Re-Expose IpSecService API Surface

Note, This reverts commit faf8a9191762444f659164ce633bdfec1ab8de62.

Bug: 64800246
Test: compilation
Change-Id: I709d4c476647cfe9f6b982fc373f8d76018b3922
diff --git a/core/java/android/net/IpSecAlgorithm.java b/core/java/android/net/IpSecAlgorithm.java
index 7e956bf..ead406c 100644
--- a/core/java/android/net/IpSecAlgorithm.java
+++ b/core/java/android/net/IpSecAlgorithm.java
@@ -28,8 +28,6 @@
 /**
  * IpSecAlgorithm specifies a single algorithm that can be applied to an IpSec Transform. Refer to
  * RFC 4301.
- *
- * @hide
  */
 public final class IpSecAlgorithm implements Parcelable {
 
diff --git a/core/java/android/net/IpSecManager.java b/core/java/android/net/IpSecManager.java
index 00cacbc..d7908c8 100644
--- a/core/java/android/net/IpSecManager.java
+++ b/core/java/android/net/IpSecManager.java
@@ -38,7 +38,9 @@
  * This class contains methods for managing IPsec sessions, which will perform kernel-space
  * encryption and decryption of socket or Network traffic.
  *
- * @hide
+ * <p>An IpSecManager may be obtained by calling {@link
+ * android.content.Context#getSystemService(String) Context#getSystemService(String)} with {@link
+ * android.content.Context#IPSEC_SERVICE Context#IPSEC_SERVICE}
  */
 @SystemService(Context.IPSEC_SERVICE)
 public final class IpSecManager {
diff --git a/core/java/android/net/IpSecTransform.java b/core/java/android/net/IpSecTransform.java
index cfbac58..62fd65b 100644
--- a/core/java/android/net/IpSecTransform.java
+++ b/core/java/android/net/IpSecTransform.java
@@ -26,9 +26,12 @@
 import android.os.RemoteException;
 import android.os.ServiceManager;
 import android.util.Log;
+
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.Preconditions;
+
 import dalvik.system.CloseGuard;
+
 import java.io.IOException;
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -43,8 +46,6 @@
  *
  * <p>An IpSecTransform may either represent a tunnel mode transform that operates on a wide array
  * of traffic or may represent a transport mode transform operating on a Socket or Sockets.
- *
- * @hide
  */
 public final class IpSecTransform implements AutoCloseable {
     private static final String TAG = "IpSecTransform";