49913 Step 2 of 4: AboutDialog uses scrollable AlertDialog (cla: yes, f: material design, framework, waiting for tree to go green)

49916 Roll engine 6b8c150639b5..e625e174c5df (3 commits) (autoroller: commit, cla: yes)

49920 Image provider fix (a: images, cla: yes, framework, waiting for tree to go green)

49925 Fix custom Elements that wants to decorate State.build (cla: yes, framework, waiting for tree to go green)

49927 Roll engine e625e174c5df..0816c040fbba (6 commits) (autoroller: commit, cla: yes)

49956 Fix stack filtering (cla: yes, framework, waiting for tree to go green)