3 files changed, 6 insertions, 0 deletions
diff --git a/core/java/android/content/UndoManager.java b/core/java/android/content/UndoManager.java
index 1c2db47..e9ec5a4 100644
--- a/core/java/android/content/UndoManager.java
+++ b/core/java/android/content/UndoManager.java
@@ -50,6 +50,8 @@ import java.util.HashMap;
  * undo/redo them without needing to impact edits in other objects; while
  * within the larger document, all edits can be seen and the user must
  * undo/redo them as a single stream.</p>
+ *
+ * @hide
  */
 public class UndoManager {
     private final HashMap<String, UndoOwner> mOwners = new HashMap<String, UndoOwner>();
diff --git a/core/java/android/content/UndoOperation.java b/core/java/android/content/UndoOperation.java
index 8084b1f..1ff32d4 100644
--- a/core/java/android/content/UndoOperation.java
+++ b/core/java/android/content/UndoOperation.java
@@ -23,6 +23,8 @@ import android.os.Parcelable;
  * A single undoable operation.  You must subclass this to implement the state
  * and behavior for your operation.  Instances of this class are placed and
  * managed in an {@link UndoManager}.
+ *
+ * @hide
  */
 public abstract class UndoOperation<DATA> implements Parcelable {
     UndoOwner mOwner;
diff --git a/core/java/android/content/UndoOwner.java b/core/java/android/content/UndoOwner.java
index a279de6..d0cdc95 100644
--- a/core/java/android/content/UndoOwner.java
+++ b/core/java/android/content/UndoOwner.java
@@ -18,6 +18,8 @@ package android.content;
 
 /**
  * Representation of an owner of {@link UndoOperation} objects in an {@link UndoManager}.
+ *
+ * @hide
  */
 public class UndoOwner {
     final String mTag;