {
     return t == Type.DeleteColumn.getCode() || t == Type.DeleteFamily.getCode();
   }
 
+  /**
+   * @param cell
+   * @return Estimate of the <code>cell</code> size in bytes.
+   * @deprecated please use estimatedSerializedSizeOf(Cell)
+   */
+  @Deprecated
+  public static int estimatedSizeOf(final Cell cell) {
+    return estimatedSerializedSizeOf(cell);
+  }
+
   /**
    * @param cell
    * @return Estimate of the <code>cell</code> size in bytes.