Fix crash from dismissing after pause

Change-Id: Ic9f655bff5aec5678d975389bc1f391b8d608099
Fixes: 29977187
diff --git a/src/com/android/settings/SettingsPreferenceFragment.java b/src/com/android/settings/SettingsPreferenceFragment.java
index 4796a9e..7985ed9 100644
--- a/src/com/android/settings/SettingsPreferenceFragment.java
+++ b/src/com/android/settings/SettingsPreferenceFragment.java
@@ -519,7 +519,7 @@
         // To be able to dismiss dialog at that time, don't check
         // mDialogFragment.isVisible().
         if (mDialogFragment != null && mDialogFragment.getDialogId() == dialogId) {
-            mDialogFragment.dismiss();
+            mDialogFragment.dismissAllowingStateLoss();
         }
         mDialogFragment = null;
     }