17980 [web] Fix cachedLastStyle state leak across canvases. Reduce ctx.font reset calls. (cla: yes)

17981 Started ignoring remote keyboard notifications. (cla: yes)

17985 remove top padding when system UI in fullscreen mode (cla: yes)

17986 Autofill main part (cla: yes)

17987 Roll fuchsia/sdk/core/linux-amd64 from eapIV… to 3h-X9… (cla: yes, waiting for tree to go green)

17988 Bumped up the timeout for testAccessibilityFocusOnTextSemanticsProducesCorrectIosViews (cla: yes)