25880 Roll Skia from 5c95bcb48b9b to c779d432f336 (1 revision) (cla: yes, waiting for tree to go green)

25881 Roll Skia from c779d432f336 to ff8b52df55ff (2 revisions) (cla: yes, waiting for tree to go green)

25884 Implement smooth resizing for Linux (cla: yes, waiting for tree to go green, platform-linux)

25885 Roll Dart SDK from 3cc6cdab8eaf to b8f4018535fa (2 revisions) (cla: yes, waiting for tree to go green)

25886 Roll Skia from ff8b52df55ff to ec79349bad50 (1 revision) (cla: yes, waiting for tree to go green)