56951 Revert “Bring back paste button hide behavior 2” (a: accessibility, cla: yes, f: cupertino, f: material design, framework, team)

56968 setState() will call scheduleFrame() in post-frame callback now. (a: accessibility, cla: yes, framework, waiting for tree to go green)

57139  Bring back paste button hide behavior 3 (a: accessibility, cla: yes, f: cupertino, f: material design, framework, team, waiting for tree to go green)

57286 Revert “ Bring back paste button hide behavior 3” (a: accessibility, cla: yes, f: cupertino, f: material design, framework, platform-web, team, waiting for tree to go green)