TestBasesBlockedByDisabledWrapper focuses CheckboxBase, RadioBase,
SwitchBase and ToggleBase, flips their wrapper to Disabled and presses
Space: none changes its value, and each does without the flip. So
choiceTarget goes from Switch, Toggle and MultiSelect, and PopupMenu
Check drops its copy; TestChoiceDisabledWhileFocused and
TestDropdownMenuCheckDisabledThisFrameKeepsValue still pass.
ComboboxBase is different: TestComboboxBaseIgnoresDisabledWrapper shows
a focused one still takes typing under a disabled wrapper, so Combobox
keeps a copy, now inline as its only user.
ZacharyZhang-NY