Merge "Set device credential's Window flag to be SECURE." into nyc-dev

am: e69c4dcb8f

Change-Id: I30a0d2578343a7635da63a52cfc81f1427aab23b

src/com/android/settings/ConfirmDeviceCredentialBaseActivity.java

@@ -45,6 +45,7 @@ public abstract class ConfirmDeviceCredentialBaseActivity extends SettingsActivi
             mDark = true;
         }
         super.onCreate(savedState);
+        getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
         mIsKeyguardLocked = savedState == null
                 ? getSystemService(KeyguardManager.class).isKeyguardLocked()
                 : savedState.getBoolean(STATE_IS_KEYGUARD_LOCKED, false);