Implement runtime account update notifications.

Test: manual, cts.
Change-Id: Iaf9fe4814c3d3c2ca2dca0a5bfa0f997e060bfeb
diff --git a/core/res/AndroidManifest.xml b/core/res/AndroidManifest.xml
index 58e4051..37465ae 100644
--- a/core/res/AndroidManifest.xml
+++ b/core/res/AndroidManifest.xml
@@ -486,6 +486,7 @@
     <protected-broadcast android:name="android.intent.action.ACTION_RADIO_OFF" />
 
     <protected-broadcast android:name="android.accounts.LOGIN_ACCOUNTS_CHANGED" />
+    <protected-broadcast android:name="android.accounts.action.VISIBLE_ACCOUNTS_CHANGED" />
     <protected-broadcast android:name="com.android.sync.SYNC_CONN_STATUS_CHANGED" />
 
     <protected-broadcast android:name="com.android.phone.SIP_INCOMING_CALL" />