Show the touch explore enable dialog for the current user.

1. We are showing a warning dialog if the user enables an accessibility
   service that requests explore by touch. This dialog was shown only
   for the owner but should be shown for the current user.

bug:7304437

Change-Id: I692b5112df16405e6d2e4890aafbfde79981f973

Author: sganov

services/java/com/android/server/accessibility/AccessibilityManagerService.java

@@ -1123,7 +1123,9 @@ public void onClick(DialogInterface dialog, int which) {
                         R.string.enable_explore_by_touch_warning_message, label))
                 .create();
             mEnableTouchExplorationDialog.getWindow().setType(
-                    WindowManager.LayoutParams.TYPE_INPUT_METHOD_DIALOG);
+                    WindowManager.LayoutParams.TYPE_SYSTEM_ALERT);
+            mEnableTouchExplorationDialog.getWindow().getAttributes().privateFlags
+                    |= WindowManager.LayoutParams.PRIVATE_FLAG_SHOW_FOR_ALL_USERS;
             mEnableTouchExplorationDialog.setCanceledOnTouchOutside(true);
             mEnableTouchExplorationDialog.show();
         }