15513 Roll src/third_party/dart 32ce9c7872e2..28c335d5a201 (2 commits) (autoroller: commit, cla: yes)

15547 Roll fuchsia/sdk/core/linux-amd64 from Xh8_9… to oxHfW… (autoroller: commit, cla: yes)

15557 Typo fix to kick tests. (cla: yes)

15560 Add support for software text editing controls (cla: yes)

15562 [SkParagraph] Copy font features to the Skia layout engine text style (cla: yes)

15563 Add a type parameter to SavedState.Creator in the new embedding (cla: yes)

15565 [web] Freeze window.defaultRouteName (cla: yes, platform-web, waiting for tree to go green)