45442 Engine roll to include SkRRect fix (cla: yes, engine)

45455 Disable tests that fail on non-master branches (cla: yes, team)

PRs closed in this release of flutter/engine

From Sun Aug 19 17:37:00 2019 -0700 to Mon Nov 25 12:05:00 2019 -0800

8507 Add texture support for macOS shell. (affects: desktop, cla: yes, platform-macos, waiting for customer response)

9386 [glfw] Send the glfw key data to the framework. (affects: desktop, cla: yes, glfw)

9498 Notify framework to clear input connection when app is backgrounded (#35054). (cla: yes)