Hide NsdServiceInfo additions for KKWT DO NOT MERGE

Hide NsdServiceInfo additions for KKWT.
Bug: 14116162

Change-Id: I98755a2524168be5e833a634192fd49ff3c32346

api/current.txt

@@ -14418,13 +14418,10 @@ package android.net.nsd {
   public final class NsdServiceInfo implements android.os.Parcelable {
     ctor public NsdServiceInfo();
     method public int describeContents();
-    method public java.util.Map<java.lang.String, byte[]> getAttributes();
     method public java.net.InetAddress getHost();
     method public int getPort();
     method public java.lang.String getServiceName();
     method public java.lang.String getServiceType();
-    method public void removeAttribute(java.lang.String);
-    method public void setAttribute(java.lang.String, java.lang.String);
     method public void setHost(java.net.InetAddress);
     method public void setPort(int);
     method public void setServiceName(java.lang.String);

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);