Announce changes to the keyguard security message for accessibility.

Bug: 7352702
Change-Id: I790d7be08b222ae3cb76459064802f587c3e6f30
diff --git a/policy/src/com/android/internal/policy/impl/keyguard/KeyguardStatusViewManager.java b/policy/src/com/android/internal/policy/impl/keyguard/KeyguardStatusViewManager.java
index 9615e71..5b85064 100644
--- a/policy/src/com/android/internal/policy/impl/keyguard/KeyguardStatusViewManager.java
+++ b/policy/src/com/android/internal/policy/impl/keyguard/KeyguardStatusViewManager.java
@@ -221,6 +221,7 @@
             mHandler.removeCallbacks(mClearSecurityMessageRunnable);
             mHandler.postDelayed(mClearSecurityMessageRunnable, SECURITY_MESSAGE_DURATION);
         }
+        mSecurityMessage.announceForAccessibility(mSecurityMessage.getText());
     }
 
     /**