forked from firka/flutter
* Use AXFragmentRootWin for MSAA functionality. Some unused code remains to be removed. Merge MSAA to AXFragmentRootWin * Removing unused code * Remove unused files * Flip macro * Formatting * Licenses * Make reference * Disable copy constructor/assignment * Unused import * Formatting * Relocate alert logic * Remove comment and unused mock * Fix unit test * Idempotency * Formatting * PR feedback * Doc comments * Undo string change for now * Couple fragment root and alert node * Formatting * Add comments * Pointer to reference * Typo fix