Hide NsdServiceInfo additions for KKWT DO NOT MERGE

Hide NsdServiceInfo additions for KKWT.
Bug: 14116162

Change-Id: I98755a2524168be5e833a634192fd49ff3c32346

core/java/android/net/nsd/NsdServiceInfo.java

@@ -141,6 +141,7 @@ public final class NsdServiceInfo implements Parcelable {
      * <p> Keys should be short, ideally no more than 9 characters, and unique per instance of
      * {@link NsdServiceInfo}.  Calling {@link #setAttribute} twice with the same key will overwrite
      * first value.
+     * @hide
      */
     public void setAttribute(String key, String value) {
         try {
@@ -150,7 +151,10 @@ public final class NsdServiceInfo implements Parcelable {
         }
     }
 
-    /** Remove an attribute by key */
+    /**
+     * Remove an attribute by key
+     * @hide
+     */
     public void removeAttribute(String key) {
         mTxtRecord.remove(key);
     }
@@ -160,6 +164,7 @@ public final class NsdServiceInfo implements Parcelable {
      *
      * <p> The returned map is unmodifiable; changes must be made through {@link #setAttribute} and
      * {@link #removeAttribute}.
+     * @hide
      */
     public Map<String, byte[]> getAttributes() {
         return Collections.unmodifiableMap(mTxtRecord);