diff --git a/core/java/com/android/internal/util/StateMachine.java b/core/java/com/android/internal/util/StateMachine.java
index 916f19d53f675..447292c9f3575 100644
--- a/core/java/com/android/internal/util/StateMachine.java
+++ b/core/java/com/android/internal/util/StateMachine.java
@@ -29,6 +29,7 @@ import java.io.StringWriter;
 import java.util.ArrayList;
 import java.util.Calendar;
 import java.util.Collection;
+import java.util.Iterator;
 import java.util.HashMap;
 import java.util.Vector;
 
@@ -1863,6 +1864,20 @@ public class StateMachine {
         smh.removeMessages(what);
     }
 
+    /**
+     * Removes a message from the deferred messages queue.
+     */
+    protected final void removeDeferredMessages(int what) {
+        SmHandler smh = mSmHandler;
+        if (smh == null) return;
+
+        Iterator<Message> iterator = smh.mDeferredMessages.iterator();
+        while (iterator.hasNext()) {
+            Message msg = iterator.next();
+            if (msg.what == what) iterator.remove();
+        }
+    }
+
     /**
      * Validate that the message was sent by
      * {@link StateMachine#quit} or {@link StateMachine#quitNow}.