28734 [fuchsia] Fix missing function in V2 dart runner. (cla: yes, platform-fuchsia, needs tests)

28735 Roll Dart SDK from 61f539dc7b50 to a0243abd09e3 (1 revision) (cla: yes, waiting for tree to go green)

28736 Make benchmark parsing pre-submit non-bringup (cla: yes, waiting for tree to go green)

28737 Roll Skia from 498bfa4a8590 to f62934b85a49 (2 revisions) (cla: yes, waiting for tree to go green)

28738 Update build.gradle (cla: yes)