12446 Add support for JIT release mode (cla: yes)

12447 Reflect selection changes in Firefox for text editing (cla: yes, platform-web)

12448 Make kDoNotResizeDimension public so framework can use it directly (cla: yes)

12450 Adds support for 5 mouse buttons (cla: yes)

12453 Adding Link SemanticsFlag (accessibility, affects: framework, cla: yes)

12454 Add .mskp file to binary format (cla: yes)

12455 Revert “Send TYPE_VIEW_FOCUSED for views with input focus. (#12410)” (cla: yes)

12466 Revert “Support accessibility labels on iOS switches.” (cla: yes)