90631 Roll Plugins from 8c5f0f04cade to d2c6c4314412 (2 revisions) (cla: yes, waiting for tree to go green)

90634 Fix scrollbar dragging into overscroll when not allowed (framework, a: fidelity, f: scrolling, cla: yes, f: gestures, waiting for tree to go green, a: desktop, a: mouse)

90636 Always support hover to reveal scrollbar (framework, a: fidelity, f: scrolling, cla: yes, a: quality, platform-web, waiting for tree to go green, a: desktop, a: mouse)

90642 Migrate Gradle (team, tool, a: accessibility, cla: yes, d: examples, integration_test)