48449 format operator== according to flutter style guide (a: accessibility, a: tests, cla: yes, d: examples, f: cupertino, f: material design, framework, team, team: gallery, tool, waiting for tree to go green)

48451 Document reasoning for why CustomMultiChildLayout size can’t depend on children and how to do it (cla: yes, d: api docs, documentation, framework, waiting for tree to go green)

48453 MouseTracker no longer requires annotations attached (a: desktop, cla: yes, framework, waiting for tree to go green)

48457 Fixing PageScrollPhysics to get along with NestedScrollView (cla: yes, f: scrolling, framework, severe: crash, waiting for tree to go green)

48459 Fix platform view pointer event global route position detection (cla: yes, framework)