parent fragment and control the dialog.
Keep the dialog and the locale list after rotation
Bug: 279527362
Change-Id: I349fd9d0fea5b43a8bbb2a23fa60fc4c5436c5cf
Test: make RunSettingsRoboTests -j128 ROBOTEST_FILTER=LocaleListEditorTest
Test: atest LocaleDialogFragmentTest
In some cases, recycler view receives the cancel touch event,
it causes recycler view doesn't update the new locale list.
Currently, we also treat cancel event as a signal to update the locale.
According to the document, we can treat cancel event as a up
event, but not perform any action that you normally would.
It's ok in our case since we check if updated list is same as
last one in adapater.
Test: Drag and drop locale item, and make sure the language system
is updated.
Fix: 184051013
Fix: 184903189
Fix: 185000363
Change-Id: I06610080f34c5ed3562c74e1cdd955571cae55c0
