27760 Do not call CoreWindow::Visible from raster thread (cla: yes, platform-windows, needs tests)

27863 Windows: Add multi-touch support (cla: yes, waiting for tree to go green, platform-windows)

27921 Windows keyboard integration tests and fix a number of issues (cla: yes, platform-windows)

27922 [UWP] Remove 1px offset to make root widget fully shown (cla: yes, waiting for tree to go green, platform-windows)

28013 Fully inplement TaskRunner for UWP (flutter/flutter#70890) (cla: yes, waiting for tree to go green, platform-windows, needs tests)

28047 Fix dead key crashes on Win32 (cla: yes, platform-windows)