20250 Fix the reversal of behavior in SerializeTypefaceWithData and WithoutData (cla: yes, waiting for tree to go green)

20256 [web] Save the autofill information (cla: yes)

20266 [windows] Rework controller/engine interaction in the API (cla: yes)

20269 add a named constructor to FrameTiming (cla: yes, waiting for tree to go green)

20272 Roll CanvasKit to 0.17.3. (cla: yes)

20276 [web] Implement support for WidgetSpan (aka paragraph placeholders) (cla: yes, platform-web)

20278 [web] Eagerly calculate relevant indices during line break detection (cla: yes, platform-web)

20279 use generic name (cla: yes)