28174 No shrinking for BackdropFilter’s cull rect (cla: yes, framework, severe: API break, waiting for tree to go green)

28175 Only call Activity.reportFullyDrawn on Lollipop or above (cla: yes, team, team: gallery)

28193 Clean up flutter_gallery.cmx’s sandbox (cla: yes, team, team: gallery)

28214 [Material] Add the ability to theme trailing app bar actions independently from leading (cla: yes, f: material design, framework)

28215 Minor UI tweaks to Cards demo based on internal feedback (cla: yes, team, team: gallery)

28242 Add long-press-move support for text fields 2 (a: text input, cla: yes, f: cupertino, f: gestures, f: material design, framework, severe: API break)