49873 Roll engine 74d07b5f6b4f..804dca62a17c (13 commits) (autoroller: commit, cla: yes)

49884 update template for gen_keycodes (cla: yes, team, waiting for tree to go green)

49886 Revert “Elide tree walks” (cla: yes, framework)

49891 Reland elide long tree walks (cla: yes, framework, waiting for tree to go green)

49894 [web] Fix typo apple-mobile-web-app-status-bar-style (cla: yes, d: examples, team, team: gallery, waiting for tree to go green)

49896 reland Refactors global key duplication detection (cla: yes, f: cupertino, f: material design, framework, waiting for tree to go green)