Do not close QS on security footer dialog

Show the dialog on top of QS. Make sure that QS is dismissed if dialog
launches another activity.

Test: manual
Fixes: 174038860
Change-Id: I86ce7fd1a6c7a411f53c024bc26e71b822911573

packages/SystemUI/src/com/android/systemui/qs/QSSecurityFooter.java

@@ -140,8 +140,6 @@ class QSSecurityFooter implements OnClickListener, DialogInterface.OnClickListen
     }
 
     public void showDeviceMonitoringDialog() {
-        mHost.collapsePanels();
-        // TODO: Delay dialog creation until after panels are collapsed.
         createDialog();
     }
 
@@ -276,6 +274,7 @@ class QSSecurityFooter implements OnClickListener, DialogInterface.OnClickListen
         if (which == DialogInterface.BUTTON_NEGATIVE) {
             final Intent intent = new Intent(Settings.ACTION_ENTERPRISE_PRIVACY_SETTINGS);
             mDialog.dismiss();
+            // This dismisses the shade on opening the activity
             mActivityStarter.postStartActivityDismissingKeyguard(intent, 0);
         }
     }
@@ -581,6 +580,7 @@ class QSSecurityFooter implements OnClickListener, DialogInterface.OnClickListen
         public void onClick(View widget) {
             final Intent intent = new Intent(Settings.ACTION_VPN_SETTINGS);
             mDialog.dismiss();
+            // This dismisses the shade on opening the activity
             mActivityStarter.postStartActivityDismissingKeyguard(intent, 0);
         }